搜索
取消
搜索历史
收藏

Please log in  to show your saved searches.

AST1S31

批量生产
Education
储存到myST

3 A DC步降开关稳压器

下载数据手册
Order Direct
概述
Online design
样片和购买
解决方案
文件
CAD资源
工具与软件
质量与可靠性
开始
Partner products
Sales Briefcase

产品概述

描述

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.

  • 所有功能

    • 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
    阅读更多 阅读较少信息

精选 产品

特别推荐

相关应用

汽车应用

All resources

Expand all categories
Resource title
Latest update

产品规格 (1)

Resource title
Latest update
DS10018 Up to 4 V, 3 A step-down 1.5 MHz switching regulator for automotive applications 7.0
05 Aug 2020
05 Aug 2020
DS10018 Up to 4 V, 3 A step-down 1.5 MHz switching regulator for automotive applications 7.0

技术文档 (1)

Resource title
Latest update
TN1224 Mounting instructions for SMD (surface mounting device) packages 2.2
20 Jan 2020
20 Jan 2020
TN1224 Mounting instructions for SMD (surface mounting device) packages 2.2

宣传册 (1)

Resource title
Latest update
AST1S3x family Power optimization for postregulated automotive systems 1.0
04 Jan 2021
04 Jan 2021
AST1S3x family Power optimization for postregulated automotive systems 1.0

手册 (1)

Resource title
Latest update
Electric vehicle (EV) ecosystem 1.1
23 Mar 2020
23 Mar 2020
Electric vehicle (EV) ecosystem 1.1

EDA Symbols, Footprints and 3D Models

STMicroelectronics - AST1S31

Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.

Symbols

Symbols

Footprints

Footprints

3D model

3D models

质量与可靠性

产品型号 Marketing Status 封装 等级规格 符合RoHS级别 材料声明**
AST1S31PUR
批量生产
VFDFPN 8 3x3x1.0 汽车应用 Ecopack2

AST1S31PUR

Package:

VFDFPN 8 3x3x1.0

Material Declaration**:

PDF XML
More Info

Marketing Status

批量生产

Package

VFDFPN 8 3x3x1.0

Grade

Automotive

RoHS Compliance Grade

Ecopack2

(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此，它们可能不是100%适用于特定的设备。有关特定设备的信息，请联系 销售支持 。

转换器

Input

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

Output Power

V This option is required and must be a number.
A This option is required and must be a number.

样片和购买

产品型号
从分销商订购
从ST订购
供货状态
ECCN (US)
ECCN (EU)
包装类型
封装
温度（ºC） Country of Origin
Budgetary Price (US$)*/Qty
最小值
最大值
AST1S31PUR 无法联系到经销商，请联系我们的销售办事处 Buy Direct
批量生产
EAR99 NEC Tape And Reel VFDFPN 8 3x3x1.0 - - MALAYSIA 1.258 / 1k

AST1S31PUR

供货状态

批量生产

ECCN (US)

EAR99
更多信息

Budgetary Price (US$)*/Qty

1.258 / 1k

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

VFDFPN 8 3x3x1.0

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

1.258 / 1k

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 。