CAT3647 Datasheet | Catalyst Semiconductor

.. 3-Channel Ultra High Efficiency Quad-Mode™ LED Driver with 32 Dimming Levels Features - - - - - - - - - - - - - - - High efficiency 1.33x charge pump Quad-mode charge pump: 1x, 1.33x, 1.5x, 2x Drives up to 3 LEDs at 30mA each 1-wire EZDim™ 32 linear steps Power efficiency up to 92% Low noise input ripple in all modes “Zero” current shutdown mode Soft start and current limiting Short circuit protection Thermal shutdown protection RoHS-pliant 16-pad TQFN package LCD Display Backlight Cellular Phones Digital Still Cameras Handheld Devices DESCRIPTION The CAT3647 is a high efficiency quad-mode fractional charge pump that can drive up to three LEDs programmable...