Texas Instruments LM2700 Handleiding

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LM2700

www.ti.com

SNVS152C–MAY2001–REVISEDMARCH2013

LM2700600kHz/1.25MHz,2.5A,Step-upPWMDC/DCConverter

CheckforSamples:LM2700

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FEATURES

DESCRIPTION

TheLM2700isastep-upDC/DCconverterwitha

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•3.6A,0.08Ω,InternalSwitch

3.6A,80mΩinternalswitchandpinselectable

•OperatingInputVoltageRangeof2.2Vto12V

operatingfrequency.Withtheabilitytoproduce

•InputUndervoltageProtection

500mAat8VfromasingleLithiumIonbattery,the

LM2700isanidealpartforbiasingLCDdisplays.The

•AdjustableOutputVoltageupto17.5V

LM2700canbeoperatedatswitchingfrequenciesof

•600kHz/1.25MHzPinSelectableFrequency

600kHzand1.25MHzallowingforeasyfilteringand

Operation

lownoise.Anexternalcompensationpingivesthe

•OverTemperatureProtection

userflexibilityinsettingfrequencycompensation,

whichmakespossibletheuseofsmall,lowESR

•Small14-LeadTSSOPorWSONPackage

ceramiccapacitorsattheoutput.TheLM2700

featurescontinuousswitchingatlightloadsand

APPLICATIONS

operateswithaswitchingquiescentcurrentof2.0mA

•LCDBiasSupplies

at600kHzand3.0mAat1.25MHz.TheLM2700is

availableinalowprofile14-leadTSSOPpackageor

•HandheldDevices

a14-leadWSONpackage.

•PortableApplications

•GSM/CDMAPhones

•DigitalCameras

TypicalApplicationCircuit

Figure1.600kHzOperation

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Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof

TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.

2Alltrademarksarethepropertyoftheirrespectiveowners.

PRODUCTIONDATAinformationiscurrentasofpublicationdate.

Copyright©2001–2013,TexasInstrumentsIncorporated

ProductsconformtospecificationsperthetermsoftheTexas

Instrumentsstandardwarranty.Productionprocessingdoesnot

necessarilyincludetestingofallparameters.

Product specificaties