LP3921 Datasheet | National Semiconductor

.DataSheet.co.kr LP3921 Battery Charger Management and Regulator Unit with Integrated Boomer Audio Amplifier August 26, 2008 LP3921 Battery Charger Management and Regulator Unit with Integrated Boomer® Audio Amplifier General Description 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 (LDO) voltage regulators and a Boomer audio amplifier. The Li-Ion charger integrates a power FET, reverse current blocking diode, sense resistor with...