onsemi CAT3648HV3-GT2

CAT3648 Series 25 mA 5.5 V 1.3 MHz SMT Quad Mode 4-Channel LED Driver - TQFN-16

5.5V Multi-Step Switched Capacitor (Charge Pump) 25mA 4 2.5V 7V QFN , 3mm*3mm*730¦Ìm

CAT3648HV3-GT2 LED DRIVER IC, 2.5 - 5.5 V DC 100MA 16-PIN TQFN

The CAT3648 is a high efficiency quad-mode fractional charge pump that can drive up to four LEDs programmable by a one wire digital interface. The inclusion of a 1.33x fractional charge pump mode increases device efficiency by up to 10% over traditional 1.5x charge pumps with no added external capacitors. Low noise input ripple is achieved by operating at a constant switching frequency which allows the use of small external ceramic capacitors. The multi-fractional charge pump supports a wide range of input voltages from 2.4V to 5.5V. The EN/DIM logic input functions as a chip enable and a digital dimming interface for setting the current in all the LED channels. The 1-wire pulse-dimming interface supports 32 linear steps from full-scale down to zero current. The device is available in the tiny 16-pad TQFN 3mm x 3mm package with a max height of 0.8mm. ON Semiconductors Quad-Mode 1.33x charge pump switching architecture is patented.