A8442 Datasheet | AiT Semiconductor

AiT Semiconductor Inc. .ait-ic. 80mA 4-CHANNEL CHARGE PUMP WHITE LED DRIVER WITH LOW DROPOUT CURRENT SOURCE DESCRIPTION Features The A8442 is a high performance white LED driver. It integrates current sources and automatic mode selection charge pump. The part maintains the high efficiency by utilizing an x1/x1.5 fractional charge pump and low dropout current sources. The small equivalent x1 mode open loop resistance and ultra-low dropout voltage of current source extend the operating time of x1 mode and optimize the efficiency of Li-ion battery in white LED applications. The A8442 supports up to 4 white LEDs and regulates a constant current for uniform intensity. The part...