The LP3972 is a multi-function programmable Power Management Unit designed especially for advanced application processors. The LP3972 is optimized for low-power handheld applications and provides six low-dropout low-noise linear regulators, three DC/DC magnetic buck regulators, a back-up battery charger, and two GPIOs. A high-speed serial interface is included to program individual regulator output voltages as well as on and off control.
Compatible With Advanced Applications Processors Requiring DVM (Dynamic Voltage Management)
Three Buck Regulators for Powering High-Current Processor Functions or I/Os
Six LDOs for Powering RTC, Peripherals, and I/Os
Backup Battery Charger With Automatic Switch for Lithium-Manganese Coin Cell Batteries and Super Capacitors
I2C Compatible High-Speed Serial Interface
Software Control of Regulator Functions and Settings