ON SEMICONDUCTOR - NCP5008 NCP5009 Backlight LED Boost Driver handbook
The NCP5008/NCP5009 is a high efficiency boost converter operating in current loop control mode to drive Light Emitting Diode. The current mode regulation allows a uniform brightness of the LEDs. It features a 2.7 to 6.0 V input voltage range, output voltage from Vbat to 15 V, 3.0 μA quiescent supply current, automatic LEDs current matching, no external sense resistor, dimming function, programmable or automatic current output mode, local or remote control facility, photo transistor sense feedback input, inductor based converter for high efficiency, low noise DC/DC converter, and all pins are fully ESD protected.