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AS1340 Boost Converter

HV DC-DC step-up converter, 50V, output disconnect in shutdown


  • Input 2.7V to 50V
  • 1W output up to 36V
  • 90% efficiency


  • Wide input voltage
  • Industrial power rails
  • Good thermal performance

Product parameters

Input Voltage [V] 2.7 to 50
Output Voltage [V] 2.7 to 50
Output Current [mA] 100
Efficiency [%] 90
Iq [µA] 30
Architecture Fixed frequency, async.
fmax [kHz] 1000
Enable/SHDN [/SHDN] Yes
Reset [POK] Yes
Features Output disconnect, adjustable output voltage
Package TDFN(3x3)-8

General Description

The AS1340 is a hysteretic boost converter, capable of 1.2W output off 3.3V input. With efficiencies up to 90%, the device operates from 2.7V to 5.5V input to generate 2.7V to 50V output.

This product suits for the following applications:

  • OLED display power supply
  • LCD bias generators
  • Mobile/Cordless phones
  • Palmtop computers
  • PDAs and organizers
  • Handy terminals
  • Any other portable, battery-powered device


Title Category Headline Buy
AS1340EvalKit Application Board Evaluation Kit for AS1340

Technical Documents

Name Type Description Version Language
AS1340_BD000287_1-00.png Block Diagram AS1340 Block Diagram 1-00 English
AS1340_DS000267_1-00.pdf Datasheet Document version 1.20 1-00 English
AS1340_UG000212_1-00.pdf User Guide Evaluation board 1-00 English

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