4A Monolithic synchronous step-down converter with high efficiency at light load

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  • The ST1S50 device is a 500 kHz fixed frequency PWM synchronous step-down regulator. The ST1S50 operates from 4.0 V to 18 V input, while it regulates an output voltage as low as 0.8 V and up to 0.88 x VIN.

    The ST1S50 device integrates a 95 mΩ high-side switch and a 69 mΩ synchronous rectifier allowing very high efficiency with very low output voltages.
    The peak current mode control with a special PFM mode enables high efficiency at a light load.
    The ST1S50 device is available in a VFDFPN10 3 x 3 x 1 mm - 10 leads package.

    主要特性

    • 4 A output current
    • 4.0 V to 18 V input voltage
    • Output voltage adjustable from 0.8 V to 0.88 x VIN
    • 500 kHz switching frequency
    • High efficiency at light load
    • Programmable soft-start and enable
    • Integrated 95 mΩ and 69 mΩ power MOSFETs
    • All ceramic capacitor
    • Power Good
    • Cycle-by-cycle current limiting
    • Short-circuit protection
    • VFDFPN10 3 x 3 x 1 mm - 10 L

样片和购买

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ST1S50PUR DFN10 3X3 Tape And Reel
Active
0.788 10000 EAR99 - 查看供货情况

Distributor availability ofST1S50PUR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 3240 1 Order Now
AVNET AMERICA 3000 0 Order Now
ARROW AMERICA 3000 3000 Order Now
MOUSER WORLDWIDE 3691 1 Order Now
Farnell Element14 EUROPE 1889 1 Order Now
ANGLIA Live EUROPE 6000 1 Order Now

代理商库存报告日期: 2019-08-23

代理商名称

DIGIKEY

库存

3240

Min.Order

1

地区

WORLDWIDE Order Now

AVNET

库存

3000

Min.Order

0

地区

AMERICA Order Now

ARROW

库存

3000

Min.Order

3000

地区

AMERICA Order Now

MOUSER

库存

3691

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

1889

Min.Order

1

地区

EUROPE Order Now

ANGLIA Live

库存

6000

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-08-23

Get sample

ST1S50PUR

封装

DFN10 3X3

包装类型

Tape And Reel

Unit Price (US$)

0.788*

Distributor availability ofST1S50PUR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 3240 1 Order Now
AVNET AMERICA 3000 0 Order Now
ARROW AMERICA 3000 3000 Order Now
MOUSER WORLDWIDE 3691 1 Order Now
Farnell Element14 EUROPE 1889 1 Order Now
ANGLIA Live EUROPE 6000 1 Order Now

代理商库存报告日期: 2019-08-23

代理商名称

DIGIKEY

库存

3240

Min.Order

1

地区

WORLDWIDE Order Now

AVNET

库存

3000

Min.Order

0

地区

AMERICA Order Now

ARROW

库存

3000

Min.Order

3000

地区

AMERICA Order Now

MOUSER

库存

3691

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

1889

Min.Order

1

地区

EUROPE Order Now

ANGLIA Live

库存

6000

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-08-23

供货状态

Active

Unit Price (US$)

0.788

数量

10000

ECCN (US)

EAR99

Country of Origin

-

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

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      4 A monolithic synchronous step-down switching converter with high efficiency at light load
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      701.19 KB
      PDF
      DS10105

      4 A monolithic synchronous step-down switching converter with high efficiency at light load

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产品型号 供货状态 封装 等级规格 符合RoHS级别 材料声明**
ST1S50PUR
Active
DFN10 3X3 工业 Ecopack2

ST1S50PUR

Package:

DFN10 3X3

Material Declaration**:

PDF XML

Marketing Status

Active

Package

DFN10 3X3

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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