LM340 LM78XX LM7805

LM340/LM78XXSeries3-TerminalPositiveRegulatorsGeneralDescriptionTheLM140/LM340A/LM340/LM78XXCmonolithic3-terminalpositivevoltageregulatorsemployinternalcurrent-limiting,thermalshutdownandsafe-areacompensa-tion,makingthemessentiallyindestructible.Ifadequateheatsinkingisprovided,theycandeliverover1.0Aoutputcur-rent.Theyareintendedasfixedvoltageregulatorsinawiderangeofapplicationsincludinglocal(on-card)regulationforeliminationofnoiseanddistributionproblemsassociatedwithsingle-pointregulation.Inadditiontouseasfixedvolt-ageregulators,thesedevicescanbeusedwithexternalcomponentstoobtainadjustableoutputvoltagesandcur-rents.Considerableeffortwasexpendedtomaketheentireseriesofregulatorseasytouseandminimizethenumberofexter-nalcomponents.Itisnotnecessarytobypasstheoutput,althoughthisdoesimprovetransientresponse.Inputby-passingisneededonlyiftheregulatorislocatedfarfromthefiltercapacitorofthepowersupply.The5V,12V,and15VregulatoroptionsareavailableinthesteelTO-3powerpackage.TheLM340A/LM340/LM78XXCseriesisavailableintheTO-220plasticpowerpackage,andtheLM340-5.0isavailableintheSOT-223package,aswellastheLM340-5.0andLM340-12inthesurface-mountTO-263package.FeaturesnCompletespecificationsat1AloadnOutputvoltagetolerancesof±2%atTj=25˚Cand±4%overthetemperaturerange(LM340A)nLineregulationof0.01%ofVOUT/Vof∆VINat1Aload(LM340A)nLoadregulationof0.3%ofVOUT/A(LM340A)nInternalthermaloverloadprotectionnInternalshort-circuitcurrentlimitnOutputtransistorsafeareaprotectionnP+ProductEnhancementtestedTypicalApplicationsFixedOutputRegulatorAdjustableOutputRegulator00778101*Requirediftheregulatorislocatedfarfromthepowersupplyfilter.**Althoughnooutputcapacitorisneededforstability,itdoeshelptransientresponse.(Ifneeded,use0.1µF,ceramicdisc).00778102VOUT=5V+(5V/R1+IQ)R25V/R13IQ,loadregulation(Lr)≈[(R1+R2)/R1](LrofLM340-5).CurrentRegulatorComparisonbetweenSOT-223andD-Pak(TO-252)Packages00778103∆IQ=1.3mAoverlineandloadchanges.00778138Scale1:1November2004LM340/LM78XXSeries3-TerminalPositiveRegulators©2004NationalSemiconductorCorporationDS007781˚Cto+125˚CLM140K-5.0LM140K5.0P+50PerTrayK02ALM140K-12LM140K12P+50PerTrayLM140K-15LM140K15P+50PerTray0˚Cto+125˚CLM340K-5.0LM340K5.07805P+50PerTrayLM340K-12LM340K127812P+50PerTrayLM340K-15LM340K157815P+50PerTray3-leadTO-2200˚Cto+125˚CLM340AT-5.0LM340AT5.0P+45Units/RailT03BLM340T-5.0LM340T57805P+45Units/RailLM340T-12LM340T127812P+45Units/RailLM340T-15LM340T157815P+45Units/RailLM7808CTLM7808CT45Units/Rail3-LeadTO-2630˚Cto+125˚CLM340S-5.0LM340S-5.0P+45Units/RailTS3BLM340SX-5.0500UnitsTapeandReelLM340S-12LM340S-12P+45Units/RailLM340SX-12500UnitsTapeandReelLM340AS-5.0LM340AS-5.0P+45Units/RailLM340ASX-5.0500UnitsTapeandReel4-LeadSOT-2230˚Cto+125˚CLM340MP-5.0N00A1kUnitsTapeandReelMP04ALM340MPX-5.02kUnitsTapeandReelUnpackagedDie−55˚Cto125˚CLM140KG-5MD8WafflePackorGelPackDL069089LM140KG-12MD8WafflePackorGelPackDL059093LM140KG-15MD8WafflePackorGelPackDL0590930˚Cto+125˚CLM340-5.0MDAWafflePackorGelPackDI074056LM7808CMDCWafflePackorGelPackDI074056ConnectionDiagramsTO-3MetalCanPackage(K)TO-220PowerPackage(T)00778111BottomViewSeePackageNumberK02A00778112TopViewSeePackageNumberT03BTO-263Surface-MountPackage(S)3-LeadSOT-22300778120TopViewSeePackageNumberTS3B00778143TopViewSeePackageNumberMP04ALM340/LM78XX(Note1)IfMilitary/Aerospacespecifieddevicesarerequired,pleasecontacttheNationalSemiconductorSalesOffice/Distributorsforavailabilityandspecifications.(Note5)DCInputVoltage35VInternalPowerDissipation(Note2)InternallyLimitedMaximumJunctionTemperature150˚CStorageTemperatureRange−65˚Cto+150˚CLeadTemperature(Soldering,10sec.)TO-3Package(K)300˚CTO-220Package(T),TO-263Package(S)230˚CESDSusceptibility(Note3)2kVOperatingConditions(Note1)TemperatureRange(TA)(Note2)LM140−55˚Cto+125˚CLM340A,LM3400˚Cto+125˚CLM7808C0˚Cto+125˚CLM340AElectricalCharacteristicsIOUT=1A,0˚C≤TJ≤+125˚C(LM340A)unlessotherwisespecified(Note4)OutputVoltage5V12V15VSymbolInputVoltage(unlessotherwisenoted)10V19V23VUnitsParameterConditionsMinTypMaxMinTypMaxMinTypMaxVOOutputVoltageTJ=25˚C4.955.111.751212.2514.71515.3VPD≤15W,5mA≤IO≤1A4.85.211.512.514.415.6VVMIN≤VIN≤VMAX(7.5≤VIN≤20)(14.8≤VIN≤27)(17.9≤VIN≤30)V∆VOLineRegulationIO=500mA101822mV∆VIN(7.5≤VIN≤20)(14.8≤VIN≤27)(17.9≤VIN≤30)VTJ=25˚C310418422mV∆VIN(7.5≤VIN≤20)(14.5≤VIN≤27)(17.5≤VIN≤30)VTJ=25˚C4910mVOverTemperature123030mV∆VIN(8≤VIN≤12)(16≤VIN≤22)(20≤VIN≤26)V∆VOLoadRegulationTJ=25˚C5mA≤IO≤1.5A102512321235mV250mA≤IO≤750mA151921mVOverTemperature,256075mV5mA≤IO≤1AIQQuiescentCurrentTJ=25˚C666mAOverTemperature6.56.56.5mA∆IQQuiescentCurrent5mA≤IO≤1A0.50.50.5mAChangeTJ=25˚C,IO=1A0.80.80.8mAVMIN≤VIN≤VMAX(7.5≤VIN≤20)(14.8≤VIN≤27)(17.9≤VIN≤30)VIO=500mA0.80.80.8mAVMIN≤VIN≤VMAX(8≤VIN≤25)(15≤VIN≤30)(17.9≤VIN≤30)VVNOutputNoiseVoltageTA=25˚C,10Hz≤f≤100kHz407590µVRippleRejectionTJ=25˚C,f=120Hz,IO=1A688061726070dBorf=120Hz,IO=500mA,686160dBOverTemperature,VMIN≤VIN≤VMAX(8≤VIN≤18)(15≤VIN