GENERAL DESCRIPTION

The patent-pending ACT5830 is a complete, integrated power management solution that is ideal for mid-high and mobile phones. This device integrates a linear Li+ battery charger with an internal power MOSFET, a high efficiency 350mA DC/DC converter, eight low dropout linear regulators, a reset output, and two N-Channel open drain switches, and an I2C Serial Interface to achieve flexibility for programming LDO outputs and individual on/off control.

FEATURES

• Multiple Patents Pending

• 350mA, PWM Step-Down DC/DC Converter

• Eight I2C-Programmable, Low Noise LDOs

    − Three Optimized for RF Section Power

    − Five Optimized for BB Section Power

• Li+ Battery Charger with Integrated MOSFET

    − Charger Current Monitor Output (VICHG)

    − Charger ON/OFF Control Pin

• Two N-channel Open Drain Switches

• Minimal External Components

• I2CTM Serial Interface

    − Configurable Operating Modes

• AC-OK and RESET Outputs

• 5×5mm, Thin-QFN (TQFN55-40) Package

    − Only 0.75mm Height

    − RoHS Compliant

APPLICATIONS

• GSM or CDMA Mobile Phones