AST1S31HF

批量生产
Education

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

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  • 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.

    主要特性

    • 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

适合您的资源

相关应用

车载信息娱乐系统(IVI)

远程信息处理和网络

评估工具

    • 产品型号

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

00 选择要下载的文档

技术文档

    • 描述 版本 文档大小 操作
      DS10625
      Up to 4 V, 3 A step-down 2.3 MHz switching regulator for automotive applications
      3.0
      987.84 KB
      PDF
      DS10625

      Up to 4 V, 3 A step-down 2.3 MHz switching regulator for automotive applications

    • 描述 版本 文档大小 操作
      TN1224
      Mounting instructions for SMD (surface mounting device) packages
      2.2
      1.06 MB
      PDF
      TN1224

      Mounting instructions for SMD (surface mounting device) packages

出版刊物和宣传资料

    • 描述 版本 文档大小 操作
      AST1S3x family Power optimization for postregulated automotive systems 1.0
      896.44 KB
      PDF

      AST1S3x family Power optimization for postregulated automotive systems

    • 描述 版本 文档大小 操作
      Electric vehicle (EV) ecosystem 1.1
      1.28 MB
      PDF

      Electric vehicle (EV) ecosystem

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

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

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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
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封装
包装类型
供货状态
ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
AST1S31HF 没有经销商,请联系我们的销售办事处 立即购买 VFDFPN 8 3x3x1.0 Tape And Reel
批量生产
EAR99 MALAYSIA 1.258 / 1k

AST1S31HF

封装

VFDFPN 8 3x3x1.0

包装类型

Tape And Reel

Budgetary Price (US$)*/Qty

1.258 / 1k

供货状态

批量生产

Budgetary Price (US$)* / Qty

1.258 / 1k

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