Four White LED Backlight Driver ADM8843 FEATURES Drives 4 LEDs from a 2.
6 V to 5.
5 V (Li-Ion) input supply 1×/1.
5×/2× fractional charge pump to maximize power efficiency 0.
3% typical LED current matching Up to 88% power efficiency over Li-Ion range Powers main and sub display LEDs with individual shutdown Package footprint only 9 mm2 (3 mm × 3 mm) Package height only 0.
55 mm Low power shutdown mode Shutdown function Soft start limiting in-rush current APPLICATIONS Cellular phones with main and sub displays White LED backlighting Camera flash/strobes and movie light applications Micro TFT color displays DSC PDAs GENERAL DESCRIPTION The ADM8843 uses charge pump technology to provide the powe...

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