Texas Instruments LP3918 Battery Charge Management and Regulator Unit LP3918TLX-A/NOPB

The LP3918 Battery Charge Management and Regulator Unit from Texas Instruments is designed for mobile applications, particularly CDMA cellular phones. It features a fully integrated Li-Ion battery charger with programmable charge current ranging from 50mA to 950mA, and supports USB charging modes. The device operates within an input voltage range of 3.0V to 5.5V and includes seven low-dropout (LDO) voltage regulators, providing outputs of 300mA and 150mA with a typical dropout voltage of 200mV. The LP3918 incorporates thermal regulation for efficient charging and includes an I2C compatible interface for controlling LDO outputs and monitoring status. It also features thermal shutdown and under-voltage lockout protections. The compact 25-bump DSBGA package measures 2.5mm x 2.5mm, making it suitable for space-constrained designs. This product is ideal for applications requiring reliable battery management and power regulation in handheld devices.