LM1117数据手册

LM1117/LM1117I800mALow-DropoutLinearRegulatorGeneralDescriptionTheLM1117isaseriesoflowdropoutvoltageregulatorswithadropoutof1.2Vat800mAofloadcurrent.Ithasthesamepin-outasNationalSemiconductor’sindustrystandardLM317.TheLM1117isavailableinanadjustableversion,whichcansettheoutputvoltagefrom1.25Vto13.8Vwithonlytwoexternalresistors.Inaddition,itisalsoavailableinfivefixedvoltages,1.8V,2.5V,2.85V,3.3V,and5V.TheLM1117offerscurrentlimitingandthermalshutdown.Itscircuitincludesazenertrimmedbandgapreferencetoas-sureoutputvoltageaccuracytowithin±1%.TheLM1117seriesisavailableinLLP,TO-263,SOT-223,TO-220,andTO-252D-PAKpackages.Aminimumof10µFtantalumcapacitorisrequiredattheoutputtoimprovethetransientresponseandstability.FeaturesnAvailablein1.8V,2.5V,2.85V,3.3V,5V,andAdjustableVersionsnSpaceSavingSOT-223andLLPPackagesnCurrentLimitingandThermalProtectionnOutputCurrent800mAnLineRegulation0.2%(Max)nLoadRegulation0.4%(Max)nTemperatureRange—LM11170˚Cto125˚C—LM1117I−40˚Cto125˚CApplicationsn2.85VModelforSCSI-2ActiveTerminationnPostRegulatorforSwitchingDC/DCConverternHighEfficiencyLinearRegulatorsnBatteryChargernBatteryPoweredInstrumentationTypicalApplicationActiveTerminatorforSCSI-2Bus10091905FixedOutputRegulator10091928June2004LM1117/LM1117I800mALow-DropoutLinearRegulator©2004NationalSemiconductorCorporationDS100919˚Cto+125˚CLM1117MPX-ADJN03ATapeandReelMP04ALM1117MPX-1.8N12ATapeandReelLM1117MPX-2.5N13ATapeandReelLM1117MPX-2.85N04ATapeandReelLM1117MPX-3.3N05ATapeandReelLM1117MPX-5.0N06ATapeandReel−40˚Cto+125˚CLM1117IMPX-ADJN03BTapeandReelLM1117IMPX-3.3N05BTapeandReelLM1117IMPX-5.0N06BTapeandReel3-leadTO-2200˚Cto+125˚CLM1117T-ADJLM1117T-ADJRailsT03BLM1117T-1.8LM1117T-1.8RailsLM1117T-2.5LM1117T-2.5RailsLM1117T-2.85LM1117T-2.85RailsLM1117T-3.3LM1117T-3.3RailsLM1117T-5.0LM1117T-5.0Rails3-leadTO-2520˚Cto+125˚CLM1117DTX-ADJLM1117DT-ADJTapeandReelTD03BLM1117DTX-1.8LM1117DT-1.8TapeandReelLM1117DTX-2.5LM1117DT-2.5TapeandReelLM1117DTX-2.85LM1117DT-2.85TapeandReelLM1117DTX-3.3LM1117DT-3.3TapeandReelLM1117DTX-5.0LM1117DT-5.0TapeandReel−40˚Cto+125˚CLM1117IDTX-ADJLM1117IDT-ADJTapeandReelLM1117IDTX-3.3LM1117IDT-3.3TapeandReelLM1117IDTX-5.0LM1117IDT-5.0TapeandReel8-leadLLP0˚Cto+125˚CLM1117LDX-ADJ1117ADJTapeandReelLDC08ALM1117LDX-1.81117-18TapeandReelLM1117LDX-2.51117-25TapeandReelLM1117LDX-2.851117-28TapeandReelLM1117LDX-3.31117-33TapeandReelLM1117LDX-5.01117-50TapeandReel−40˚Cto125˚CLM1117ILDX-ADJ1117IADTapeandReelLM1117ILDX-3.31117I33TapeandReelLM1117ILDX-5.01117I50TapeandReelTO-2630˚Cto+125˚CLM1117SX-ADJLM1117SADJTapeandReelTS3BLM1117SX-2.85LM1117S2.85TapeandReelLM1117SX-3.3LM1117S3.3TapeandReelLM1117SX-5.0LM1117S5.0TapeandReelLM1117/LM1117I(Note1)IfMilitary/Aerospacespecifieddevicesarerequired,pleasecontacttheNationalSemiconductorSalesOffice/Distributorsforavailabilityandspecifications.MaximumInputVoltage(VINtoGND)20VPowerDissipation(Note2)InternallyLimitedJunctionTemperature(TJ)(Note2)150˚CStorageTemperatureRange-65˚Cto150˚CLeadTemperatureTO-220(T)Package260˚C,10secSOT-223(IMP)Package260˚C,4secESDTolerance(Note3)2000VOperatingRatings(Note1)InputVoltage(VINtoGND)15VJunctionTemperatureRange(TJ)(Note2)LM11170˚Cto125˚CLM1117I−40˚Cto125˚CLM1117ElectricalCharacteristicsTypicalsandlimitsappearinginnormaltypeapplyforTJ=25˚C.LimitsappearinginBoldfacetypeapplyovertheentirejunc-tiontemperaturerangeforoperation,0˚Cto125˚C.SymbolParameterConditionsMin(Note5)Typ(Note4)Max(Note5)UnitsVREFReferenceVoltageLM1117-ADJIOUT=10mA,VIN-VOUT=2V,TJ=25˚C10mA≤IOUT≤800mA,1.4V≤VIN-VOUT≤10V1.2381.2251.2501.2501.2621.270VVVOUTOutputVoltageLM1117-1.8IOUT=10mA,VIN=3.8V,TJ=25˚C0≤IOUT≤800mA,3.2V≤VIN≤10V1.7821.7461.8001.8001.8181.854VVLM1117-2.5IOUT=10mA,VIN=4.5V,TJ=25˚C0≤IOUT≤800mA,3.9V≤VIN≤10V2.4752.4502.5002.5002.5252.550VVLM1117-2.85IOUT=10mA,VIN=4.85V,TJ=25˚C0≤IOUT≤800mA,4.25V≤VIN≤10V0≤IOUT≤500mA,VIN=4.10V2.8202.7902.7902.8502.8502.8502.8802.9102.910VVVLM1117-3.3IOUT=10mA,VIN=5VTJ=25˚C0≤IOUT≤800mA,4.75V≤VIN≤10V3.2673.2353.3003.3003.3333.365VVLM1117-5.0IOUT=10mA,VIN=7V,TJ=25˚C0≤IOUT≤800mA,6.5V≤VIN≤12V4.9504.9005.0005.0005.0505.100VV∆VOUTLineRegulation(Note6)LM1117-ADJIOUT=10mA,1.5V≤VIN-VOUT≤13.75V0.0350.2%LM1117-1.8IOUT=0mA,3.2V≤VIN≤10V16mVLM1117-2.5IOUT=0mA,3.9V≤VIN≤10V16mVLM1117-2.85IOUT=0mA,4.25V≤VIN≤10V16mVLM1117-3.3IOUT=0mA,4.75V≤VIN≤15V16mVLM1117-5.0IOUT=0mA,6.5V≤VIN≤15V110mVLM1117/LM1117I(Continued)TypicalsandlimitsappearinginnormaltypeapplyforTJ=25˚C.LimitsappearinginBoldfacetypeapplyovertheentirejunc-tiontemperaturerangeforoperation,0˚Cto125˚C.SymbolParameterConditionsMin(Note5)Typ(Note4)M