ACT  -  系列元器件数据手册
ACT5830  -  Twelve Channel Integrated Power Management IC for Mobile Handsets  -  Active Semi  -  电源管理

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
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.
The charger is a complete, thermally-regulated, stand-alone single-cell linear Li+ battery charger that incorporates an internal power MOSFET for constant-current/constant-voltage control. The charger includes a variety of value-added features, and it is programmable via the I2C-Interface to control charging current, termination voltage, along with safety features and operation modes.
The ACT5830 is available in a compact 5mm x 5mm 40-pin Thin-QFN package that is just 0.75mm thin.