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AS1341 Buck Converter

HV DC-DC step-down converter 20V, 600mA


  • Input 4.5V to 20V with 12µA quiescent current
  • 600mA @ 1.25V to Vin
  • Power good signal


  • Industrial supply range
  • Flexible power rails
  • Supervisor function included

Product parameters

Input Voltage [V] 4.5 to 20
Output Voltage [V] 1.25 to Vin
Output Current [mA] 600
Efficiency [%] 96
Iq [µA] 12
Architecture Hysteretic, async.
fmax [kHz] <250
Enable/SHDN [/SHDN] Yes
Reset [POK] Yes
Features 100% duty cycle, fixed 5.0V output voltage, in adjustable variant adjustable in whole range
Package TDFN-8 (3x3)

General Description

The AS1341 is a hysteretic buck converter, capable of driving 600mA at 1.25V to Vin output. With efficiencies up to 96%, the device operates between 4.5V to 20V input.

This product suits for the following applications:

  • Notebook computers
  • Distributed power systems
  • Keep-alive supplies
  • Any other battery-operated, portable device


Title Category Headline Buy
AS1341EvalKit Application Board Evaluation Kit for AS1341

Technical Documents

Name Type Description Version Language
AS1341_BD000283_1-00.png Block Diagram AS1341 Block Diagram 1-00 English
AS1341_DS000268_1-00.pdf Datasheet Document version 1.09 1-00 English
AS1341_PD000390_1-00.png Other Product Document AS1341EvalKit Image 1-00 English
AS1341_UG000163_2-00.pdf User Guide Evaluation board 2-00 English

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