MAX877 Datasheet

MAX877 5V/3.3V/3V/Adjustable-Output / Step-Up/Step-Down DC-DC Converters

The MAX877/MAX878/MAX879 are pulse-skipping, stepup/step-down DC-DC converters that provide a regulated output from inputs both above and below the output. They require only three external components—an inductor (typically 22µH) and two filter capacitors. The MAX877 delivers a regulated 5V output fr.

Features

o Regulates from Inputs Above & Below the Output o 1V to 6.2V Supply-Voltage Range o Internal 1A Active Rectifier with Input-to-Output Disconnect in Shutdown o Up to 210mA Load Currents, Guaranteed o 85% Efficiency o Only 3 External Components o Adjustable Current Limit o 195µA Quiescent Supply Current o 20µA Shutdown Supply Current o 3V/3.3V/5V and Adjustable Output Voltage Versions o Available in 8-Pin DIP and SO Packages _______________General Description The MAX877/MAX878/MAX879 are pulse-skipping, stepup/step-down DC-DC converters that provide a regulated output from inputs both above an.