Document
Features
• 300mA/1.8V/2.5V Switching Regulator for Baseband Supply • 2.8V/80mA LDO for Baseband Pad Supply • Two 130mA/2.8V Low-noise, High PSRR RF LDO Voltage Regulators • 130mA/2.7V/2.8V Baseband Low-noise, High PSRR Analog LDO Regulator • Ultra Low-power RTC LDO Voltage Regulator • Backup Battery Charger • Li-Ion or Li-polymer Battery Charger Controller • Buzzer and Vibrator Drivers • Charging LED Driver • Power Management Start-up Controller and Reset Generation • SIM Level Shifters and SIM 10mA/1.8V/2.8V LDO Voltage Regulator • Ultra-low Sleep Mode Current Consumption (17 µA typ) • Over and Under Voltage Protections • Over Temperature Protection • Low-power Mode and Sleep Mode • Straight and Easy Interfacing to any Baseband Controller • Small 5x5mm, Forty-nine Ball FBGA Package
Description
The AT73C202 is a low-cost, ultra low-power, power and battery management IC designed to interface directly with state-of-the-art cellular phones, for example .