AAT2806 - ANALOGIC TECH

AAT2806 Dual High Efficiency Charge Pump

The AAT2806 is a dual charge pump designed to support both the white LED backlight and flash applications for systems operating with lithium-ion/polymer batteries. The backlight charge pump is capable of driving up to four LEDs at a total of 80mA. The current sinks may be operated individually or in parallel for driving higher current LEDs. To maximize power.

Features

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• ChargePump™
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• VIN Range: 2.7V to 5.5V Dual Charge Pump to Support Backlight and Flash LEDs Backlight Charge Pump: — Regulated Current — Four Current Sink Inputs — S2Cwire Brightness Control — Tri-Mode Charge Pump — Maximum 20mA of Current Per Input — Low IQ (50µA) in Light Load Mode Flash Charge Pump: — Regulated Output Voltage — Up to 250mA of Pulsed Current Independent Backlight/Flash Control Low Noise 1MHz Constant Frequency Operation Automatic Soft-Start No Inductors Available in TDFN44-16 Package Applications
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• Color (RGB) Lighting White LED Backlighting White LED.