Silergy Corp was founded in 2008 and completed its IPO in 2013. By pursuing technology innovation and global expansion, Silergy has become the performance leader in the analog IC industry with annual growth rate of over 3 0 % in the pasts 10 years.

The main products include: DC/DC, AC/DC, PMIC, LED lighting, BMS, light sensor, motor driver, audio power amplifier, power module, protection switch, Energy measurement, metering and signal chains solutions.

Silergy has the industry-leading process technology to design innovative mixed-signal and analog IC. Our products are widely used in automotive, industrial, consumer, computing and telecom equipment. We have always been committed to providing our customers with better performance and higher reliability analog IC.

IMPORTANT NOTICE

Right to make changes. Silergy and its subsidiaries (hereafter Silergy) reserve the right to change any information published in this document, including but not limited to circuitry, specification and/or product design, manufacturing or descriptions, at any time and without notice. This document supersedes and replaces all information supplied prior to the publication hereof. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All semiconductor products are sold subject to Silergy’s standard terms and conditions of sale.

Applications. Application examples that are described herein for any of these products are for illustrative purposes only. Silergy makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Buyers are responsible for the design and operation of their applications and products using Silergy products. Silergy or its subsidiaries assume no liability for any application assistance or designs of customer products. It is customer’s sole responsibility to determine whether the Silergy product is suitable and fit for the customer’s applications and products planned. To minimize the risks associated with customer’s products and applications, customer should provide adequate design and operating safeguards. Customer represents and agrees that it has all the necessary expertise to create and implement safeguards which anticipate dangerous consequences of failures, monitor failures and their consequences, lessen the likelihood of failures that might cause harm and take appropriate remedial actions. Silergy assumes no liability related to any default, damage, costs or problem in the customer’s applications or products, or the application or use by customer’s third-party buyers. Customer will fully indemnify Silergy, its subsidiaries, and their representatives against any damages arising out of the use of any Silergy components in safety-critical applications. It is also buyers’ sole responsibility to warrant and guarantee that any intellectual property rights of a third party are not infringed upon when integrating Silergy products into any application. Silergy assumes no responsibility for any said applications or for any use of any circuitry other than circuitry entirely embodied in a Silergy product.

Limited warranty and liability. Information furnished by Silergy in this document is believed to be accurate and reliable. However, Silergy makes no representation or warranty, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. In no event shall Silergy be liable for any indirect, incidental, punitive, special or consequential damages, including but not limited to lost profits, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges, whether or not such damages are based on tort or negligence, warranty, breach of contract or any other legal theory. Notwithstanding any damages that customer might incur for any reason whatsoever, Silergy’ aggregate and cumulative liability towards customer for the products described herein shall be limited in accordance with the Standard Terms and Conditions of Sale of Silergy.

Suitability for use. Customer acknowledges and agrees that it is solely responsible for compliance with all legal, regulatory and safety-related requirements concerning its products, and any use of Silergy components in its applications, notwithstanding any applications-related information o support that may be provided by Silergy. Silergy products are not designed, authorized or warranted to be suitable for use in life support, life-critical or safety-critical systems or equipment, nor in applications where failure or malfunction of an Silergy product can reasonably be expected to result in personal injury, death or severe property or environmental damage. Silergy assumes no liability for inclusion and/or use of Silergy products in such equipment or applications and therefore such inclusion and/or use is at the customer’s own risk.

Terms and conditions of commercial sale. Silergy products are sold subject to the standard terms and conditions of commercial sale, as published at http://www.silergy.com/stdterms, unless otherwise agreed in a valid written individual agreement specifically agreed to in writing by an authorized officer of Silergy. In case an individual agreement is concluded only the terms and conditions of the respective agreement shall apply. Silergy hereby expressly objects to and denies the application of any customer’s general terms and conditions with regard to the purchase of Silergy products by the customer.

No offer to sell or license. Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights. Silergy makes no representation or warranty that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right. Information published by Silergy regarding third-party products or services does not constitute a license to use such products or services or a warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from Silergy under the patents or other intellectual property of Silergy. For more information, please visit: www.silergy.com

CONTENT

CONTENT

BMS

Gauge IC

Page 284\~327

CONTENT

CONTENT

07 Signal Chain

Single Output Step Down (Buck) Converter V _ { \vert N \vert } Max < 7V

Single Output Step Down (Buck) Converter \mathsf { V } _ { \mathsf { I N } } Max < 7V

\* Not recommended for new design

Dual Output Step Down (Buck) Converter V _ { \vert \mathsf { N } } Max < 7V

Single Output Step Down (Buck) Converter V _ { \vert N \vert } Max < 7V

SQ28072ART - 2 1 \mu \mu Ultra Low IQ, 1.5MHz, 2A Sync Buck

Features

Applications

Voltage-output, Current-sense Amplifier
2.5V to 5.5V Input Voltage Range
Ultra-Fast Load Transient Speed
Low RDS(ON) for Internal Switches (Top/Bottom) 45mΩ
/ 3 5 \mathsf { m } \Omega
High Switching Frequency 1.5MHz Minimizes the External
Components
± 1 % Feedback or Output Voltage Accuracy Over 0 ^ { \circ } C ^ { ~ } 8 5 ^ { \circ } C
Temperature Range
± 1 . 5 % Feedback or Output Voltage Accuracy Over \angle 4 0 ^ { \circ } \mathsf C
~ 1 2 5 ^ { \circ } \mathsf C Temperature Range
PFM Mode for Light Load Efficiency
2 1 \mu \mu Operating Quiescent Current
Internal Soft-Start Limits the Inrush Current
100 % Dropout Operation
Output Auto Discharge Function
Auto Recovery for SCP/OVP/OTP Protection
RoHS Compliant and Halogen Free
Compact Package: SOT563

Portable Electronics Industrial PC Smart Phone

SQ28053QWC - High Efficiency 1.5MHz, 3A Ultra Fast Dynamic Response Sync Buck

Features

Applications

2 . 7 5 ^ { ~ } 5 . 5 \lor Input Voltage Range
Ultra Fast Load Transient Speed
Low RDS(ON) for Internal Switches (Top/Bottom) 85mΩ /50mΩ
High Switching Frequency 1.5MHz Minimizes the External Components
External Soft-start Limits the Inrush Current
CCM Only Operation
Reliable Short Circuit Protection: Hic-cup Mode
Output Auto Discharge Function
RoHS Compliant and Halogen Free
Compact Package: QFN 1 . 5 { x } 1 . 5 { - } 7

Smart Phone LCD TV Set Top Box Mini-notebook PC

SQ28703SYD/SQ28704SYD/SQ28706SYD

- High Efficiency, 1M/2.4MHz, 3A/4A/6A Sync Buck

Features

Applications

2 . 5 ^ { ~ } 6 . 0 \mathsf { V } Input Voltage Range
2 3 \mu \ A Low Quiescent Current(SQ28703/28706)
Low R _ { \mathsf { D S ( O N ) } } for Internal Switches
Instant PWM Control Achieve Ultra Fast Dynamic Response
2.4MHz Switching Frequency Minimizes the External
Components
Internal Soft-start Limits the Inrush Current
100 % Drop Out Operation
Output Auto Discharge Function
Hiccup Mode for Short Circuit Protection
RoHS Compliant and Halogen Free
Compact Package: DFN2 x 2 - 7

Set Top BoxUSB DongleMedia PlayerSmart Phone

SQ28703/6SQ28704VN: 2.5-6V IN LX 53 VouT VIN: 2.5-6.0V VIN LX L:047H VouT:1.2VWR CF TCouT 时 新 CouT 22uFR ENT M1< 4

SQ28003DQD/SQ28003ADQD/SQ28004DQD

- High Efficiency 1.5MHz, 3A Ultra Fast Dynamic Response Sync Buck

Features

Applications

Low R _ { \mathsf { D S ( O N ) } } for Internal MOSFETs: 38mΩ Top, 30mΩ Botto
Wide Input Voltage Range: 2 . 5 \mathsf { V } ~ 5 . 5 \mathsf { V }
Up to 3A Output Current
± 1 % 0 . 6 \mathsf { V } Reference
PFM Light Load Operation for High Efficiency
Internal Soft-Start Limits the Inrush Current
2.2MHz Switching Frequency Minimizes the External
Components
Advanced Constant On-time and Ripple-Based Control to
Achieve Fast Transient Responses
100 % Dropout Operation
Power Good Indicator
Output Auto Discharge Function
Cycle-by-Cycle Peak Current Limit Protection
Hic-Cup Mode Output Under Voltage Protection
Auto-Recovery Mode Over Temperature Protection
Input Under Voltage Lockout (UVLO)
RoHS-Compliant and Halogen-Free
Compact Package: DFN 1 . 5 { x } 1 . 5 { - } 6
Moisture Sensitivity Level (MSL): 1

Portable Electronics Notebooks and Desktop PCs Smart Phones

SQ28903BAT - High-Efficiency, 6V, 3A 2.2MHz Synchronous Step-Down Regulator

Features

Applications

2 . 8 \mathsf { V } ^ { ~ } 6 \mathsf { V } Input Voltage Range
Up to 3A Output Current Capability
Low R _ { \mathsf { D S ( O N ) } } for Internal Switches (Top/Bottom): 65mΩ/25mΩ
Constant Frequency Peak Current Mode Control
3 8 \mu \ A Quiescent Current (Typ.)
2 . 5 \mu { A } Shutdown Current (Typ.)
± 1 % 0 . 6 \mathsf { V } Reference Over \angle 4 0 ^ { \circ } \mathsf { C } to + 1 2 5 ^ { \circ } \mathsf C
2.2MHz Switching Frequency
Internal Soft-Start Limits Inrush Current
Forced PWM or PFM Operation Selectable in Light Load
100 % Duty Cycle Dropout Operation
Spread Spectrum Clocking
Power-Good Indicator
Hiccup Mode for Short-Circuit Protection
Compact SOT583 Package

Low-Voltage I/O System Power Portable and Mobile Devices Battery-Powered Devices

SQ28906QDC - 2 1 \mu \mu Ultra Low IQ, 3A, 2.2MHz Sync Buck

Features

Applications

Input Voltage Range: 2.95V to 6V
Low R _ { \mathsf { D S ( O N ) } } for Internal Switches (Top/Bottom): 1 2 \mathsf { m } \Omega / 1 2 \mathsf { m } \Omega
0 . 6 \lor ± 1 % Voltage Reference Over Temperature Range (TJ: - \angle 4 0 ^ { \circ } \mathsf C to 1 2 5 ^ { \circ } \mathsf { C } )
200kHz to 2MHz Switching Frequency
CCM Only Operation
Start-up with Pre-biased Voltage
Adjustable Input Voltage UVLO by EN
External Soft-start Limits the Inrush Current
Power Good Indicator
Hic-cup Mode Output Short Circuit Protection
Over Temperature Protection with Auto recovery
RoHS Compliant and Halogen Free
Compact Package: QFN3 x 3 -16

Telecom • Server

SQ28956WEQ

- Continuous Source- or Sink-Current, 6A, 6V Input High-Efficiency Sync Buck

Features

Applications

0 . 8 \mathsf { V } to 6V Input Voltage Range
6A Continuous Output Source or Sink Current
Internal 18mΩ Power Switch and 10mΩ Sync Rectifier
Accurate ± 1 % Output Voltage
Fast Transient Response
600kHz and 1000kHz Operating Frequency
Adjustable 0.4 to 1.2V Output Voltage
Selectable Peak-, Valley-, and Reverse-Current Limit
Selectable Automatic High-Efficiency Discontinuous Operating
Mode at Light Loads
Output Voltage Tracking Using an External Voltage Reference
Internal Soft-Start Limits Inrush Current
Smooth Pre-Biased Startup
Power-Good Indicator
Auto-Recovery for Input Undervoltage (UVLO), Output
Undervoltage (UVP), Output Overvoltage (OVP) and
Overtemperature (OTP) Conditions
MSL-3 Compliant
Package: QFN3.5mm×4mm

Memory Termination Regulator for DDR/DDR2/DDR3/DDR3L/DDR4 \mathsf { v } _ { \Pi } Termination

Single Output Step Down (Buck) Converter V _ { \vert N \vert } Max < 7V

SY8018ADFC

- High Efficiency, 1 . 5 \mu \ A Ultra Low Quiescent Current, Synchronous Step Down Regulator

Features

2 . 5 { ~ } 5 . 5 \lor Input Voltage Range 1 . 5 \mu \ A Typical Quiescent Current Low R _ { \mathsf { D S } ( \mathsf { O N } ) } for Internal Switches (Top/Bottom) : 0.4/0.2Ω Typical 450mA Peak Current Limit Internal Soft-start Limits the Inrush Current RoHS Compliant and Halogen Free Compact Package: DFN2x2-8

Applications

Battery Powered Applications Consumer and Portable Medical Products Personal Care Products

SY8851DFC/SY8851BDFC

- 400nA Low-IQ, 5.5V, 500mA, 1MHz Synchronous Step-Down Regulator

Features

Input Voltage Range: 2.2\~5.5V(SY8851)
2.0\~5.5V(SY8851B)
Ultra Low Quiescent Current Down to 400nA Low RDS(ON) for Internal Switches (Top/Bottom) 280mΩ /120mΩ
Instant PWM Control to Achieve Ultra Fast Load Transient Speed.
High Switching Frequency 1.0MHz Minimizes the External Components
Internal Soft-start Limits the Inrush Current
Power Good Indicator
Hiccup Mode for Output Short Circuit Protection 100 % Drop Out Operation
Output Auto Discharge Function
RoHS Compliant and Halogen Free
Compact Package: DFN2x2-8

Applications

Battery Powered Applications Consumer and Portable Medical Products Personal Ware Products

SY8078BDTC - High Efficiency3.0MHz, 0.6A Synchronous Step Down Regulator

Features

Input Voltage Range: 2.5\~5.5V(SY8078B) 2.05\~5.5V(SY8078/A)
1 . 5 \mu \ A Typical Quiescent Current
Fixed 100us soft-start time(SY8078/A)
CCM only operation(SY8078/A)
Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches (Top/Bottom) :
0 . 3 5 / 0 . 2 5 \Omega
Typical 450mA Peak Current Limit(SY8078B)
Internal Soft-start Limits the Inrush Current(SY8078B
RoHS Compliant and Halogen Free(SY8078B)
Compact Package: DFN2x2-8(SY8078B) DFN1.45x1-6(SY8078/A)

Applications

Battery Powered Applications(SY8078B)
Consumer and Portable Medical Products(SY8078B)
Personal Care Products(SY8078B)
Portable Audio, Portable Media(SY8078/A)
Cell phones(SY8078/A)
Digital Cameras(SY8078/A)

SY8088IAAC - High-Efficiency, 1.5MHz,1A Synchronous Step-Down Regulator

Features

2 . 5 \mathsf { V } to 5.5V Input Voltage Range
Up to 1A Output Current
Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches: 260mΩ Top,
1 6 0 \mathsf { m } \Omega Bottom
Low 5 0 \mu \ A Quiescent Current
High 1.5MHz Switching Frequency Minimizes
Required External Components
Constant-Off-Time and Peak-Current-Mode Control
Internal Soft-Start Limits the Inrush Current
100 % Dropout Operation
Power-Good Indicator
Hiccup Mode for Short-Circuit Protection
Output Auto-Discharge Function
RoHS-Compliant and Halogen-Free
Compact Package: SOT23-5

Applications

Set-Top BoxUSB DongleMedia PlayerSmart phone

Features

2 . 5 \mathsf { V } to 5 . 5 \mathsf { V } Input Voltage Range
5 0 \mu \ A Low Quiescent Current
Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches (Top/Bottom): 260mΩ /160mΩ
High Switching Frequency 1.5MHz Minimizes the External Components
Internal Soft-start Limits the Inrush Current
100 % Dropout Operation
Reliable Short Circuit Protection
Without Output Auto Discharge Function
RoHS Compliant and Halogen Free
Compact Package: SOT23-5

Applications

Set Top BoxUSB DongleMedia PlayerSmart phone

SY8080AAC - High Efficiency 3MHz, 1A Synchronous Step Down Regulator

Features

Low { \sf R } _ { \sf D S ( O N ) } for internal switches (top/bottom)
2 7 0 { m } \Omega / 1 6 0 { m } \Omega
2 . 5 { ~ } 5 . 5 \lor input voltage range
High switching frequency 3.0MHz minimizes the
external components
Internal soft-start limits the inrush current
100 % dropout operation
RoHS Compliant and Halogen Free
Compact package: SOT23-5

Applications

Portable Navigation Device
Set Top Box
USB Dongle
General DescriptionMedia Player
Smart phone

Features

Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for internal switches (top/bottom) 260mΩ/170mΩ
2 . 5 { ~ } 6 . 5 \lor input voltage range
4 0 \mu \ A typical quiescent current
High light load efficiency
High switching frequency 1.5MHz minimizes the external components
Internal soft-start limits the inrush current
100 % dropout operation
RoHS Compliant and Halogen Free
Compact package: SOT23-5

Applications

Portable Navigation Device
Set Top Box
USB Dongle
Media Player
Smart phone

SY80091ART/SY80091MART

- High Efficiency, 1.5MHz, 1A, 5.5V Input Synchronous Buck Converter

Features

Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal MOSFETs: 170mΩ Top,
1 0 0 { m } \Omega Bottom
Wide Input Voltage Range: 2 . 5 \mathsf { V } ~ 5 . 5 \mathsf { V }
Up to 1A Output Current
± 1 . 5 % 0 . 6 \mathsf { V } Reference
PFM Light Load Operation
Internal Soft-Start Limits the Inrush Current
1.5MHz Switching Frequency Minimizes the
External Components
Constant Off-time and Peak Current Mode Control
to Achieve Fast Transient Responses
100 % Dropout Operation
Output Auto Discharge Function
Power Good Indicator for SY80091
Cycle-by-Cycle Peak Current Limit Protection
Hic-Cup Mode Output Under Voltage Protection
Auto-Recovery Mode Over Temperature Protection
Input Under Voltage Lockout (UVLO)
RoHS-Compliant and Halogen-Free
Compact Package: SOT563
Moisture Sensitivity Level (MSL): 1

Applications

Set-Top BoxUSB DongleMedia PlayerSmart Phone

Note: PG pin only for SY80091ART

Features

2 . 5 \mathsf { V } to 5.5V Input Voltage Range
Up to 1A Output Current
5 5 \mu \ A Low Quiescent Current
Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches: 1 7 0 { m } \Omega Top, 100mΩ Bottom
1.5MHz Switching Frequency Minimizes Required External Components
Internal Soft-Start Limits Inrush Current
100 % Dropout Operation
Power-Good Indicator
Hiccup Mode for Short-Circuit Protection
Output Auto-Discharge Function
RoHS-Compliant and Halogen-Free
Compact Package: SOT563

Applications

Set-Top Boxes USB Dongles Media Players Smartphones

SY8891EARC - High Efficiency, 1.5MHz, 5.5V/1A Synchronous Step Down Regulator

Features

2.5V to 5.5V Input Voltage Range.
Low RDS(ON) for Internal Switches (top/bottom) 1 7 0 { m } \Omega / 1 0 0 { m } \Omega
High Switching Frequency 1.5MHz Minimizes the External Components
Internal Soft-start Limits the Inrush Current
100 % Dropout Operation
Forced PWM Operation
Power Good Indicator
Hic-cup for Short Circuit Protection
Output Auto Discharge Function
RoHS Compliant and Halogen Free
Compact Package: SOT563

Applications

Set Top BoxUSB DongleMedia PlayerSmart Phone

SY8011CDQC - High Efficiency, 1.5MHz, 1A Synchronous Step Down Regulator

Features

Low RDS(ON) for internal switches (top/bottom) 230mΩ/150mΩ
2 . 5 { ~ } 5 . 5 \lor input voltage range
Fixed output voltage: 1.3V
High switching frequency 1.5MHz minimizes the external components
Internal soft-start limits the inrush current
RoHS Compliant and Halogen Free
No Output auto discharge function
Compact package: DFN1.5x1.5-6

Applications

Portable Navigation Device
Set Top Box
USB Dongle
Media Player
Smart phone

SY8061IDEC - High Efficiency, 1.5MHz, 1A Synchronous Step Down Regulator

Features

2 . 5 \mathsf { V } to 5.5V Input Voltage Range
5 0 \mu \ A Low Quiescent Current
Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches (Top/Bottom) 220mΩ /130mΩ
High Switching Frequency 1.5MHz Minimizes the External Components
Internal Soft-start Limits the Inrush Current
100 % Dropout Operation
Reliable Short Circuit Protection
Output Auto Discharge Function
RoHS Compliant and Halogen Free
Compact Package: DFN2x2-6

Applications

Set Top BoxUSB DongleMedia PlayerSmart phone

Features

Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for internal switches (top/bottom)
2 3 0 { m } \Omega / 1 5 0 { m } \Omega
2 . 5 { ~ } 5 . 5 \lor input voltage range
High switching frequency 2.5MHz minimizes the
external components
Internal soft-start limits the inrush current
100 % dropout operation
RoHS Compliant and Halogen Free
Output auto discharge function
Compact package: DFN1.5x1.5-6

Applications

Portable Navigation Device
Set Top Box
USB Dongle
Media Player
Smart phone

SY8081x - High Efficiency, 3MHz, 1A Synchronous Step Down Regulator

Features

Applications

Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for internal switches (top/bottom) 230mΩ/150mΩ
2 . 5 { ~ } 5 . 5 \lor input voltage range
Fixed output voltage:
SY8081A: Fixed 1.2VOUT
SY8081B: Fixed 1.5VOUT
SY8081C: Fixed 1.8VOUT
SY8081D: Fixed 2 . 5 \mathsf { V } _ { \mathsf { O U T } }
SY8081E: Fixed 3.3VOUT
SY8081F: Fixed 1.0VOUT
High switching frequency 3MHz minimizes the external components
Internal soft-start limits the inrush current
100 % dropout operation
RoHS Compliant and Halogen Free
Output auto discharge function
Compact package: DFN1.5x1.5-6
Portable Navigation Device
Set Top Box
USB Dongle
Media Player
Smart phone

SY8871DFC/SY8871BDFC

- 400nA ultra low IQ, 1.0MHz, 1.0A continuous Synchronous Step Down Regulator

Features

Input Voltage Range: 2.4\~6.0V(SY8871B) 2.2\~6.5V(SY8871) . Ultra Low Quiescent Current Down to 400nA Low RDS(ON) for the Internal Switches (Top/Bottom) 300mΩ /130mΩ Instant PWM Control to Achieve the Ultra Fast Load Transient Speed High Switching Frequency 1.0MHz Minimizes the External Components Internal Soft-start Limits the Inrush Current Power Good Indicator Hiccup Mode for Output Short Circuit Protection 100 % Drop Out Operation Output Auto Discharge Function RoHS Compliant and Halogen Free Compact Package: DFN2x2-8

Applications

Battery Powered Applications Consumer and Portable Medical Products Personal Ware Products

SY80081AAT - High Efficiency, 1.5MHz, 1A, 5.5V Input Synchronous Buck Converter

Features

Low RDS(ON) for Internal MOSFETs: 260mΩ Top, 160mΩ Bottom
Wide Input Voltage Range: 2.5V \~ 5.5V
Up to 1A Output Current
± 1 . 5 % 0 . 6 \mathsf { V } Reference
PFM Light Load Operation for High Efficiency
Internal Soft-Start Limits the Inrush Current
1.5MHz Switching Frequency Minimizes the External Components
Constant Off-time and Peak Current Mode Control to Achieve Fast Transient Responses
100 % Dropout Operation
Output Auto Discharge Function
Cycle-by-Cycle Peak Current Limit Protection
Hic-Cup Mode Output Under Voltage Protection
Auto-Recovery Mode Over Temperature Protection

Input Under Voltage Lockout (UVLO) RoHS-Compliant and Halogen-Free Compact Package: SOT23-5

Applications

Set Top BoxUSB DongleMedia PlayerSmart Phone

SY8841ARC - High Efficiency 2.0MHz, 1.5A Synchronous Step Down Regulator

Features

2 . 6 { ~ } 5 . 5 \lor Input Voltage Range
5 5 \mu \ A Low Quiescent Current
Ultra Fast Load Transient Speed
Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches (Top/Bottom)
1 8 0 { m } \Omega / 1 0 0 { m } \Omega
High Switching Frequency 2.0MHz Minimizes the
External Components
Internal Soft-start Limits the Inrush Current
Output Auto Discharge Function
RoHS Compliant and Halogen Free
Compact Package: SOT563

Applications

Smart Phone Net PC Mini-notebook PC Access Point Router

SY8842QWC - High Efficiency 2.0MHz, 1.5A Synchronous Step Down Regulator

Features

2 . 6 { ~ } 5 . 5 \lor Input Voltage Range
5 5 \mu \ A Low Quiescent Current
Ultra Fast Load Transient Speed
Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches (Top/Bottom) 180mΩ /100mΩ
High Switching Frequency 2.0MHz Minimizes the External Components
Internal Soft-start Limits the Inrush Current
Power Good Indicator
Output Auto Discharge Function
RoHS Compliant and Halogen Free
Compact Package: QFN1.5x1.5-7

Applications

Smart Phone Net PC Mini-notebook PC Access Point Router

SY8089A1AAC - High Efficiency, 1.5MHz, 2A Synchronous Step Down Regulator

Features

2 . 5 \mathsf { V } to 5.5V Input Voltage Range
5 0 \mu \ A Low Quiescent Current
Low RDS(ON) for Internal Switches (Top/Bottom)
1 3 0 { m } \Omega / 8 5 { m } \Omega
High Switching Frequency 1.5MHz Minimizes the
External Components
Internal Soft-start Limits the Inrush Current
100 % Dropout Operation
Hic-cup for Short Circuit Protection
Output Auto Discharge Function
RoHS Compliant and Halogen Free
Compact Package: SOT23-5

Applications

Set Top BoxUSB DongleMedia PlayerSmart Phone

Features

2 . 5 \mathsf { V } to 5 . 5 \mathsf { V } Input Voltage Range
5 0 \mu \ A Low Quiescent Current
Low { \sf R } _ { \sf D S ( O N ) } for Internal Switches
(Top/Bottom) 130mΩ /85mΩ
High Switching Frequency 1.5MHz
Minimizes the External Components
Internal Soft-start Limits the Inrush Current
100 % Dropout Operation
Reliable Latch off Function When:
 Output Short
 Thermal Shutdown
 Output Voltage> > 1 2 0 % of Regulated Voltage

Output Auto Discharge Function RoHS Compliant and Halogen Free Compact Package: SOT23-5

Applications

Set Top BoxUSB DongleMedia PlayerSmart phone

SY8089E1AAC - High Efficiency, 1.5MHz, 2A Synchronous Step Down Regulator

Features

2 . 5 \mathsf { V } to 5.5V Input Voltage Range
Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches (Top/Bottom)
1 3 0 { m } \Omega / 8 5 { m } \Omega
High Switching Frequency 1.5MHz Minimizes the
External Components
Internal Soft-start Limits the Inrush Current
Forced PWM Operation
100 % Dropout Operation
Hiccup for Short Circuit Protection
Output Auto Discharge Function
RoHS Compliant and Halogen Free
Compact Package: SOT23-5

Applications

Set Top BoxUSB DongleMedia PlayerSmart phone

Features

Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches: 1 3 0 \mathsf { m } \Omega Top, 85mΩ Bottom
2 . 5 \mathsf { V } ~ 5 . 5 \mathsf { V } Input Voltage Range
Up to 2A Output Current
5 0 \mu \ A Low Quiescent Current
1.5MHz High Switching Frequency Minimizes Required External Components
Constant Off-Time and Peak Current Mode Control
Internal Soft-Start Limits Inrush Current
100 % Dropout Operation
Power-Good Indicator
Hiccup Mode for Short-Circuit Protection
Output Auto-Discharge Function
Input Under Voltage Lockout (UVLO)
RoHS-Compliant and Halogen-Free

Applications

Set-Top BoxUSB DongleMedia PlayerSmartphone

SY8002IABC - High Efficiency, 1.5MHz, 2A Synchronous Step Down Regulator

Features

2 . 5 \mathsf { V } to 5.5V Input Voltage Range
5 0 \mu \ A Low Quiescent Current
Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches (Top/Bottom)
130mΩ /85mΩ
High Switching Frequency 1.5MHz Minimizes the
External Components
Internal Soft-start Limits the Inrush Current
100 % Dropout Operation
Power Good Indicator
Reliable Latch off Function When:
 Output Short
 Thermal Shutdown
 Output Voltage> 120 % of Regulated Voltage

Output Auto Discharge Function RoHS Compliant and Halogen Free Compact Package: SOT23-6

Applications

Set Top BoxUSB DongleMedia PlayerSmart phone

Features

2 . 5 \mathsf { V } to 5.5V Input Voltage Range
Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches (Top/Bottom) 130mΩ /85mΩ
High Switching Frequency 1.5MHz Minimizes the External Components
Internal Soft-start Limits the Inrush Current
Forced PWM Operation
100 % Dropout Operation
Hiccup for Short Circuit Protection
Power Good Indicator
Output Auto Discharge Function
RoHS Compliant and Halogen Free
Compact Package: SOT23-6

Applications

Set Top BoxUSB DongleMedia PlayerSmart phone

SY8032IABC - High Efficiency, 1.5MHz, 2A Synchronous Step Down Regulator

Features

2.7V to 5.5V Input Voltage Range
5 0 \mu \ A Low Quiescent Current
Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches (Top/Bottom)
1 3 0 { m } \Omega / 8 5 { m } \Omega
High Switching Frequency 1.5MHz Minimizes the
External Components
Internal Soft-start Limits the Inrush Current
100 % Dropout Operation
Reliable Short Circuit Protection
Power Good Indicator
RoHS Compliant and Halogen Free
Compact Package: SOT23-6

Applications

Set Top BoxUSB DongleMedia PlayerSmart Phone

Features

2.5V–5.5V Input Voltage Range
Up to 2A Output Current
Low RDS(ON) for Internal Switches: 125mΩ Top, 75mΩ Bottom
Low 5 5 \mu \ A Quiescent Current
High 1.5MHz Switching Frequency Minimizes Required External Components
Internal Soft-Start Limits Inrush Current
100 % Dropout Operation
Power-Good Indicator
Hiccup Mode for Short-Circuit Protection
Output Auto-Discharge Function
RoHS-Compliant and Halogen-Free
Compact SOT563 Package

Applications

Set-Top BoxUSB DongleMedia PlayerSmartphone

SY8892BARC - High Efficiency, 1.5MHz, 2A, 5.5V Input Synchronous Buck Converter

Features

Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal MOSFETs: 125mΩ Top, 75mΩ Bottom
Wide Input Voltage Range: 2 . 5 \mathsf { V } ~ 5 . 5 \mathsf { V }
Up to 2A Output Current
± 1 . 5 % 0.6V Reference
PFM Light Load Operation
Internal Soft-Start Limits the Inrush Current
1.5MHz Switching Frequency Minimizes the External Components
Constant Off-time and Peak Current Mode Control to Achieve Fast Transient Responses
100 % Dropout Operation
Output Auto Discharge Function
Cycle-by-Cycle Peak Current Limit Protection
Hic-Cup Mode Output Under Voltage Protection
Auto-Recovery Mode Over Temperature Protection
Input Under Voltage Lockout (UVLO)

Applications

Set-Top BoxUSB DongleMedia PlayerSmart Phone

Features

2 . 5 \mathsf { V } to 5.5V Input Voltage Range Ultra-Fast Load Transient Speed Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches (Top/Bottom) 45mΩ /35mΩ High Switching Frequency 1.5MHz Minimizes the External Components ± 1 % Feedback or Output Voltage Accuracy Over 0 ^ { \circ } ° C ~ 8 5 ^ { \circ } C Temperature Range
 ± 1 . 5 % Feedback or Output Voltage Accuracy Over { - 4 0 ^ { \circ } } C \~125°C Temperature Range PFM Mode for Light Load Efficiency 2 1 \mu \ A Operating Quiescent Current Internal Soft-Start Limits the Inrush Current 100 % Dropout Operation Output Auto Discharge Function
. Auto Recovery for SCP/OVP/OTP Protection RoHS Compliant and Halogen Free Compact Package: SOT563

Applications

Portable Electronics Industrial PC Smart Phone

SY80075ART - 2 1 \mu \mu low IQ, 5.5V, 2A, 1.5MHz Synchronous Buck Converter

Features

Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal MOSFETs: 45mΩ Top, 35mΩ Bottom
2 . 5 \mathsf { V } ~ 5 . 5 \mathsf { V } Input Voltage Range
Up to 2A Output Current
Constant On-Time and Ripple-Based Control
2 1 \mu \ A Quiescent Current
High 1.5MHz Switching Frequency Minimizes Required External
Components
Internal Soft-Start Limits Inrush Current
100 % Dropout Operation
Power Good Indicator
Output Auto-Discharge Function
Hiccup Mode for Short Circuit Protection
RoHS-Compliant and Halogen-Free
Compact SOT563 Package

Applications

Portable Electronics Industrial PC Smart Phone

SY80082AAT - High Efficiency, 1.5MHz, 2A, 5.5V Input Synchronous Buck Converter

Features

Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal MOSFETs: 130mΩ Top, 85mΩ Bottom C Wide Input Voltage Range: 2 . 5 \mathsf { V } ~ 5 . 5 \mathsf { V } Up to 2A Output Current ± 1 . 5 % 0 . 6 \mathsf { V } Reference PFM Light Load Operation for High Efficiency Internal Soft-Start Limits the Inrush Current 1.5MHz Switching Frequency Minimizes the External Components Constant Off-time and Peak Current Mode Control to Achieve Fast Transient Responses 100 % Dropout Operation Output Auto Discharge Function Cycle-by-Cycle Peak Current Limit Protection . Hic-Cup Mode Output Under Voltage Protection . Auto-Recovery Mode Over Temperature Protection  Input Under Voltage Lockout (UVLO)

Applications

Set-Top BoxUSB DongleMedia PlayerSmart Phone

SY80082ABT - High Efficiency, 1.5MHz, 2A, 5.5V Input Synchronous Buck Converter

Features

Applications

Set Top BoxUSB DongleMedia PlayerSmart Phone

Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal MOSFETs: 130mΩ Top, 85mΩ Bottom
Wide Input Voltage Range: 2 . 5 \mathsf { V } ~ 5 . 5 \mathsf { V }
Up to 2A Output Current
± 1 . 5 % 0 . 6 \mathsf { V } Reference
PFM Light Load Operation for High Efficiency
Internal Soft-Start Limits the Inrush Current
1.5MHz Switching Frequency Minimizes the External Components
Constant Off-time and Peak Current Mode Control to Achieve Fast Transient Responses
100 % Dropout Operation
Power Good Indicator
Output Auto Discharge Function
Cycle-by-Cycle Peak Current Limit Protection
Hic-Cup Mode Output Under Voltage Protection
Auto-Recovery Mode Over Temperature Protection
Input Under Voltage Lockout (UVLO)
RoHS-Compliant and Halogen-Free
Compact Package: SOT23-6

SY80002DQD - High Efficiency, 2.2MHz, 2A, 5.5V Input Synchronous Buck Converter

Features

Applications

Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal MOSFETs: 35mΩ Top, 25mΩ Bottom Set-Top Wide Input Voltage Range: 2 . 5 \mathsf { V } ~ 5 . 5 \mathsf { V } USB Dongle Up to 2A Output Current Media Player ± 1 % 0 . 6 \mathsf { V } Reference Smart Phone PFM Light Load Operation for High Efficiency Internal Soft-Start Limits the Inrush Current 2.2MHz Switching Frequency Minimizes the External Components Constant On-time and Ripple-based Control to Achieve Fast Transient Responses 100 % Dropout Operation Power Good Indicator Output Auto Discharge Function Cycle-by-Cycle Peak and Valley Current Limit Protection Hic-Cup Mode Output Under Voltage Protection C Auto-Recovery Mode Over Temperature Protection

Input Under Voltage Lockout (UVLO) RoHS-Compliant and Halogen-Free Compact Package: DFN1 . 5 x 1 . 5 - 6 Moisture Sensitivity Level (MSL): 1

SY8892EARC - High Efficiency, 1.5MHz, 2A Synchronous Step Down Regulator

Features

Applications

2.5V to 5.5V Input Voltage Range.
Low RDS(ON) for Internal Switches (Top/Bottom): 125mΩ /75mΩ
High Switching Frequency 1.5MHz Minimizes the External Components
Internal Soft-start Limits the Inrush Current
100 % Dropout Operation
Forced PWM Operation
Power Good Indicator
Hic-cup for Short Circuit Protection
Output Auto Discharge Function
RoHS Compliant and Halogen Free
Compact Package: SOT563

Set Top BoxUSB DongleMedia PlayerSmart Phone

SY80073ART - 2 1 \mu \mu Ultra Low IQ, 1.5MHz, 3A Synchronous Step Down Regulator

Features

2 . 5 \mathsf { V } to 5 . 5 \mathsf { V } Input Voltage Range Ultra-Fast Load Transient Speed Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches (Top/Bottom) 45mΩ / 3 5 \mathsf { m } \Omega High Switching Frequency 1.5MHz Minimizes the External Components ± 1 % Feedback or Output Voltage Accuracy Over 0 ^ { \circ } \ C ~ 8 5 ^ { \circ } C Temperature Range ± 1 . 5 % Feedback or Output Voltage Accuracy Over - 4 0 ^ { \circ } \mathsf { C } ~ 1 2 5 ^ { \circ } C Temperature Range PFM Mode for Light Load Efficiency 2 1 \mu \ A Operating Quiescent Current Internal Soft-Start Limits the Inrush Current 100 % Dropout Operation Output Auto Discharge Function Auto Recovery for SCP/OVP/OTP Protection RoHS Compliant and Halogen Free  Compact Package: SOT563

Applications

Portable Electronics Industrial PC Smart Phone

SY8079EABC - High Efficiency 6.5V, 2A, 1MHz Synchronous Step Down Regulator

Features

Low RDS(ON) for internal switches
(top/bottom): 125mΩ/95mΩ
2.7-6.5V input voltage range
2A continuous load current capability
1MHz switching frequency minimizes the external compone
Internal soft-start limits the inrush current
Forced PWM operation
Reliable hic-cup short circuit protection:
Reliable non-latch off over-voltage protection:
100 % dropout operation
RoHS Compliant and Halogen Free
Compact package: SOT23-6

Applications

LCD TV
Set Top Box
Net PC
Mini-Notebook PC
Access Point Router

SY80083ABT - High Efficiency, 1MHz, 3A, 5.5V Input Synchronous Buck Converter

Features

Low RDS(ON) for Internal MOSFETs: 85mΩ Top, 60mΩ Bottom
Wide Input Voltage Range: 2 . 5 \mathsf { V } ~ 5 . 5 \mathsf { V }
Up to 3A Output Current
± 1 . 5 % 0 . 6 \mathsf { V } Reference
PFM Light Load Operation for High Efficiency
Internal Soft-Start Limits the Inrush Current
1MHz Switching Frequency Minimizes the External Components
Constant Off-time and Peak Current Mode Control to Achieve Fast Transient Responses
100 % Dropout Operation
Power Good Indicator for SY80083ABT
Output Auto Discharge Function
Cycle-by-Cycle Peak Current Limit Protection
Hic-Cup Mode Output Under Voltage Protection
Auto-Recovery Mode Over Temperature Protection

Applications

Set-Top BoxUSB DongleMedia PlayerSmart Phone

SY80063ABC - High Efficiency, 1MHz, 3A Synchronous Step Down Regulator

Features

2.5V to 5.5V Input Voltage Range 5 5 \mu \ A Low Quiescent Current Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches (Top/Bottom): 85mΩ /60mΩ High Switching Frequency 1MHz Minimizes the External Components Internal Soft-start Limits the Inrush Current 100 % Dropout Operation Power Good Indicator Reliable Latch off Function When:  Output Under Voltage  Thermal Shutdown  Output Voltage > 1 2 0 % of Regulated Voltage C Output Auto Discharge Function RoHS Compliant and Halogen Free Compact Package: SOT23-6

Applications

Set Top BoxUSB DongleMedia PlayerSmart Phone

SY80063AABC - High-Efficiency, 1MHz, 3A Synchronous Step-Down Regulator

Features

2 . 5 \mathsf { V } to 5.5V Input Voltage Range
Up to 3A Output Current
Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches: 85mΩ Top,
6 0 \mathsf { m } \Omega Bottom
Low 5 0 \mu \ A Quiescent Current
High 1MHz Switching Frequency Minimizes
Required External Components
Constant-Off-Time and Peak-Current-Mode Control
Internal Soft-Start Limits the Inrush Current
100 % Dropout Operation
Power-Good Indicator
Hiccup Mode for Short-Circuit Protection
Output Auto-Discharge Function
RoHS-Compliant and Halogen-Free
Compact Package: SOT23-6

Applications

Set Top BoxUSB DongleMedia PlayerSmart Phone

SY80063EABC - High Efficiency, 1MHz, 3A Synchronous Step Down Regulator

Features

2 . 5 \mathsf { V } to 5.5V Input Voltage Range
Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches (Top/Bottom): 85mΩ /60mΩ
High Switching Frequency 1MHz Minimizes the External Components
Internal Soft-start Limits the Inrush Current
100 % Dropout Operation
Power Good Indicator
Hic-cup for Short Circuit Protection
Output Auto Discharge Function
RoHS Compliant and Halogen Free
Compact Package: SOT23-6

Applications

Set Top BoxUSB DongleMedia PlayerSmart Phone

SY80033DFD/SY80033LDFD

- High Efficiency, 1MHz, 3A, 5.5V Input Synchronous Buck Converter

Features

Applications

Low RDS(ON) for Internal MOSFETs: 85mΩ Top, 60mΩ Set-Top Box Bottom USB Dongle Wide Input Voltage Range: 2 . 5 \mathsf { V } ~ 5 . 5 \mathsf { V } Media Player Up to 3A Output Current Smart Phone ± 1 . 5 % 0 . 6 \mathsf { V } Reference PFM Light Load Operation for High Efficiency Internal Soft-Start Limits the Inrush Current 1MHz Switching Frequency Minimizes the External Components W Constant Off-time and Peak Current Mode Control to Achieve R Fast Transient Responses VN: 2.5\~5.5V IN PG LX Vo 100 % Dropout Operation C Power Good Indicator R Cou ON/ QFF Output Auto Discharge Function EN FB Cycle-by-Cycle Peak Current Limit Protection GND R Hic-Cup Mode Output Under Voltage Protection for SY80033 ? Latch-off Mode Output Under Voltage Protection for SY80033L Auto-Recovery Mode Over Temperature Protection for SY80033 Latch-off Mode Over Temperature Protection for SY80033L  Input Under Voltage Lockout (UVLO) RoHS-Compliant and Halogen-Free

SY8883DFC - High Efficiency, 1MHz, 3A Synchronous Step Down Regulator

Features

Applications

Set Top BoxUSB DongleMedia PlayerSmart Phone

2 . 5 \mathsf { V } to 5.5V Input Voltage Range
5 5 \mu \ A Low Quiescent Current
Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches (Top/Bottom): 85mΩ /60mΩ
High Switching Frequency 1MHz Minimizes the External Components
Internal Soft-start Limits the Inrush Current
100 % Dropout Operation
Power Good Indicator
Reliable Latch off Function When:
\blacktriangleright Output Under Voltage
 Thermal Shutdown
\blacktriangleright Output Voltage > 1 2 0 % of Regulated Voltage
Output Auto Discharge Function

SY8883ADFC/SY8003A1DFC

- High-Efficiency, 1MHz, 3A Synchronous Step-Down Regulator

Features

2 . 5 \mathsf { V } to 5.5V Input Voltage Range Up to 3A Output Current . Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches: 8 5 \mathsf { m } \Omega Top, 60mΩ Bottom(SY8883A) 130mΩ Top, 85mΩ Bottom(SY8883A1)  Low 50(SY8883A1)/55μA(SY8883A) Quiescent Current  High \boldsymbol { 1 } \mathsf { M H z } ( \mathsf { S V 8 8 3 A } ) / \boldsymbol { 1 } . 5 \mathsf { M H z } ( \mathsf { S Y 8 8 8 3 A } 1 ) Switching Frequency Minimizes Required External Components C Internal Soft-Start Limits the Inrush Current 100 % Dropout Operation Power-Good Indicator Hiccup Mode for Short-Circuit Protection C Output Auto-Discharge Function  RoHS-Compliant and Halogen-Free  Compact Package: DFN2x2-8

Applications

Set-Top BoxUSB DongleMedia PlayerSmart phone

SY8883EDFC - High Efficiency, 1MHz, 3A Synchronous Step Down Regulator

Features

2 . 5 \mathsf { V } to 5.5V Input Voltage Range
Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches (Top/Bottom): 85mΩ /60mΩ
High Switching Frequency 1MHz Minimizes the External
Components
Internal Soft-start Limits the Inrush Current
100 % Dropout Operation
Power Good Indicator
Hic-cup for Short Circuit Protection
Output Auto Discharge Function
RoHS Compliant and Halogen Free
Compact Package: DFN2x2-8

Applications

Set Top BoxUSB DongleMedia PlayerSmart Phone

SY8003CDFC

- High Efficiency 5.5V, 3A Continuous, 3MHz Synchronous Step Down Regulator

Features

Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches
(Top/Bottom):110mΩ/80mΩ
3A Continuous Load Current Capability
2.7-5.5V Input Voltage Range
High Switching Frequency Minimizes the External Components: 3MHz
Internal Soft-start Limits the Inrush Current
Hic-cup Mode Protection
100 % Dropout Operation
RoHS Compliant and Halogen Free
Compact Package: DFN2x2-8

Applications

LCD TV
Set Top Box
Net PC
Mini-Notebook PC
Access Point Router

SY8893ARC - High-Efficiency, 5.5V, 3A, 1.2MHz Synchronous Step-Down Regulator

Features

2 . 5 \mathsf { V } { ~ } 5 . 5 \mathsf { V } Input Voltage Range
Up to 3A Output Current
Constant Off-time and Peak Current Mode Control
Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches: 100mΩ Top,
6 0 \mathsf { m } \Omega Bottom
Low 5 0 \mu \ A Quiescent Current
High 1.2MHz Switching Frequency Minimizes
Required External Components
Internal Soft-Start Limits Inrush Current
100 % Dropout Operation
Power-Good Indicator
Hiccup Mode for Short-Circuit Protection
Output Auto-Discharge Function
RoHS-Compliant and Halogen-Free
Compact SOT563 Package

Applications

Set-Top BoxUSB DongleMedia PlayerSmartphone

Features

2 . 5 \mathsf { V } to 5.5V Input Voltage Range
5 0 \mu \ A Low Quiescent Current
Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches (Top/Bottom) 100mΩ /60mΩ
High Switching Frequency 1.2MHz Minimizes the External Components
Internal Soft-start Limits the Inrush Current
100 % Dropout Operation
Power Good Indicator
Reliable Latch off Function When:
 Output Under Voltage
\blacktriangleright Thermal Shutdown
 Output Voltage > 1 2 0 % of Regulated Voltage

Output Auto Discharge Function RoHS Compliant and Halogen Free Compact Package: SOT563

Applications

Set Top BoxUSB DongleMedia PlayerSmart phone

SY8893EARC - High Efficiency, 1.2MHz, 3A Synchronous Step Down Regulator

Features

Applications

2 . 5 \mathsf { V } to 5.5V Input Voltage Range
Low RDS(ON) for Internal Switches (Top/Bottom)
100mΩ /60mΩ
High Switching Frequency 1.2MHz Minimizes the
External Components
Internal Soft-start Limits the Inrush Current

Set Top BoxUSB DongleMedia PlayerSmart phone

Forced PWM Operation
 100 % Dropout Operation VIN: 2.5-5.5V L:10 VouT:1.8V IN LX
. Power Good Indicator CIN RpGM RH 2 Cf
 Hic-cup for Short Circuit Protection 100k 100k 10pF CouT1 CoUT2
 Output Auto Discharge Function PG FB 22uF/6.3V10uF/6.3V <
 RoHS Compliant and Halogen Free ON/OFF_ →EN R M
 Compact Package: SOT563 49.9k GND 1

SY8053DBC - High Efficiency, 1MHz, 3A Synchronous Step Down Regulator

Features

2 . 5 \mathsf { V } to 5.5V Input Voltage Range 5 5 \mu \ A Low Quiescent Current Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches (Top/Bottom): 85mΩ /60mΩ High Switching Frequency 1MHz Minimizes the External Components Internal Soft-start Limits the Inrush Current 100 % Dropout Operation Power Good Indicator  Reliable Latch off Function When:  Output Under Voltage  Thermal Shutdown  Output Voltage > 1 2 0 % of Regulated Voltage

Output Auto Discharge Function RoHS Compliant and Halogen Free Compact Package: DFN3x3-10

Applications

Set Top BoxUSB DongleMedia PlayerSmart Phone

SY80083AAT - High Efficiency, 1MHz, 3A, 5.5V Input Synchronous Buck Converter

Features

Applications

Low RDS(ON) for Internal MOSFETs: 85mΩ Top, 60mΩ Bottom Set-Top Box Wide Input Voltage Range: 2 . 5 \mathsf { V } ~ 5 . 5 \mathsf { V } USB Dongle Up to 3A Output Current Media Player ± 1 . 5 % 0.6V Reference Smart Phone PFM Light Load Operation for High Efficiency Internal Soft-Start Limits the Inrush Current 1MHz Switching Frequency Minimizes the External Components Constant Off-time and Peak Current Mode Control to Achieve Fast Transient Responses 100 % Dropout Operation VIN: 2.5\~5.5V 1 VOUT Power Good Indicator for SY80083ABT IN LX Output Auto Discharge Function Cycle-by-Cycle Peak Current Limit Protection CIN RH 5 CouT Hic-Cup Mode Output Under Voltage Protection ON/ QFF EN FB Auto-Recovery Mode Over Temperature Protection Input Under Voltage Lockout (UVLO) GND / R  RoHS-Compliant and Halogen-Free  Compact Package: SOT23-5/SOT23-6

SY8843QWC/SY8843EQWC/SY8843LQWC

- High Efficiency 1.5MHz, 3A Ultra Fast Dynamic Response Synchronous Step Down Regulator

Features

2 . 7 { ~ } 5 . 5 \lor Input Voltage Range
6 5 \mu \mathsf { A } Low Quiescent Current(SY8843/SY8843L)
Ultra Fast Load Transient Speed
Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches (Top/Bottom) 85mΩ /50mΩ
High Switching Frequency 1.5MHz Minimizes the External Components
Internal Soft-start Limits the Inrush Current(SY8843/SY8843L)
External Soft-start Limits the Inrush Current(SY8843E)
Reliable Short Circuit Protection
 SY8843/SY8843E: Hic-cup Mode Protection
 SY8843L: Latch Off Protection
Reliable OVP and OTP Protection
 SY8843: No Latch Off Protection
 SY8843L: Latch Off Protection
Output Auto Discharge Function
RoHS Compliant and Halogen Free
Compact Package: QFN1.5x1.5-7

Applications

Set Top BoxUSB DongleMedia PlayerSmart Phone

SY80056SYD - 2 1 \mu \mu Ultra Low IQ, 2.2MHz Synchronous Step Down Regulator

Features

2 . 5 \mathsf { V } to 5.5V Input Voltage Range
Ultra-Fast Load Transient Speed
Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches (Top/Bottom): 38mΩ /30mΩ
High Switching Frequency 2.2MHz Minimizes the External Compo
± 1 % Feedback or Output Voltage Accuracy
PFM Mode for Light Load Efficiency
2 1 \mu \ A Operating Quiescent Current
Internal Soft-start Limits the Inrush Current
100 % Dropout Operation
Output Auto Discharge Function
Power Good Indicator
Auto Recovery for SCP/OVP/OTP Protection
RoHS Compliant and Halogen Free
Compact Package: DFN2x2-7

Applications

Portable Electronics Industrial PC Smart Phone

SY8859QWC/SY8859LQWC/SY8859MQWC

- High Efficiency 1.0MHz, 3A Synchronous Step Down Regulator

Features

Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches (Top/Bottom) 85mΩ /50mΩ 2 . 7 { ~ } 5 . 5 \lor Input Voltage Range 5 5 \mu \ A Low Quiescent Current Ultra Fast Load Transient Speed High Switching Frequency 1.0MHz Minimizes the External Components Internal Soft-start Limits the Inrush Current Reliable Short Circuit Protection(SY8859)  Reliable Latch off Function When(SY8859L/M)  Output Short(SY8859)  Output Under Voltage(SY8859M)  Thermal Shutdown  Output Voltage> 120 % of Regulated Voltage(SY8859) 1 5 5 % of Regulated Voltage(SY8859M)

Output Auto Discharge Function RoHS Compliant and Halogen Free Compact Package: QFN1.5x1.5-7

Applications

Smart Phone
LCD TV
Set Top Box
Mini-Notebook PC
Access Point Router

Features

2.4V to 5.5V Input Voltage Range Ultra-fast Load Transient Speed Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches (Top/Bottom):35mΩ /25mΩ High Switching Frequency 2.2MHz Minimizes the External Components ± 1 % Feedback or Output Voltage Accuracy (Full Temperature Range) PFM Mode for Light Load Efficiency 1 6 \mu \mathsf { A } Operating Quiescent Current Internal Soft-start Limits the Inrush Current 100 % Dropout Operation Output Auto Discharge Function Power Good Indicator Auto Recovery for SCP/OVP/OTP Protection  RoHS Compliant and Halogen Free

Applications

Portable Electronics Industrial PC Smart Phone

SY80053BDQD - 16μA Ultra Low IQ, 2.2MHz Synchronous Step Down Regulator

Features

Applications

Portable Electronics

Low RDS(ON) for Internal MOSFETs: 35mΩ Top, 25mΩ Bottom Wide Input Voltage Range: 2 . 5 \mathsf { V } ~ 5 . 5 \mathsf { V } Industrial PC Up to 3A Output Current Smart Phone ± 1 % 0.45V Reference PFM Light Load Operation for High Efficiency Internal Soft-Start Limits the Inrush Current 2.2MHz Switching Frequency Minimizes the External Components  Advanced Constant On-time and Ripple-Based Control to Achieve Fast Transient Responses 100 % Dropout Operation Power Good Indicator Output Auto Discharge Function Cycle-by-Cycle Peak Current Limit Protection Hic-Cup Mode Output Under Voltage Protection Auto-Recovery Mode Over Temperature Protection Input Under Voltage Lockout (UVLO) RoHS-Compliant and Halogen-Free  Compact Package: DFN1.5 1.5-6

SY80003DQD/SY80003EDQD

\mathbf { \varepsilon } - 2 1 \mu \mathsf { A } Ultra Low IQ, 2.2MHz Synchronous Step Down Regulator

Features

Applications

Portable Electronics Industrial PC Smart Phone

2 . 5 \mathsf { V } to 5.5V Input Voltage Range
Ultra-Fast Load Transient Speed
Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches (Top/Bottom):
3 8 \mathsf { m } \Omega / 3 0 \mathsf { m } \Omega
High Switching Frequency 2.2MHz Minimizes the External
Components
± 1 % Feedback or Output Voltage Accuracy (Full Temperature Range)
PFM Mode for Light Load Efficiency
2 1 \mu \ A Operating Quiescent Current
Internal Soft-start Limits the Inrush Current
100 % Dropout Operation
Output Auto Discharge Function
Power Good Indicator
Auto Recovery for SCP/OVP/OTP Protection
RoHS Compliant and Halogen Free
Compact Package: DFN1.5x1.5-6

SY8034DFC

- High Efficiency 6V, 3A continuous, 1MHz Synchronous Step Down Regulator

Features

Low RDS(ON) for internal switches
(top/bottom):115mΩ/95mΩ
3A continuous load current capability
2.7-6V input voltage range
High switching frequency minimizes the external components: 1MHz
Internal softstart limits the inrush current
Reliable hic-cup mode for hard short circuit protection
100 % dropout operation
RoHS Compliant and Halogen Free
Compact package: DFN2x2-8

Applications

LCD TV
Set Top Box
Net PC
Mini-Notebook PC
Access Point Router

Features

2.4V to 5 . 5 \mathsf { V } Input Voltage Range Ultra-fast Load Transient Speed Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches (Top/Bottom):35mΩ /25mΩ High Switching Frequency 2.2MHz Minimizes the External Components ± 1 % Feedback or Output Voltage Accuracy (Full Temperature Range) PFM Mode for Light Load Efficiency 1 6 \mu \mathsf { A } Operating Quiescent Current Internal Soft-start Limits the Inrush Current 100 % Dropout Operation Output Auto Discharge Function Power Good Indicator Auto Recovery for SCP/OVP/OTP Protection RoHS Compliant and Halogen Free  Compact Package: DFN1.5x1.5-6

Applications

Portable Electronics Industrial PC Smart Phone

SY80004DQD - 2 1 \mu \ A Ultra-Low IQ, 2.2MHz Synchronous Step-Down Regulator

Features

2 . 5 \mathsf { V } to 5.5V Input Voltage Range Fast Load-Transient Response Low RDS(ON) for Internal Switches: 38mΩ Top, 30mΩ Bottom 2.2MHz Switching Frequency ± 1 % Output Voltage Accuracy (Full Temperature Range) PFM Mode for Light-Load Efficiency 2 1 \mu \ A Operating Quiescent Current Internal Soft-Start Limits Inrush Current 100 % Duty Cycle Enables Dropout Operation Output Auto-Discharge Function Power-Good Indicator Autorecovery for Short-Circuit, Overvoltage, and Overtemperature PRroHteSc-tiConmpliant and Halogen-Free VIN: 2.5-5.5V L1:0.33uH VouT:1.8V IN LX
 Compact Package: DFN1.5mm x 1.5mm-6 RPGW RH N CF CoUT
Applications 4.7uF 100k PG FB 200k 120pF 22uF Portable Electronics 1 ON/OFF EN
 Industrial PC GND
 Smart Phone 文

SY8884ADFC - High-Efficiency, 1MHz, 4A Synchronous Step-Down Regulator

Features

2 . 5 \mathsf { V } to 5.5V Input Voltage Range Up to 4A Output Current Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches: 8 5 \mathsf { m } \Omega Top, 60mΩ Bottom Low 5 5 \mu \ A Quiescent Current High 1MHz Switching Frequency Minimizes Required External Components Internal Soft-Start Limits the Inrush Current 100 % Dropout Operation Power-Good Indicator Hiccup Mode for Short-Circuit Protection Output Auto-Discharge Function RoHS-Compliant and Halogen-Free  Compact Package: DFN2x2-8

Applications

Set-Top BoxUSB DongleMedia PlayerSmartphone

SY8824BAIC/SY8824DAIC

- 4A, 1.8MHz, I2C Programmable Synchronous Step Down Regulator

Features

2 . 6 \mathsf { V } to 5.5V input voltage range
Fixed frequency operation: 1.8MHz
Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for internal switches (top/bottom): 70mΩ/40mΩ
Programmable Output Voltage: 0.7625V to 1.55V in 12.5mV/step
Default 1.15V output voltage(SY8824B)
Default 0.9V Output Voltage(SY8824D)
4A output current capability
Capable for 0 . 3 3 \mu { H } inductor and 2 2 \mu \ F Ceramic Capacitor
PFM/PWM operation for optimum increased efficiency
OVP/OCP/UVLO/OTP protections

Applications

Smart phone  MID

SY8824CAIC/SY8824EAIC

- 4A, 1.8MHz, I2C Programmable Synchronous Step Down Regulator

Features

2 . 6 \mathsf { V } to 5.5V Input Voltage Range Fixed Frequency Operation: 1.8MHz Low RDS(ON) for Internal Switches (Top/Bottom): 70mΩ/40mΩ ? Programmable Output Voltage: 0.7625V to 1.55V in 1 2 . 5 \mathsf { m V } Steps(SY8824C) 0.7V to 1.15V in 1 2 . 5 \mathsf { m V } Steps(SY8824E)  Default 1.05V Output Voltage(SY8824C)  Default 0.9V Output Voltage(SY8824E)  4A Output Current Capability  Capable for 0 . 3 3 \mu { H } Inductor and 2 2 \mu \ F Ceramic Capacitor  PFM/PWM Operation for Optimum Increased Efficiency

OVP/OCP/UVLO/OTP Protections RoHs Compliant and Halogen Free Compact Package: TSOT23-8

Applications

Smart Phone MID

SY8047QDC - Ultra Low Quiescent Current 1.25MHz, 4A Sync Buck

Features

Input Voltage Range: 2.5V to 5.5V
1.25MHz Switching Frequency
Max Output Current: 4.0A
Peak Current Mode Control for the Fast Transient Speed
100 % Drop Out Function
Typical 1 8 \mu \mathsf { A } Quiescent Current
Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches (PFET/NFET): 75mΩ/55mΩ
Hic-cup Mode Protection for Hard Short Condition
RoHS Compliant and Halogen Free
Compact Package: QFN3x3-16

Applications

Set Top Box
Net PC
Mini-Notebook PC
Access Point Router

SY8057CQDC/SY8057DQDC/SY8057FQDC

- High Efficiency Buck with Low Power Mode & Output Voltage Selection

Features

Applications

NB Application

2 . 5 \mathsf { V } to 5.5V Input Voltage Range Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches (PFET/NFET): 7 0 { m } \Omega / \dot { 4 } 0 { m } \Omega 4A Continuous, 7A Peak Load Current Capabilit ± 1 % Output Voltage Accuracy at PWM Mode PFM Mode at Light Load for High Efficiency Selectable Fixed Output Voltage Through VID0, VID1 Pin Support for Low Power Mode Logic Input Typical 3 0 \mu \ A Typical Quiescent Current Ultra Fast Load Transient Performance Flexible MODE Pull Down Resistor to Program the Required Power Rail Power Good Indicator OVP/SCP/OTP Latch-off Protection RoHS Compliant and Halogen Free . Compact Package: QFN3x3-16

SY8856DFC - 3MHz, 4A Sync Buck

Features

Low \mathsf { R } _ { \mathsf { D S ( O N ) } } for Internal Switches (Top/Bottom):
3 5 / 1 5 \mathsf { m } \bar { \Omega }
2.7-5.5V Input Voltage Range
3MHz Switching Frequency Minimizes the External
Components
Internal Soft-start Limits the Inrush Current
Up to 9 2 % Efficiency
4A Continuous Output Current Capability
Shutdown Mode Draws { < } 0 . 1 \mu \mathsf { A } Supply Current
100 % Dropout Operation
Power Good Indicator
OCP/UVLO/OTP Protections
RoHS Compliant and Halogen Free
Compact Package: DFN2x2-8

Applications

High definition Set Top Box
LCD TV
Notebook PC