• Compatible With Advanced Applications Processors Requiring Dynamic Voltage Management (DVM)
• 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
• Thermal and Current Overload Protections
• Three Buck Regulators for Powering High-Current Processor Functions or I/Os
  • Programmable VOUT from 0.725 V to 3.3 V
  • Up to 95% Efficiency and 1.6-A Output Current
  • ±3% Output Voltage Accuracy
• Six LDOs for Powering RTC, Peripherals, and I/Os
  • Programmable VOUT of 1 V to 3.3 V
  • ±3% Output Voltage Accuracy
    • LDO_RTC 30 mA
    • LDO1 300 mA
    • LDO2 150 mA
    • LDO3 150 mA
    • LDO4 150 mA
    • LDO5 400 mA

• Smart Phones
• Personal Media Players
• Digital Cameras
• Application Processors
  • Marvell PXA
  • Freescale
  • Samsung

The LP3972 is a multi-function programmable power management unit (PMU) 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 backup 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.