LP3921 Datasheet (National Semiconductor) - Battery Charger Management/Regulator

LP3921, Battery Charger Management/Regulator

The LP3921 is a fully integrated charger and multi-regulator unit with a fully differential Boomer audio power amplifier designed for CDMA cellular phones.

The LP3921 has a highspeed serial interface which allows for the integration and control of a Li-Ion battery charger, 7 low-noise low-dropout (L

LP3921 Features

* Charger

* DC adapter or USB input

* Thermally regulated Charge Current

* Under Voltage Lockout

* 50 to 950 mA Programmable Charge Current 3.0V to 5.5V Input Voltage Range Thermal shutdown I2C-compatible Interface for controlling Charger, LDO outputs and enabling