搜索
取消
搜索历史
收藏

Please log in  to show your saved searches.

AST1S31HF

批量生产
Education
储存到myST

最高4 V、3 A的步降电压2.3 MHz开关稳压器，用于汽车应用

下载数据手册
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 AST1S31HF is an internally compensated 2.3 MHz fixed frequency PWM synchronous step-down regulator. The AST1S31HF 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 AST1S31HF device 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 internal compensation deliver a very compact solution with a minimum component count.
The AST1S31HF is available in a 3 mm x 3 mm, 8-lead VFDFPN package.

  • 所有功能

    • AECQ100 qualified
    • 3 A DC output current
    • 2.8 V to 4 V input voltage
    • Output voltage adjustable from 0.8 V
    • 2.3 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

Start your design with the AST1S31HF now

x

with our eDesignSuite online design aid utilities and simulation tools.

精选 产品

您可能还会喜欢...

STEVAL-ISA160V1

基于AST1S31HF的3 A / 2.3 MHz同步降压开关稳压器，DFN 3x3封装

特别推荐

相关应用

汽车应用

All tools & software

    • 产品型号
      		状态
      		描述
      		类型
      		供应商

      STEVAL-ISA160V1

      批量生产

      基于AST1S31HF的3 A / 2.3 MHz同步降压开关稳压器，DFN 3x3封装

      		 DC-DC Converter ST
      STEVAL-ISA160V1

      描述:

      基于AST1S31HF的3 A / 2.3 MHz同步降压开关稳压器，DFN 3x3封装

All resources

Expand all categories
Resource title
Latest update

产品规格 (1)

Resource title
Latest update
DS10625 Up to 4 V, 3 A step-down 2.3 MHz switching regulator for automotive applications 4.0
15 Sep 2020
15 Sep 2020
DS10625 Up to 4 V, 3 A step-down 2.3 MHz switching regulator for automotive applications 4.0

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 - AST1S31HF

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**
AST1S31HF
批量生产
VFDFPN 8 3x3x1.0 汽车应用 Ecopack1

AST1S31HF

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

Ecopack1

(**) 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
AST1S31HF 无法联系到经销商，请联系我们的销售办事处
批量生产
EAR99 NEC Tape And Reel VFDFPN 8 3x3x1.0 - - MALAYSIA 1.258 / 1k

AST1S31HF

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 。

您知道吗？

Please provide email

Please enter code

Congratulations!

Simple subscription

Congratulations!

x

您可以开始跟踪此产品，以便在新的资源、工具和软件可用时接收更新。操作很简单，只需要1分钟。

您可以开始跟踪此产品，以便在新的资源、工具和软件可用时接收更新。操作很简单，只需要1分钟。

您可以开始跟踪此产品，以便在新的资源、工具和软件可用时接收更新。操作很简单，只需要1分钟。

Invalid code, please check the code sent to your email address and validate again. In case you did not receive any code please select 'I did not receive code'

您可以开始跟踪此产品，以便在新的资源、工具和软件可用时接收更新。操作很简单，只需要1分钟。

ST (as data controller according to the Privacy Policy) will keep a record of my navigation history and use that information as well as the personal data that I have communicated to ST for marketing purposes relevant to my interests. My personal data will be provided to ST affiliates and distributors of ST in countries located in the European Union and outside of the European Union for the same marketing purposes 

---------
I understand that I can withdraw my consent at any time through opt-out links embedded in communication I receive or by managing my account settings. I can also exercise other user’s rights at any time as described in the Privacy Policy.

ST will retain your browsing history and use details of the products and services that you have previously accessed, purchased or downloaded to make suggestions to you for other products and services which ST believe you will also be interested in.
ST uses the personal data that you provide directly to it and through your activity on ST websites in accordance with the Privacy Policy, to send you (directly or via ST local affiliates or distributors) newsletters, advertisements or other specific and targeted marketing material about ST products and services. Your personal data will be provided to ST local affiliates and distributors in countries located in the European Union and outside of the European Union. You can consult the list of ST local affiliates and distributors in our website’s Privacy Policy. To send you specific and targeted marketing material, the information that you provide directly to ST and/or through your activity on ST websites may also be combined with other information that ST obtains from you in another context (e.g. if you enter into a business relationship with ST, its local affiliates or distributors).

现在，您订阅了
- AST1S31HF

You can re-use the validation code to subscribe to another product or application.

Sorry, there was a problem on our servers. Please try again.