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AS3711 Power Management Unit

3 buck DC-DC, 3A DC-DC controller, 8 LDOs, 1.5A linear/DC-DC charger


  • OTP programmable boot sequence
  • 4MHz DC-DC operation
  • Li-ion charger, backlight boost, and current sinks


  • Flexible and fast adaptation to different processors/applications
  • Compact design due to small coils
  • Small PCB area for mobile battery-powered devices

Product parameters

DC-DC Step Up Converters 2x general purpose (voltage or current output)
DC-DC Step Down Converters 1x3A + 1.5A + 2x1A or 3A + 2A + 1.5A
Special LDOs [mA] 2x250
Universal LDOs [mA] 6x300
Current Sinks [mA] 3x40 (HV)
Charge Pump [V/mA]
Audio DAC [dB SNR]
Audio ADC [dB SNR]
Audio Features
General Purpose ADC [bit] 10
Charger Step-down, linear
Customizable Startup Sequences Programmable
Package QFN-56 (7x7)

General Description

The programmable power management unit AS3711 features 3x DC-DC buck converters, 1x 3A buck converter, 2x boost converters, 1.5A Li-ion charger and programmable current bypass switch off the USB input, 8 low noise LDOs and a general purpose ADC. The high level of integration and the 4MHz switching fequencies ensure small system footprint.

This product suits for the following applications:

  • Portable media players
  • Portable navigation devices
  • E-books
  • Mobile internet devices
  • Tablet PCs


Type Description Language
Software Eval SW 1-1-8-0 English

Technical Documents

Type Description Language
Datasheet Document version 2-01 English


Type Description Language
EoL Notification AS2540, AS13xx, AS3668, AS3709, AS371x, AS7620 (issued 2019-Jun) English

Other Information

Type Description Language
Block Diagram AS3711 Block Diagram English
Factsheet Smart Power Management English
Factsheet Smart Power English

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