MAX781 - Maxim

MAX781 PDA/Hand-Held Computer Power Controller

The MAX781 is a system-engineered power-supply controller for subnotebook computers, PDAs, or similar battery-powered equipment. It provides high-performance, step-down (buck), pulse-width modulated (PWM) control for generating +3.3V and constant-current battery charging. Dual PCMCIA VPP outputs are powered by a regulated flyback winding. Five high-side gate.

Features

o +3.3V Step-Down Controller o Dual PCMCIA 2.0 Compatible VPP Outputs (0V/3.3V/5V/12V) o Digitally Adjustable Switching Current Source for Battery Charging o 5 High-Side Switch Gate-Driver Outputs o SPI Serial Interface o 300kHz Switching Frequency o Oscillator SYNC Input o 2.5V ±1.5% Reference Output o 36-Pin SSOP Package MAX781 ________________________Applications Subnotebook Computers PDAs Communicating Computers Handy-Terminals ______________Ordering Information PART MAX781CBX MAX781EBX TEMP. RANGE 0°C to +70°C -40°C to +85°C PIN-PACKAGE 36 SSOP 36 SSOP ________________________________.