3 A DC step-down switching regulator

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  • The AST1S31 device is an internally compensated 1.5 MHz fixed-frequency PWM synchronous step-down regulator. The AST1S31 device operates from 2.8 V to 4 V input, while it regulates an output voltage as low as 0.8 V and up to VIN.

    The AST1S31 integrates a 70 mΩ high-side switch and a 55 mΩ synchronous rectifier allowing very high efficiency with very low output voltages.
    The peak current mode control with an internal compensation deliver a very compact solution with a minimum component count.
    The AST1S31 device is available in a 3 x 3 mm, 8 leads VFDFPN package.

    Key Features

    • AECQ100 qualification
    • 3 A DC output current
    • 2.8 V to 4 V input voltage
    • Output voltage adjustable from 0.8 V
    • 1.5 MHz switching frequency
    • Internal soft-start and enable
    • Integrated 70 mΩ and 55 mΩ power MOSFETs
    • All ceramic capacitor
    • Power Good (POR)
    • Cycle-by-cycle current limiting
    • Current foldback short-circuit protection
    • VFDFPN 3 x 3 - 8L package

样片和购买

产品型号
封装
包装类型
供货状态
预算价格(US$)
数量
ECCN (US)
Country of Origin
从分销商订购
从ST订购
AST1S31PUR VFDFPN 8 3x3x1.0 Tape And Reel
批量生产
1.258 10000 EAR99 MALAYSIA 查看供货情况

Distributor availability ofAST1S31PUR

代理商名称
地区 库存 最小订购量 Third party link
ARROW EUROPE 9000 0 Order Now
MOUSER WORLDWIDE 100 1 Order Now

代理商库存报告日期: 2019-11-11

代理商名称

ARROW

库存

9000

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

100

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-11-11

获取样片

AST1S31PUR

封装

VFDFPN 8 3x3x1.0

包装类型

Tape And Reel

单价(US$)

1.258*

Distributor availability ofAST1S31PUR

代理商名称
地区 库存 最小订购量 Third party link
ARROW EUROPE 9000 0 Order Now
MOUSER WORLDWIDE 100 1 Order Now

代理商库存报告日期: 2019-11-11

代理商名称

ARROW

库存

9000

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

100

Min.Order

1

地区

WORLDWIDE Order Now

代理商库存报告日期: 2019-11-11

供货状态

批量生产

单价(US$)

1.258

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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产品型号 供货状态 封装 等级规格 符合RoHS级别 Material Declaration**
AST1S31PUR
批量生产
VFDFPN 8 3x3x1.0 汽车 Ecopack2

AST1S31PUR

Package:

VFDFPN 8 3x3x1.0

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

VFDFPN 8 3x3x1.0

Grade

Automotive

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.