ACT8770中文资料技领半导体数据手册PDF规格书

GENERAL DESCRIPTION

The patent-pending ACT8770 is a complete, cost-effective, highly efficient ActivePMUTM integrated power management solution that is ideal for a wide range of portable handheld equipment. This device integrates two PWM step-down DC/DC converters, three low dropout linear regulators (LDOs) and a full-featured linear-mode Li+ battery charger into a single, thin, space-saving package.

FEATURES

• Multiple Patents Pending

• Li+ Battery Charger with Integrated MOSFET

    − Auto-Select Charge Current (AC or USB)

    − ON/OFF Control and Status Indication

• Five Integrated Regulators

    − 350mA PWM Step-Down DC/DC

    − 550mA PWM Step-Down DC/DC

    − 250mA High PSRR LDO

    − 250mA High PSRR LDO

    − 250mA High PSRR LDO

• Minimal External Components

• 4x4mm, Thin-QFN (TQFN44-24) Package

    − Only 0.75mm Height

    − RoHS Compliant

APPLICATIONS

• Portable Devices and PDAs

• Digital Media Players

• Battery Operated Devices

• GPS Receivers, etc.