The MAX782CBX is a system-engineered power-supply controller for notebook computers or similar battery-powered equipment. It provides two high-performance step-down (buck) pulse-width modulators (PWMs) for +3.3V and +5V, and dual PCMCIA VPP outputs powered by an integral flyback winding controller. Other functions include dual, lowdropout, micropower linear regulators for CMOS/RTC backup, and three precision low-battery-detection comparators.
Applications
Notebook Computers
Portable Data Terminals
Communicating Computers
Pen-Entry Systems
Feature
♦ Dual PWM Buck Controllers (+3.3V and +5V)
♦ Dual PCMCIA VPP Outputs (0V/5V/12V)
♦ Three Precision Comparators or Level Translators
♦ 95% Efficiency
♦ 420µA Quiescent Current;
70µA in Standby (linear regulators alive)
♦ 5.5V to 30V Input Range
♦ Small SSOP Package
♦ Fixed Output Voltages Available:
3.3 (standard)
3.45 (High-Speed Pentium™)
3.6 (PowerPC™)
