fish001

3A/2.3MHz step-down synchronous switching regulator based on AST1S31HF (DFN 3x3 package)

STEVAL-ISA160V1

 
Overview

The STEVAL-ISA160V1 evaluation board is based on the AST1S31HF internally compensated 2.3 MHz fixed-frequency PWM synchronous step-down regulator.

The device operates on a 2.8 V to 4.0 V input voltage and provides a regulated output voltage from as low as 0.8 V up to Vin.
The peak current mode control with internal compensation delivers a very compact solution with a minimum component count.
All the components on the evaluation board are automotive grade.

Main features

  • AECQ100 qualification
  • 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 fold back short circuit protection
  • VFDFPN 3x3 - 8L package
  • RoHS compliant
参考设计图片
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Update:2025-06-24 20:42:09

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