Monolithic Power Systems MP3331 synchronous boost flash LED driver with I²C interface is designed as a highly efficient 2A, single flash LED driver in a very compact package for high-resolution camera phones. The MP3331 flash LED driver helps improve image and video quality in low-light environments. MP3331 operates in a 1/2/3/4MHz synchronous DC-DC boost converter to deliver an optimized solution for smaller PCB spaces with higher efficiency. Features include a standard I²C interface, single LED channel, rich protection modes, and high power density and performances. The supports flash/assist light/torch/indicator/5V DC modes modes. The cathode of the flash LED is referenced to GND, which improves thermal performance. Available in a WLCSP9 1.7mm x 1.7mm package, the MP3331 synchronous boost flash LED driver is ideally suited for camera phone LED flash, tablets, and digital still cameras.