The G5800 is a power management system chip optimized for Mobile phone handsets. It contains seven LDOs, one to power each of the critical Mobile phone sub-blocks. Sophisticated controls are available for power-up during battery charging, keypad interface, and RTC alarm. The G5800 is optimized for maximum battery life, featuring a ground current of only 108A and 187A when the phone is in standby and operation respectively. The G5800 battery charger can be used with lithium ion (Li+) and nickel metal hydride (NiMH) batteries. The G5800 contains three open-drain output switches for LED, alerter and vibrator control. The SIM interface provides the level shift between SIM card and microprocessor. The G5800 is available in 48-pin QFN package. The operating temperature range is from -25C to +85C.