Flexible Lighting Management (Charge Pump, DCDC Step Up, Current Sink, ADC, LDO)

The AS3688 is a highly-integrated CMOS Power and Lighting Management Unit to supply power to LCD-and cameramodules in mobile telephones, and other 1-cell Li+ or 3-cell NiMH powered devices. The AS3688 incorporates one low-power, lowdropout Regulator (LDO), one Step Up DC/DC Converter for white backlight LEDs one high-power Charge Pump for camera Flash LEDs one Analogto- Digital Converter, support for up to 11 current sinks, a two wire serial Interface and control Logic all onto a single device. Output voltages and output currents are fully programmable. The AS3688 is a successor to the austrimicrosystems AS3681 with several additional features (Charge Pump Automatic Up Switching, Extended Timer features, autonomous logarithmic PWM dimming, LED pattern generator, DCDC step up overvoltage protection, improved Charge Pump and a fourth high current sink).
By ams AG
AS3688 's PackagesAS3688 's pdf datasheet



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AS3688 Application circuits
AS3688 circuits
This is one application circuit of AS3688,If you need more circuits,please download AS3688's pdf datasheet.


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