The LP3970 is a multi-function, programmable Power Management Unit, designed especially for advanced application processors. The LP3970 is optimized for low power handheld PMU applications and provides 11 low dropout, low noise linear regulators, two DC/DC magnetic buck regulators, a backup battery charger and 4 GPO’s. A high speed serial interface is included to program individual regulator output voltages as well as on/off control.