LP3913 - National Semiconductor

LP3913 Power Management

The LP3913 is a programmable system power management unit that is optimized for Flash Memory based Portable Media Players. The LP3913 incorporates 2 low-dropout LDO voltage regulators, 3 integrated Buck DC/DC converters with Dynamic Voltage Scaling (DVS), a 4-channel 8-bit A/D converter, and a dual source Li-Ion/polymer battery charger. The charger has the c.

Features

■ 2 low-dropout regulators -- LDO1 is used for general purpose applications, LDO2 is used for low-noise analog applications. Both LDOs have programmable output voltages. Green and Red LED charger status drivers 4-channel 8-bit dual slope a/d converter 3 High-efficiency DVS Buck converters 400 kHz I2C compatible interface Linear constant-current / constant-voltage charger for single cell lithium-ion batteries USB and Adapter charging System power supply management 6x6x0.8mm 48 LLP package Voltage and thermal supervisory circuits Continuous battery voltage monitoring Interrupt Request output wit.