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LTC1522

Part Number	LTC1522
Manufacturer	Linear Technology
Description	Micropower/ Regulated 5V Charge Pump DC/DC Converter
Published	Mar 27, 2005
Detailed Description	LTC1522 Micropower, Regulated 5V Charge Pump DC/DC Converter FEATURES s s s s s s s DESCRIPTION The LTC®1522 is a micro...
Datasheet	LTC1522 PDF File

Overview

LTC1522 Micropower, Regulated 5V Charge Pump DC/DC Converter FEATURES s s s s s s s DESCRIPTION The LTC®1522 is a micropower charge pump DC/DC converter that produces a regulated 5V output from a 2.
7V to 5V input supply.
Extremely low supply current (6µA typical with no load, < 1µA in shutdown) and low external parts count (one 0.
22µF flying capacitor and two 10µF capacitors at VIN and VOUT) make the LTC1522 ideally suited for small, light load battery-powered applications.
Typical efficiency (VIN = 3V) exceeds 75% with load currents between 50µA and 20mA.
Modulating the SHDN pin keeps the typical efficiency above 75% with load currents all the way down to 10µA.
The LTC1522 has thermal shut...

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