Description
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.
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 Up Switching (can be disabled and 1:2 mode can be blocked).
- Output Current up to 150mA.
- Efficiency up to 95%.
- Only 4 External Capacitors Required: 2 x 500nF Flying Capacito.
AS3687 Datasheet
