General Description

Micrel’s MIC2571 is a micropower boost switching regulator that operates from one alkaline, nickel-metal-hydride cell, or lithium cell.

The MIC2571 accepts a positive input voltage between 0.9V and 15V. Its typical no-load supply current is 120µA.

Features

• Operates from a single-cell supply 0.9V to 15V operation

• 120µA typical quiescent current

• Complete regulator fits 0.3 in2 area

• 2.85V/3.3V/5V selectable output voltage (MIC2571-1)

• Adjustable output up to 36V (MIC2571-2)

• 1A current limited pass element

• Frequency synchronization input

• 8-lead MSOP package

Applications

• Pagers

• LCD bias generator

• Battery-powered, hand-held instruments

• Palmtop computers

• Remote controls

• Detectors

• Battery Backup Supplies