Synchronous rectification with inhibit, 0.7 A, 1.7 MHz adjustable, step-down switching regulator

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  • The ST1S12 is a step down DC-DC converter optimized for powering low-voltage digital cores in HDD applications and, generally, to replace the high current linear solution when the power dissipation may cause high heating of the application environment. It provides up to 0.7 A over an input voltage range of 2.5 V to 5.5 V. A high switching frequency (1.7 MHz) allows the use of tiny surface-mount components. In addition to the resistor divider to set the output voltage value, only an inductor and two capacitors are required. Moreover, 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 thermally protected and the current is limited to prevent damage due to accidental short-circuit. The ST1S12 is available in the TSOT23-5L package.

    主要特性

    • Step-down current mode PWM (1.7 MHz) DC-DC converter
    • 3% DC output voltage tolerance
    • Synchronous rectification
    • Fixed output voltage 1.2 V, 1.8 V, and ADJ (available on request 1.5 V, 2.5 V and 3.3 V)
    • Enable function
    • Internal soft start
    • Typical efficiency: > 90%
    • 0.7 A output current capability
    • Not switching quiescent current: max 650 μA over temperature range
    • RDSONtyp. 250 mΩ and 400 mΩ
    • Uses tiny capacitors and inductors
    • Operative junction temp. -40 °C to 125 °C
    • Available in TSOT23-5L package

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样片和购买

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从ST订购
ST1S12G18R TSOT23-5L Tape And Reel
批量生产
0.343 10000 EAR99 - 查看供货情况

Distributor availability ofST1S12G18R

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 1278 1 Order Now
MOUSER WORLDWIDE 2700 1 Order Now
Farnell Element14 EUROPE 3000 1 Order Now

代理商库存报告日期: 2019-10-03

代理商名称

DIGIKEY

库存

1278

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

2700

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

3000

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-10-03

获取样片
ST1S12GR TSOT23-5L Tape And Reel
批量生产
0.343 10000 EAR99 MALAYSIA 查看供货情况

Distributor availability ofST1S12GR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 10087 1 Order Now
MOUSER WORLDWIDE 5937 1 Order Now
RUTRONIK EUROPE 3000 3000 Order Now

代理商库存报告日期: 2019-10-03

代理商名称

DIGIKEY

库存

10087

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

5937

Min.Order

1

地区

WORLDWIDE Order Now

RUTRONIK

库存

3000

Min.Order

3000

地区

EUROPE Order Now

代理商库存报告日期: 2019-10-03

ST1S12G12R TSOT23-5L Tape And Reel
批量生产
0.343 10000 EAR99 MALAYSIA 查看供货情况

Distributor availability ofST1S12G12R

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 3000 1 Order Now
MOUSER WORLDWIDE 2987 1 Order Now
Farnell Element14 EUROPE 2450 1 Order Now

代理商库存报告日期: 2019-10-03

代理商名称

DIGIKEY

库存

3000

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

2987

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

2450

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-10-03

ST1S12G18R

封装

TSOT23-5L

包装类型

Tape And Reel

单价(US$)

0.343*

Distributor availability ofST1S12G18R

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 1278 1 Order Now
MOUSER WORLDWIDE 2700 1 Order Now
Farnell Element14 EUROPE 3000 1 Order Now

代理商库存报告日期: 2019-10-03

代理商名称

DIGIKEY

库存

1278

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

2700

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

3000

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-10-03

供货状态

批量生产

单价(US$)

0.343

数量

10000

ECCN (US)

EAR99

Country of Origin

-

ST1S12GR

封装

TSOT23-5L

包装类型

Tape And Reel

单价(US$)

0.343*

Distributor availability ofST1S12GR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 10087 1 Order Now
MOUSER WORLDWIDE 5937 1 Order Now
RUTRONIK EUROPE 3000 3000 Order Now

代理商库存报告日期: 2019-10-03

代理商名称

DIGIKEY

库存

10087

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

5937

Min.Order

1

地区

WORLDWIDE Order Now

RUTRONIK

库存

3000

Min.Order

3000

地区

EUROPE Order Now

代理商库存报告日期: 2019-10-03

供货状态

批量生产

单价(US$)

0.343

数量

10000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

ST1S12G12R

封装

TSOT23-5L

包装类型

Tape And Reel

单价(US$)

0.343*

Distributor availability ofST1S12G12R

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 3000 1 Order Now
MOUSER WORLDWIDE 2987 1 Order Now
Farnell Element14 EUROPE 2450 1 Order Now

代理商库存报告日期: 2019-10-03

代理商名称

DIGIKEY

库存

3000

Min.Order

1

地区

WORLDWIDE Order Now

MOUSER

库存

2987

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

2450

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-10-03

供货状态

批量生产

单价(US$)

0.343

数量

10000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

(*) 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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技术文档

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      DS5661
      Synchronous rectification with enable, 0.7 A, 1.7 MHz fixed or adjustable step-down switching regulator in TSOT23-5L
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      Synchronous rectification with enable, 0.7 A, 1.7 MHz fixed or adjustable step-down switching regulator in TSOT23-5L

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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**
ST1S12G12R
批量生产
TSOT23-5L 工业 Ecopack2
ST1S12G18R
批量生产
TSOT23-5L 工业 Ecopack2
ST1S12GR
批量生产
TSOT23-5L 工业 Ecopack2

ST1S12G12R

Package:

TSOT23-5L

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

TSOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST1S12G18R

Package:

TSOT23-5L

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

TSOT23-5L

Grade

Industrial

RoHS Compliance Grade

Ecopack2

ST1S12GR

Package:

TSOT23-5L

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

TSOT23-5L

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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V This option is required. And must be greater than or equal to Volt. Min [V]

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