R1240WR22.4 kWINPUTOUTPUTADJUSTLM317VIRS0.2WProductFolderSample &BuyTechnicalDocumentsTools &SoftwareSupport &CommunityLM317SLVS044WSEPTEMBER1997REVISEDOCTOBER2014LM3173-TerminalAdjustableRegulator1Features3DescriptionTheLM317deviceisanadjustablethree-terminal1OutputVoltageRangeAdjustablepositive-voltageregulatorcapableofsupplyingmoreFrom1.25Vto37Vthan1.5Aoveranoutput-voltagerangeof1.25VtoOutputCurrentGreaterThan1.5A37V.ItrequiresonlytwoexternalresistorstosettheInternalShort-CircuitCurrentLimitingoutputvoltage.Thedevicefeaturesatypicallineregulationof0.01%andtypicalloadregulationofThermalOverloadProtection0.1%.Itincludescurrentlimiting,thermaloverloadOutputSafe-AreaCompensationprotection,andsafeoperatingareaprotection.Overloadprotectionremainsfunctionalevenifthe2ApplicationsADJUSTterminalisdisconnected.ATCASolutionsDeviceInformation(1)DLP:3DBiometrics,HyperspectralImaging,PARTNUMBERPACKAGE(PIN)BODYSIZE(NOM)OpticalNetworking,andSpectroscopySOT(4)6.50mm3.50mmDVRandDVSTO-220(3)10.16mm8.70mmDesktopPCLM317TO-220(3)10.16mm8.59mmDigitalSignageandStillCameraTO-263(3)10.18mm8.41mmECGElectrocardiogram(1)Forallavailablepackages,seetheorderableaddendumatEVHEVCharger:Level1,2,and3theendofthedatasheet.ElectronicShelfLabel4Battery-ChargerCircuitEnergyHarvestingEthernetSwitchFemtoBaseStationFingerprintandIrisBiometricsHVAC:Heating,Ventilating,andAirConditioningHigh-SpeedDataAcquisitionandGenerationHydraulicValveIPPhone:WiredandWirelessInfusionPumpIntelligentOccupancySensingMotorControl:BrushedDC,BrushlessDC,Low-Voltage,PermanentMagnet,andStepperMotorPoint-to-PointMicrowaveBackhaulPowerBankSolutionsPowerLineCommunicationModemPowerOverEthernet(PoE)PowerQualityMeterPowerSubstationControlPrivateBranchExchange(PBX)ProgrammableLogicControllerRFIDReaderRefrigeratorSignalorWaveformGeneratorSoftwareDefinedRadio(SDR)WashingMachine:High-EndandLow-EndX-ray:BaggageScanner,Medical,andDental1AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.LM317SLVS044WSEPTEMBER1997REVISEDOCTOBER2014www.ti.comTableofContents8.3FeatureDescription...................................................81Features..................................................................18.4DeviceFunctionalModes..........................................92Applications...........................................................19ApplicationandImplementation........................103Description.............................................................19.1ApplicationInformation............................................104Battery-ChargerCircuit.........................................19.2TypicalApplication..................................................105RevisionHistory.....................................................29.3SystemExamples...................................................116PinConfigurationandFunctions.........................310PowerSupplyRecommendations.....................177Specifications.........................................................411Layout...................................................................177.1AbsoluteMaximumRatings......................................411.1LayoutGuidelines.................................................177.2ESDRatings..............................................................411.2LayoutExample....................................................177.3RecommendedOperatingConditions.......................412DeviceandDocumentationSupport.................187.4ThermalInformation..................................................412.1Trademarks...........................................................187.5ElectricalCharacteristics...........................................512.2ElectrostaticDischargeCaution............................187.6TypicalCharacteristics..............................................612.3Glossary................................................................188DetailedDescription..............................................813Mechanical,Packaging,andOrderable8.1Overview...................................................................8Information...........................................................188.2FunctionalBlockDiagram.........................................85RevisionHistoryChangesfromRevisionV(February2013)toRevisionWPageAddedApplications,DeviceInformationtable,PinFunctionstable,ESDRatingstable,ThermalInformationtable,FeatureDescriptionsection,DeviceFunctionalModes,ApplicationandImplementationsection,PowerSupplyRecommendationssection,Layoutsection,DeviceandDocumentationSupportsection,andMechanical,Packaging,andOrderableInformationsection......................................................................................................................1DeletedOrderingInformationtable........................................................................................................................................12SubmitDocumentationFeedbackCopyright19972014,TexasInstrumentsIncorporatedProductFolderLinks:LM317DCY(SOT-223) PACKAGE(TOPVIEW)INPUTOUTPUTADJUSTOUTPUTKTE PACKAGE(TOPVIEW)INPUTOUTPUTADJUSTOUTPUTKC (TO-220) PACKAGE(TOPVIEW)OUTPUTINPUTADJUSTOUTPUTKTT (TO-263) PACKAGE(TOPVIEW)INPUTOUTPUTADJUSTOUTPUTINPUTADJUSTOUTPUTKCS / KCT (TO-220) PACKAGE(TOPVIEW)OUTPUTLM317www.ti.comSLVS044WSEPTEMBER1997REVISEDOCTOBER20146PinConfigurationandFunctionsPinFunctionsPINTYPEDESCRIPTIONDCY,KCS,NAMEKCT,KTTADJUST1IOutputvoltageadjustmentpin.ConnecttoaresistordividertosetVOINPUT3ISupplyinputpinOUTPUT2OVoltageoutputpinCopyright19972014,TexasInstrumentsIncorporatedSubmitDocumentationFeedback3ProductFolderLinks:LM317LM317SLVS044WSEPTEMBER1997REVISEDOCTOBER2014www.ti.com7Specifications7.1AbsoluteMaximumRatingsovervirtualjunctiontemperaturerange(unlessotherwisenoted)(1)MINMAXUNITVIVOInput-to-outputdifferentialvoltage40VTJOperatingvirtualjunctiontemperature150CLeadtemperature1,6mm(1/16in)fromcasefor10s260CTstgStoragetemperaturerange65150C(1)StressesbeyondthoselistedunderAbsoluteMaximumRatingsmaycausepermanentdamagetothedevice.Thesearestressratingsonly,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunderRecommendedOperatingConditionsisnotimplied.Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmayaffectdevicereliability.7.2ESDRatingsMAXUNITHumanbodymodel(HBM),perANSI/ESDA/JEDECJS-001,allpins(1)2500V(ESD)ElectrostaticdischargeVChargeddevicemodel(CDM),perJEDECspecificationJESD22-C101,1000allpins(2)(1)JEDECdocumentJEP155statesthat500-VHBMallowssafemanufacturingwithastandardESDcontrolprocess.(2)JEDECdocumentJEP157statesthat250-VCDMallowssafemanufacturingwithastandardESDcontrolprocess.7.3RecommendedOperatingConditionsMINMAXUNITVOOutputvoltage1.257VVIVOInput-to-outputdifferentialvoltage340VIOOutputcurrent1.5ATJOperatingvirtualjunctiontemperature0125C7.4ThermalInformationLM317THERMALMETRIC(1)DCYKCSKTTUNIT4PINS4PINS4PINSRJAJunction-to-ambientthermalresistance531925.3RJC(top)Junction-to-case(top)thermalresistance30.61718C/WRJC(bot)Junction-to-case(bottom)thermalresistance31.94(1)Formoreinformationabouttraditionalandnewthermalmetrics,seetheICPackageThermalMetricsapplicationreport(SPRA953).4SubmitDocumentationFeedbackCopyright19972014,TexasInstrumentsIncorporatedProductFolderLinks:LM317LM317www.ti.comSLVS044WSEPTEMBER1997REVISEDOCTOBER20147.5ElectricalCharacteristicsoverrecommendedrangesofoperatingvirtualjunctiontemperature(unlessotherwisenoted)PARAMETERTESTCONDITIONS(1)MINTYPMAXUNITTJ=25C0.010.04Lineregulation(2)VIVO=3Vto40V%/VTJ=0Cto125C0.020.07VO5V25mVCADJ(3)=10F,TJ=25CVO5V0.10.5%VOLoadregulationIO=10mAto1500mAVO5V2070mVTJ=0Cto125CVO5V0.31.5%VOThermalregulation20-mspulse,TJ=25C0.030.07%VO/WADJUSTterminalcurrent50100AChangeinVIVO=2.5Vto40V,PD20W,IO=10mAto1500mA0.25AADJUSTterminalcurrentReferencevoltageVIVO=3Vto40V,PD20W,IO=10mAto1500mA1.21.251.3VOutput-voltageTJ=0Cto125C0.7%VOtemperaturestabilityMinimumloadcurrentVIVO=40V3.510mAtomaintainregulationVIVO15V,PD