LP8725 Datasheet | National Semiconductor

Description This device is a multi-function, programmable Power Management Unit (PMU), optimized for sub block power solutions. This device integrates two highly efficient 600 m A step-down DC/DC converters configurable up to 800 m A load with Dynamic Voltage Scaling (DVS) through an I2C, two low noise analog LDOs, three digital LDOs for up to 300 m A load current each, two Low Input Low Output (LILO) regulators and an I2C-patible serial interface to allow a host controller access to the internal control registers. The device also features programmable power-on sequencing. LDO regulators provide high PSRR and low noise ideally suited for supplying power to both analog and digital loads. The device can be configured either as a Sub_PMU for modules (for example, camera/multimedia modules) or as a stand-alone PMU that powers the processor itself. “Notice: This document is not a datasheet. For more information regarding this product or to order samples please contact your local National Semiconductor sales office or visit http://.national./support/dir.html. Features - Two High Efficiency Step-Down DC/DC Convertors, - - - - - - IOUT = 600 m A, with a 4MHz switching frequency using small 1µH inductors, with options up to 800 m A. Three digital LDOs for up to 300 m A load current each Two low-noise analog 300 m A LDOs Two low-input low output regulators, IOUT = 300 m A I2C-patible interface for the controlling of internal registers Adjustable startup sequence through I2C or configuration Thermal shutdown protection Key Specifications - 190 m V typ. Dropout Voltage on digital LDOs @ 300 m A - 2% typ. Output Voltage Accuracy on digital and analog LDOs - 10 µVrms Output Noise on analog LDOs - ±2% typ. Output Voltage Bucks up to 93% efficiency - 30-bump micro SMD package (0.5 mm pitch) Applications - Multi-media Processors - Portable Handheld Products .. © 2009 National Semiconductor Corporation .national. LP8725 PRODUCT BRIEF Typical Application...