GENERAL DESCRIPTION
The patent-pending ACT8740 is a complete, cost effective, highly-efficient ActivePMUTM power management solution that is ideal for a wide range of portable handheld equipment. This device integrates one PWM step-down DC/DC converter, one PWM step-up DC/DC converter with over-voltage protection (OVP), three low dropout linear regulators (LDOs) and a full-featured linear-mode Li+ battery charger into a single, thin, space-saving package. An I2C Serial Interface provides programmability for the DC/DC converters, LDOs and battery charger.
   
FEATURES
• Multiple Patents Pending
• Li+ Battery Charger with Integrated MOSFET
    − Programmable Charge Current up to 1A
    − ON/OFF Control
• Five Integrated Regulators
    − 350mA PWM Step-Down DC/DC
    − Step-Up DC/DC with OVP for WLED Bias
    − 350mA Low Noise LDO
    − 250mA Low Noise LDO
    − 250mA Low Noise LDO
• I2CTM Compatible Serial Interface
    − Programmable Output Voltages
    − Configurable Operating Modes
• Minimal External Components
• 4x4mm, Thin-QFN (TQFN44-24) Package
    − Only 0.75mm Height
    − RoHS Compliant
   
APPLICATIONS
• Portable Devices and PDAs
• Wireless Handhelds
• DMB Enabled Devices
• GPS Receivers, etc.