The LP3921 is a fully integrated charger and multi-regulator unit with a fully differential Boomer audio power amplifier designed for CDMA cellular phones.
Key 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 Audio output LDO's 7 Low-Noise LDO’s.
2 x 300 mA.
3 x 150 mA.
2 x 80 mA 2% (typ. ) Output Voltage Accuracy on LDO's Audio.
Full PDF Text Transcription for LP3921 (Reference)
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LP3921. For precise diagrams, and layout, please refer to the original PDF.
www.DataSheet.co.kr LP3921 Battery Charger Management and Regulator Unit with Integrated Boomer Audio Amplifier August 26, 2008 LP3921 Battery Charger Management and Regu...
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o 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 current monitor output, and requires only
LP3921 Datasheet
