LP3931 Datasheet | National Semiconductor

August 2004 .. LP3931 Dual RGB LED Driver with High Current Boost DC-DC Converter LP3931 Dual RGB LED Driver with High Current Boost DC-DC Converter General Description The LP3931 is a RGB LED driver with high current boost DC-DC converter designed for portable wireless applications. It contains 2 sets of RGB LED drivers that are PWMdriven with programmable color, intensity and blinking patterns. They additionally feature a FLASH function to support picture taking with camera-enabled cellular phones. An efficient magnetic boost DC/DC converter provides the required bias, operating from a single Li-Ion battery. The DC/DC converter output voltage is user programmable for...