LDS8866

LDS8866 6-Channel Ultra Low Dropout LED Driver FEATURES o Charge pump modes: 1-x, 1.33-x, 1.5-x, 2-x o Ultra low dropout PowerLite™ Current Regulator* o Drives up to 6 LEDs up to 32 mA each o Factory preset current value for each LED bank o PWM brightness control with up to 25,000:1 dimming range at 200 Hz o Power efficiency up to 94% o Low input noise & ripple in all charge pump modes o Low current shutdown mode o Short circuit current limiting o Thermal shutdown protection o Available in 3 x 3 x 0.8 mm 16-pin TQFN package APPLICATION o Keypad and Display Backlight o Cellular Phones o Digital Still Cameras o PDAs and Smartphones DESCRIPTION The LDS8866 is a high efficiency multi-mode fractional charge pump with ultra low dropout voltage that can drive up to six LEDs. Inclusion of a 1.33-x fractional charge pump mode and ultra low dropout TYPICAL APPLICATION CIRCUIT PowerLite™ Current Regulator (PCR) increases device’ efficiency up to 94%. New mode requires no additional exter...