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MAX38888 Datasheet 0.5A/2.5A Reversible Buck/Boost Regulator

Manufacturer: Maxim Integrated (now Analog Devices)

General Description

The MAX38888 is a storage capacitor or capacitor bank backup regulator designed to efficiently transfer power between a storage element and a system supply rail in reversible buck and boost operations using the same inductor.

When the main supply is present and above the minimum system supply voltage, the regulator operates in buck mode and charges the storage element at up to 500mA peak inductor current.

Once the storage element is charged, the circuit draws only 2.5µA of current while it maintains the super capacitor or other storage element in its ready state.

Overview

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MAX38888 2.5V–5.0V, 0.5A/2.