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.

    主要特性

    • 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
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包装类型
供货状态
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ECCN (US)
Country of Origin
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从ST订购
AST1S31PUR VFDFPN 8 3x3x1.0 Tape And Reel
Active
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 21000 0 Order Now
MOUSER WORLDWIDE 100 1 Order Now

代理商库存报告日期: 2019-08-08

代理商名称

ARROW

库存

21000

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: 2019-08-08

Get sample

AST1S31PUR

封装

VFDFPN 8 3x3x1.0

包装类型

Tape And Reel

Unit Price (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 21000 0 Order Now
MOUSER WORLDWIDE 100 1 Order Now

代理商库存报告日期: 2019-08-08

代理商名称

ARROW

库存

21000

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: 2019-08-08

供货状态

Active

Unit Price (US$)

1.258

数量

10000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

(*) 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

Education

Product included in our Longevity Program.

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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**
AST1S31PUR
Active
VFDFPN 8 3x3x1.0 汽车 Ecopack2

AST1S31PUR

Package:

VFDFPN 8 3x3x1.0

Material Declaration**:

PDF XML

Marketing Status

Active

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.