LP3921 Description
The LP3921 is a fully integrated charger and multiregulator unit with a fully differential Boomer audio power amplifier designed for CDMA cellular phones. The LP3921 has a high-speed 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
- 23 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 Controlling
- LDO's 7 Low-Noise LDO’s
- 2 x 300 mA