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LM140QML

www.ti.com

SNVS382B–FEBRUARY2006–REVISEDMAY2013

LM140QMLThreeTerminalPositiveRegulators

CheckforSamples:LM140QML

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FEATURES

DESCRIPTION

Themonolithic3-terminalpositivevoltageregulators

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•CompleteSpecificationsat1.0Aand0.5A

employinternalcurrent-limiting,thermalshutdown

Loads

andsafe-areacompensation,makingthem

•NoExternalComponents

essentiallyindestructible.Ifadequateheatsinkingis

•InternalThermalOverloadProtection

provided,theycandeliverover0.5Aoutputcurrent.

Theyareintendedasfixedvoltageregulatorsina

•InternalShortCircuitCurrent-Limiting

widerangeofapplicationsincludinglocal(on-card)

•OutputTransistorSafe-AreaCompensation

regulationforeliminationofnoiseanddistribution

problemsassociatedwithsingle-pointregulation.In

additiontouseasfixedvoltageregulators,these

devicescanbeusedwithexternalcomponentsto

obtainadjustableoutputvoltagesandcurrents.

Considerableeffortwasexpendedtomaketheentire

seriesofregulatorseasytouseandminimizethe

numberofexternalcomponents.Itisnotnecessaryto

bypasstheoutput,althoughthisdoesimprove

transientresponse.Inputbypassingisneededonlyif

theregulatorislocatedfarfromthefiltercapacitorof

thepowersupply.

ConnectionDiagram

Figure1.SteelMetalCanTO-39Package(NDT)Figure2.TO-3MetalCan(K)

BottomViewBottomView

SeePackageNumberNDT0003ASeePackageNumberK0002C

Thesedeviceshavelimitedbuilt-inESDprotection.Theleadsshouldbeshortedtogetherorthedeviceplacedinconductivefoam

duringstorageorhandlingtopreventelectrostaticdamagetotheMOSgates.

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Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof

TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.

2Alltrademarksarethepropertyoftheirrespectiveowners.

PRODUCTIONDATAinformationiscurrentasofpublicationdate.

Copyright©2006–2013,TexasInstrumentsIncorporated

ProductsconformtospecificationsperthetermsoftheTexas

Instrumentsstandardwarranty.Productionprocessingdoesnot

necessarilyincludetestingofallparameters.

Product specificaties