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.

Not Recommended for New Designs
ams AG is discontinuing production of this device.

This product suits for the following applications:

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

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
EoL Notification AS252x, AS36xx, AS37xx_AS3956 (issued 2019-Sep) English

Other Information

Type Description Language
Block Diagram AS3711 Block Diagram English