AS3687 Datasheet (austriamicrosystems) - Flexible Lighting Management

AS3687, Flexible Lighting Management

The AS3687/87XM is a highly-integrated CMOS Lighting Management Unit for mobile telephones, and other 1-cell Li+ or 3-cell NiMH powered devices.

The AS3687/87XM incorporates one Step Up DC/DC Converter for white backlight LEDs, one low noise Charge Pump for indicator- or RGB- LEDs, LED test circuit

AS3687 Features

* High-Efficiency Step Up DC/DC Converter

* Up to 25V/50mA for White LEDs

* Programmable Output Voltage with External Resistors and Serial Interface

* Overvoltage Protection

* High-Efficiency Low Noise Charge Pump

* 1:1, 1:1.5, and 1:2 Mode

* Automatic