1.5 A, 1.5 MHz adjustable, step-down switching regulator

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  • The ST1S03 is a step-down DC-DC converter optimized for powering a low voltage digital core in HDD applications and, generally, to replace the high current linear solution when the power dissipation may cause a high heating of the application environment. It provides up to 1.5 A over an input voltage range of 3 V to 16 V. A high switching frequency (1.5 MHz) allows the use of tiny surface-mount components: as well as the resistor divider to set the output voltage value, only an inductor, a Schottky diode and two capacitors are required. Besides, a low output ripple is guaranteed by the current mode PWM topology and by the use of low ESR SMD ceramic capacitors. The device is thermal protected and current limited to prevent damages due to an accidental short-circuit. The ST1S03 device is available in a DFN6D package.

    主要特性

    • Step-down current mode PWM (1.5 MHz) DC-DC converter
    • 2% DC output voltage tolerance
    • Internal soft-start for STARTUP current limitation and power on delay of 50 - 100 μs
    • Typical efficiency: > 70% over all operating conditions
    • 1.5 A output current capability
    • Not switching quiescent current: max 2.5 mA over temperature range
    • Switch VDS: max. 350 mV at ISW= 750 mA
    • Uses tiny capacitors and inductors
    • Available in DFN6D 3 x 3 mm package with exposed pad

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样片和购买

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从分销商订购
从ST订购
ST1S03PUR DFN6 3x3 Tape And Reel
批量生产
0.566 10000 EAR99 PHILIPPINES 查看供货情况

Distributor availability ofST1S03PUR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 18259 1 Order Now
RS COMPONENTS EUROPE 13930 1 Order Now
MOUSER WORLDWIDE 7282 1 Order Now
Farnell Element14 EUROPE 1214 1 Order Now

代理商库存报告日期: 2019-10-21

代理商名称

DIGIKEY

库存

18259

Min.Order

1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

13930

Min.Order

1

地区

EUROPE Order Now

MOUSER

库存

7282

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

1214

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-10-21

获取样片

ST1S03PUR

封装

DFN6 3x3

包装类型

Tape And Reel

单价(US$)

0.566*

Distributor availability ofST1S03PUR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 18259 1 Order Now
RS COMPONENTS EUROPE 13930 1 Order Now
MOUSER WORLDWIDE 7282 1 Order Now
Farnell Element14 EUROPE 1214 1 Order Now

代理商库存报告日期: 2019-10-21

代理商名称

DIGIKEY

库存

18259

Min.Order

1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

13930

Min.Order

1

地区

EUROPE Order Now

MOUSER

库存

7282

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

1214

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-10-21

供货状态

批量生产

单价(US$)

0.566

数量

10000

ECCN (US)

EAR99

Country of Origin

PHILIPPINES

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商

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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**
ST1S03PUR
批量生产
DFN6 3x3 工业 Ecopack2

ST1S03PUR

Package:

DFN6 3x3

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

DFN6 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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