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AS3675 Lighting Management Unit

Flexible lighting management unit with charge pump, DC-DC, 13 current sinks


  • High-efficiency DC-DC step-up converter
  • High-efficiency high-power charge pump
  • 13 fully programmable current sinks (8-bit)
  • PWM generation and LED pattern generator


  • Up to 16V/55mA (or 25V/35mA) for white LEDs
  • Output current up to 300mA/500mA pulsed
  • Low voltage and 3 high voltage current sinks
  • Autonomous logarithmic up/down dimming

Product parameters

# of Current Sinks [HV] 3
- [LV] 10
CP [Max. I (mA)] 300
DC-DC [Max. I (mA)] Controller
Max. Vled [V] Controller
Features [LDOs (#)] 1
- [Auto ALS]
- [DLS]
- [RGB Pattern] Yes
- [Dimming] Yes
- [Auto-In] Yes
- [LED Test] Yes
Flash [Support] Yes
- [Max. I (mA)] 300
Package WL-CSP30 (3x2.5)-0.5

General Description

The AS3675 is a highly-integrated CMOS power and lighting management unit for mobile phones. The AS3675 incorporates one DC-DC step-up converter for white backlight LEDs, one high-power charge pump, one analog-to-digital converter and 13 current sinks. The RGB and white LEDs can be controlled and synchronized by an audio input.

This product suits for the following applications:

  • Mobile phones
  • Portable DVD / TV player
  • Portable learning toys
  • Portable navigation devices
  • Portable medical consumer devices


Type Description Language
Software Install CD English

Technical Documents

Type Description Language
Block Diagram AS3675 Block Diagram English
Datasheet Document version 1v3 English

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