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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.

Not Recommended for New Designs
ams AG is discontinuing production of this device. Final lifetime buy order must be placed by June 30, 2021. Please contact your local sales representative for further information.

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

Type Description Language
Datasheet Document version 1.20 English

Environmental Documents

Type Description Language
Material Declaration Form MDF_176950017_AS1340A-BTDT-10 English
Material Declaration Form MDF_176950017_AS1340A-BTDM-10 English


Type Description Language
EoL Notification AS1xxx, AS25xx, AS3xxx, AS73211, AS89020, SL900A, TMD4704 (issued 2020-Dec) English

Other Information

Type Description Language
Block Diagram AS1340 Block Diagram English
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