General Description

The ultra-small MAX828/MAX829 monolithic, CMOS charge-pump inverters accept input voltages ranging from +1.5V to +5.5V. The MAX828 operates at 12kHz, and the MAX829 operates at 35kHz. Their high efficiency(greater than 90% over most of the load-current range) and low operating current (60µA for the MAX828) make these devices ideal for both battery-powered and board level voltage-conversion applications.

Features

♦5-Pin SOT23-5 Package

♦95% Voltage Conversion Efficiency

♦Inverts Input Supply Voltage

♦60µA Quiescent Current (MAX828)

♦+1.5V to +5.5V Input Voltage Range

♦Requires Only Two Capacitors

♦25mA Output Current

Applications

Small LCD Panels

Cell Phones

Medical Instruments

Handy-Terminals, PDAs

Battery-Operated Equipment