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AST1S31HF

批量生产
Design Win 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

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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

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    • 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

EDA符号、封装和3D模型

STMicroelectronics - AST1S31HF

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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。

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Input Specification
Input Specification
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V
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Output Power: 0

样片和购买

AST1S31HF

供货状态

批量生产

ECCN (US)

EAR99
更多信息

Budgetary Price (US$)*/Qty

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

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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