LP3921 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...
LP3921 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-patible Interface for con
- 2 x 300 mA
- 3 x 150 mA
- 2 x 80 mA 2% (typ.) Output Voltage Accuracy on LDO's Audio
- Fully Differential Amplification
- Ability to drive capacitive loads up to 100 pF