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AS1345D Boost Converter

18V, high efficiency, 500mA coil current, DC-DC step-up converter


  • Input 2.9V to 5V
  • 360mW output up to 18V output
  • 90% efficiency


  • Li-ion applications
  • OLED supply
  • Long battery life

Product parameters

Input Voltage [V] 2.9 to 5.0
Output Voltage [V] 5.0 to 18
Output Current [mA] 40
Efficiency [%] 90
Iq [µA] 25
Architecture Hysteretic
fmax [kHz]
Enable/SHDN [/SHDN] Yes
Reset [POK] Yes
Features Power good output, shutdown, output disconnect in shutdown, \ fixed and adjustable output versions
Package TDFN (2x2)-8 WL-CSP-8 (0.4mm pitch)

General Description

The AS1345 is a hysteretic boost converter, capable of 20mA at 18V output. With efficiencies up to 90%, the device operates from 2.9V to 5V input to generate 5V to 18V output.

This product suits for the following applications:

  • Small and low current demand LCD panels
  • Polymer LEDs (OLED)
  • Cell phones
  • PDAs
  • Readers
  • Mobile terminals
  • 3D shutter glasses


Title Category Headline Buy
AS1345EvalKit Application Board Evaluation Kit for AS1345

Technical Documents

Name Type Description Version Language
AS1345_BD000288_1-00.png Block Diagram AS1345 Block Diagram 1-00 English
AS11xx_AS13xx_AS17xx_AS349x_AS36xx_EN000160_1-00.pdf EoL Notification AS11xx_AS13xx_AS17xx_AS349x_AS36xx (issued 2018-Oct) 1-00 English
AS1111_AS13xx_selected variants_EN000125_1-00.pdf EoL Notification AS1111_AS1312_AS1313_AS1345_AS1376 selected variants (issued 2016-Dec) 1-00 English
AS1345_PD000284_1-00.png Other Product Document AS1345EvalKit Image 1-00 English

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