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AS1376 Linear Regulator

1A, low input voltage, ultra-low dropout voltage with low quiescent current LDO


  • Less internal voltage losses and minimized self-heating
  • Supports a variety of low voltage end applications
  • Ideal as follower of a buck converter
  • Independent bias supply ensures more robustness due to heavy load changes
  • Supports a variety of high load applications


  • Ultra-low dropout voltage: <120mV @ 1A load
  • Output voltage from 0.5V to 3.3V
  • Input voltage from 0.7V to 3.6V
  • Bias supply voltage from 2.5V to 5.5V
  • Maximum output current up to 1A

Product parameters

Output [#] 1
Accuracy [%] ± 1.5
Output Current [mA] 1000
Feature Ultra-low dropout \ Very low input/output voltage range
Output Voltage [V] 0.5 to 3.3
Dropout Voltage @ Max. Current [mV] 105
Supply Current [µA] 6.5 (Vin) \ 60 (Vbias)
Supply Voltage [V] 0.7 to 3.6 (Vin) \ 2.5 to 5.5 (Vbias)
Package WL-CSP-6 \ TDFN-8 (2x2)

General Description

The AS1376 is a dual supply rail linear regulator designed to deliver 1A of load current while consuming only 67μA (typ) of ground current. In the typical post regulation application VBIAS is directly connected to the main input supply (range 2.5V - 5.5V) and Vin is supplied by the output voltage of a host DC-DC converter (range 0.7V - 4.5V).

This product suits for the following applications:

  • Powering cordless and mobile phones
  • MP3 players
  • CD and DVD players
  • PDAs
  • Handheld computers
  • Digital cameras
  • Any other hand-held and/or battery-powered device

Technical Documents

Name Type Description Version Language
AS1376_BD000291_1-00.png Block Diagram AS1376 Block Diagram 1-00 English
AS1376_DS000351_3-00.pdf Datasheet Document version 2-06 3-00 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

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