MAX781 Datasheet (Maxim) - PDA/Hand-Held Computer Power Controller

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

MAX781 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 Outp