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首页 RC1117S33T+

RC1117S33T+.pdf

RC1117S33T+

银杏树
2012-07-17 0人阅读 0 0 0 暂无简介 举报

简介:本文档为《RC1117S33T+pdf》,可适用于IT/计算机领域

wwwfairchildsemicomREVFeatures•Lowdropoutvoltage•Loadregulation:typical•Trimmedcurrentlimit•Onchipthermallimiting•StandardSOT,TO,andTOpackages•ThreeterminaladjustableorfixedV,V,V,VApplications•ActiveSCSIterminators•Highefficiencylinearregulators•Postregulatorsforswitchingsupplies•Batterychargers•VtoVlinearregulators•MotherboardclocksuppliesDescriptionTheRCandRC,,andarelowdropoutthreeterminalregulatorswithAoutputcurrentcapabilityThesedeviceshavebeenoptimizedforlowvoltagewheretransientresponseandminimuminputvoltagearecriticalTheVversionisdesignedspecificallytobeusedinActiveTerminatorsforSCSIbusCurrentlimitistrimmedtoensurespecifiedoutputcurrentandcontrolledshortcircuitcurrentOnchipthermallimitingprovidesprotectionagainstanycombinationofoverloadandambienttemperaturesthatwouldcreateexcessivejunctiontemperaturesUnlikePNPtyperegulatorswhereuptooftheoutputcurrentiswastedasquiescentcurrent,thequiescentcurrentoftheRCflowsintotheload,increasingefficiencyTheRCseriesregulatorsareavailableintheindustrystandardSOT,TO(DPAK),andTO(DPAK)powerpackagesTypicalApplicationsVIN=VVINVOUTADJVatARCµFµFRΩRΩVIN=VVINVOUTGNDVatARCµFµFVOUT=VREF(RR)IAdj•RRCAAdjustableFixedLowDropoutLinearRegulatorPRODUCTSPECIFICATIONRCREVPinAssignments*Withpackagesolderedtosquareinchcopperareaoverbacksidegroundplaneorinternalpowerplane,ΘJAcanvaryfrom°CWtomorethan°CWOthermountingtechniquesmayprovidebetterthermalresistancethan°CWAbsoluteMaximumRatingsParameterMinMaxUnitVINVOperatingJunctionTemperatureRange°CStorageTemperatureRange°CLeadTemperature(Soldering,sec)°CFrontViewLeadPlasticSOTΘJC=°CW*LeadPlasticTOΘJC=°CW*TabisVOUTTabisVOUTADJGNDINLeadPlasticTOΘJC=°CW*TabisVOUTADJGNDINOUTINOUTADJGNDRCPRODUCTSPECIFICATIONREVElectricalCharacteristicsOperatingConditions:VIN≤V,TJ=°CunlessotherwisespecifiedThe•denotesspecificationswhichapplyoverthespecifiedoperatingtemperaturerangeNotes:SeethermalregulationspecificationsforchangesinoutputvoltageduetoheatingeffectsLoadandlineregulationaremeasuredataconstantjunctiontemperaturebylowdutycyclepulsetestingLineandloadregulationareguaranteeduptothemaximumpowerdissipation(W)PowerdissipationisdeterminedbyinputoutputdifferentialandtheoutputcurrentGuaranteedmaximumoutputpowerwillnotbeavailableoverthefullinputoutputvoltagerangeRConlyParameterConditionsMinTypMaxUnitsReferenceVoltage,VREFV≤(VINVOUT)≤V,mA≤IOUT≤A•()()VOutputVoltagemA≤IOUT≤ARC,V≤VIN≤VRC,V≤VIN≤VRC,V≤VIN≤VRC,V≤VIN≤V••••VVVVLineRegulation,(VOUTV)≤VIN≤V,IOUT=mA•LoadRegulation,(VIN–VOUT)=V,mA≤IOUT≤A•DropoutVoltage∆VREF=,IOUT=A•VCurrentLimit(VIN–VOUT)=V•AAdjustPinCurrent,IAdj•µAAdjustPinCurrentChangeV≤(VIN–VOUT)≤,mA≤IOUT≤A•µAMinimumLoadCurrentV≤(VIN–VOUT)≤•mAQuiescentCurrentVIN=VOUTV•mARippleRejectionf=Hz,COUT=µFTantalum,(VIN–VOUT)=V,IOUT=AdBThermalRegulationTA=°C,mspulseWTemperatureStability•LongTermStabilityTA=°C,hrsRMSOutputNoise(ofVOUT)TA=°C,Hz≤f≤kHzThermalResistance,JunctiontoCaseSOT°CWTO,TO°CWThermalShutdownJunctionTemperature°CThermalShutdownHysteresis°CPRODUCTSPECIFICATIONRCREVTypicalPerformanceCharacteristicsOUTPUTCURRENT(A)JUNCTIONTEMPERATURE(°C)JUNCTIONTEMPERATURE(°C)JUNCTIONTEMPERATURE(°C)DROPOUTVOLTAGE(V)REFERENCEVOLTAGE(V)REFERENCEVOLTAGE(V)ADJUSTPINCURRENT(µA)MINIMUMLOADCURRENT(mA)DROPOUTVOLTAGEDEVIATION()JUNCTIONTEMPERATURE(°C)JUNCTIONTEMPERATURE(°C)TJ=°CTJ=°CTJ=°C∆I=AVOUT=VVOUTSETWITHRESISTORSVOUT=VNote:RCOnlyNote:RCOnlyFigureDropoutVoltagevsOutputCurrentFigureLoadRegulationvsTemperatureFigureReferenceVoltagevsTemperatureFigureOutputVoltagevsTemperatureFigureMinimumLoadCurrentvsTemperatureFigureAdjustPinCurrentvsTemperatureRCPRODUCTSPECIFICATIONREVTypicalPerformanceCharacteristics(continued)SHORTCIRCUITCURRENT(A)JUNCTIONTEMPERATURE(°C)POWER(W)CASETEMPERATURE(°C)SOTRIPPLEREJECTION(dB)FREQUENCY(Hz)KKK(VINVOUT)=V<VRIPPLE<VIOUT=ATOTOFigureShortCircuitCurrentvsTemperatureFigureRippleRejectionvsFrequencyFigureMaximumPowerDissipationPRODUCTSPECIFICATIONRCREVMechanicalDimensionsLeadSOTPackageASymbolInchesMinMaxMinMaxMillimetersNotesABcEeH°FFIJD°°°K°°L°°M°°NADeEcHABIJKLMNRCPRODUCTSPECIFICATIONREVMechanicalDimensionsLeadTOPackageDDGAGEPLANENOTES:UNLESSOTHERWISESPECIFIEDA)ALLDIMENSIONSAREINMILLIMETERSB)THISPACKAGECONFORMSTOJEDEC,TO,ISSUECVARIATIONAAAB,DATEDNOVC)DIMENSIONINGANDTOLERANCINGPERASMEY–D)HEATSINKTOPEDGECOULDBEINCHAMFEREDCORNERSOREDGEPROTRUSIONE)DIMENSIONSL,D,EDTABLE:OPTIONAAOPTIONAB––––MINMINMINLDEDMINSEATINGPLANEDETAILA()°°MAX(ROTATED–°SCALEXELMINMINBSEEDETAILAMINMINLANDPATTERNRECOMMENDATIONSEENOTED()ACMMCABPRODUCTSPECIFICATIONRCREVMechanicalDimensionsLeadTOPackageASymbolInchesMinMaxMinMaxMillimetersNotesbbcDBSCEeLαLLR°°°°Notes:DimensionsareexclusiveofmoldflashandmetalburrsStandoffheightismeasuredfromleadtipwithreftoDatumBFootlengthismeasuredwithreftoDatumAwithleadsurface(atinnerR)DimensiuonexclusiveofdambarprotrusionorintrusionFormedleadstobeplanarwithrespecttooneanotheratseatingplaceCBSCEPKGHEATSINKDLACLcLR(PLCS)ABEPINbbePRODUCTSPECIFICATIONRCLIFESUPPORTPOLICYFAIRCHILD’SPRODUCTSARENOTAUTHORIZEDFORUSEASCRITICALCOMPONENTSINLIFESUPPORTDEVICESORSYSTEMSWITHOUTTHEEXPRESSWRITTENAPPROVALOFTHEPRESIDENTOFFAIRCHILDSEMICONDUCTORCORPORATIONAsusedherein:Lifesupportdevicesorsystemsaredevicesorsystemswhich,(a)areintendedforsurgicalimplantintothebody,or(b)supportorsustainlife,and(c)whosefailuretoperformwhenproperlyusedinaccordancewithinstructionsforuseprovidedinthelabeling,canbereasonablyexpectedtoresultinasignificantinjuryoftheuserAcriticalcomponentinanycomponentofalifesupportdeviceorsystemwhosefailuretoperformcanbereasonablyexpectedtocausethefailureofthelifesupportdeviceorsystem,ortoaffectitssafetyoreffectivenesswwwfairchildsemicommStock#DSFairchildSemiconductorCorporationDISCLAIMERFAIRCHILDSEMICONDUCTORRESERVESTHERIGHTTOMAKECHANGESWITHOUTFURTHERNOTICETOANYPRODUCTSHEREINTOIMPROVERELIABILITY,FUNCTIONORDESIGNFAIRCHILDDOESNOTASSUMEANYLIABILITYARISINGOUTOFTHEAPPLICATIONORUSEOFANYPRODUCTORCIRCUITDESCRIBEDHEREINNEITHERDOESITCONVEYANYLICENSEUNDERITSPATENTRIGHTS,NORTHERIGHTSOFOTHERSOrderingInformationProductNumberOutputPackageRCDTAdjustableTOintapeandreelRCMAdjustableTORCMTAdjustableTOintapeandreelRCSTAdjustableSOTintapeandreelRCDTvoltTOintapeandreelRCMvoltTORCMTvoltTOintapeandreelRCSTvoltSOTintapeandreelRCMvoltTORCMTvoltTOintapeandreelRCSTvoltSOTintapeandreelRCDTvoltTOintapeandreelRCMvoltTORCMTvoltTOintapeandreelRCSTvoltSOTintapeandreelRCDTvoltTOintapeandreelRCMvoltTORCMTvoltTOintapeandreelRCSTvoltSOTintapeandreel

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