General Description

Micrel’s MIC2570 is a micropower boost switching regulator that operates from two alkaline, two nickel-metal-hydride cells, or one lithium cell.

Features

• Operates from a two-cell supply 1.3V to 15V operation

• 130µA typical quiescent current

• Complete regulator fits 0.6 in2 area

• 2.85V/3.3V/5V selectable output voltage (MIC2570-1)

• Adjustable output up to 36V (MIC2570-2)

• 1A current limited pass element

• Frequency synchronization input

• 8-lead SOIC package

Applications

• LCD bias generator

• Glucose meters

• Single-cell lithium to 3.3V or 5V converters

• Two-cell alkaline to ±5V converters

• Two-cell alkaline to –5V converters

• Battery-powered, hand-held instruments

• Palmtop computers

• Remote controls

• Detectors

• Battery Backup Supplies