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AS1313 DC-DC Step-Down Converter

Ultra low 1μA quiescent current DC-DC step-down converter


  • High efficiency up to 95%
  • Low quiescent current of typical 1µA
  • 6-pin WL-CSP with 0.4mm pitch


  • Extended battery life
  • Less power consumption
  • Cost effective, small package

Product parameters

Input Voltage [V] 2.4 to 5.5
Output Voltage [V] 1.2 to 3.6
Output Current [mA] 50
Efficiency [%] 96
Iq [µA] 1
Architecture Hysteretic, async.
fmax [kHz] <500
Enable/SHDN [/SHDN] Yes
Reset [POK] No
Features Optimized for light loads
Package 8-pin TDFN (2x2) and a 6-pin WL-CSP

General Description

The AS1313 has a load current capability of 150mA with an ultra-low quiescent current of 1µA hysteretic DC-DC step-down converter. The AS1313 is optimized for light loads and with efficiencies of up to 95%. In order to save power the AS1313 features a shutdown mode, where it draws less than 100nA. In shutdown mode the battery is not connected to the output. In light load operation, the device enters an idle mode when most of the internal operating blocks are turned off in order to save power. This mode is active approximately 100μs after a current pulse provided that the output is in regulation. The AS1313 is available in a 8-pin (2x2) MLPD and a 0.4mm pitch 6-pin WL-CSP package.

This product suits for the following applications:

  • Blood glucose meters
  • Remote controls
  • Hearing aids
  • Wireless mouse or any light-load application


Title Category Headline Buy
AS1313EvalKit Application Board Evaluation Kit for AS1313

Technical Documents

Name Type Description Version Language
AS1313_BD000281_1-00.png Block Diagram AS1313 Block Diagram 1-00 English
AS1313_DS000454_1-00.pdf Datasheet Document version 1-43 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
AS1313_PD000279_1-00.png Other Product Document AS1313EvalKit Image 1-00 English
AS1313_UG000296_1-00.pdf User Guide Standard board EK 1-00 English

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