General Description
The MAX783 is a system-engineered power-supply controller for notebook computers or similar battery-powered equipment. It provides two high-performance step-down (buck) pulsewidth modulators (PWMs) for +3.3V/+5V and dual PCMCIA VPP outputs powered by an integral flyback winding controller. Other functions include dual, low-dropout, micropower linear regulators for CMOS/RTC back up, and two precision lowbattery-detection comparators.

Features
♦ Dual PWM Buck Controllers (+3.3V and +5V)
♦ Dual PCMCIA VPP Outputs (0V/3.3V/5V/12V)
♦ Two Precision Comparators or Level Translators
♦ Power-Ready Status Output (RDY5)
♦ 95% Efficiency
♦ Optimized for 6-Cell Applications
♦ 420µA Quiescent Current;
    70µA in Standby (linear regulators alive)
    25µA Shutdown Current
♦ 5.5V to 30V Input Range
♦ Small SSOP Package
♦ Fixed Output Voltages Available:
    3.3V (standard)
    3.45V (High-Speed Pentium™)
    3.6V (PowerPC™)

Applications
    Notebook Computers
    Portable Data Terminals
    Communicating Computers
    Pen-Entry Systems