The SC653 is a highly integrated light management unit that provides two low-noise LDOs, a multi-mode high efficiency charge pump, and four programmable LED drivers. Performance is optimized for use in single-cell Liion battery applications. The load and supply conditions determine whether the charge pump operates in 1x, 1.5x, or 2x mode. A programmable fading feature can be enabled to gradually adjust the backlight current, simplifying control software. The low-dropout, low-noise linear regulators can be used for powering a camera module or other peripheral circuits. The SC653 uses the proprietary SemPulse single wire interface. This interface controls all functions of the device, including backlight currents and LDO voltage outputs. The single wire interface minimizes microcontroller and interface pin counts.