LP3972

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LP3972 SNVS468L – SEPTEMBER 2006 – REVISED NOVEMBER 2015 LP3972 Power Management Unit for Advanced Application Processors 1 Features 1 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 2 Applications Smart Phones Personal Media Players Digital Cameras Application Processors – Marvell PXA – Freescale – Samsung 3 Description 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 progra...