General Description
The RT9511 is a fully integrated low cost solution with a single-cell Li-Ion battery charger and two high efficiency step-down DC/DC converters ideal for portable applications.

Features
● Battery Charger
    ► Automatic Input Supplies Selection
    ► 18V Maximum Rating for AC Adapter
    ► Integrated Selectable 100mA and 500mA USB Charge Current
    ► Internal Integrated Power FETs
    ► Charge Status Indicator
    ► External Capacitor Programmable Safety Timer
    ► Under Voltage Protection
    ► Over Voltage Protection
    ► Automatic Recharge Feature
    ► Battery Temperature Monitoring
    ► Thermal Feedback Optimizing Charge Rate
    ► Power Path Controller
● Step-Down DC/DC Converter
    ► Adjustable Output from 0.6V to VIN
    ► 1A Output Current
    ► 95% Efficiency
    ► No Schottky Diode Required
    ► 1.5MHz Fixed-Frequency PWM Operation
● Small 24-Lead WQFN Package
● RoHS Compliant and Halogen Free

Applications
● MP3/MP4 Player
● GPS
● Digital Photo Frame
● Hand held Device