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2022-09-24 23:33:15
MAX619 - Regulated 5V Charge Pump DC-DC Converter
The MAX619 step-up charge-pump DC-DC converter provides a regulated 5V±4% output at 50mA temperature. The input voltage range is 2V to 3.6V (two batteries). The complete MAX619 circuit fits into less than 0.1 square inches of board space because only four external capacitors are required: two 0.22mF flying capacitors and 10mF on the input and output capacitors. Low operating current (150mA max) and low shutdown supply current (less than 1mA leakage current) make this device ideal for small, portable, battery-powered applications. When turned off, the load disconnects the input. The MAX619 is available in 8-pin DIP and SO packages.
Application Two Battery to 5V Conversion Local 3V to 5V Conversion Portable Instruments and Handheld Terminals Microprocessor-Based Systems Battery Powered
5V Flash programming Minimal component DC-DC converters Remote data acquisition systems Compact 5V op amps Powering from backup lithium batteries Regulated 5V power switching to MOSFET drive voltages Low voltage systems