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TLV70033.pdf

TLV70033.pdf

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简介:本文档为《TLV70033pdf》,可适用于硬件技术领域,主题内容包含TLVxxGNDENINOUTVINVOUTOnOffCINCOUTFCeramicmENNCNCINGNDOUTTLVxxDSE,mmx,mmSO符等。

TLVxxGNDENINOUTVINVOUTOnOffCINCOUTFCeramicmENNCNCINGNDOUTTLVxxDSE,mmx,mmSON(TOPVIEW)TLVxxDDCTSOT(TOPVIEW)OUTNCINGNDENTLVxxDCKSCPACKAGE(TOPVIEW)OUTNCINGNDENTLVxxwwwticomSLVSAC–SEPTEMBER–REVISEDJULYmA,LowIQ,LowDropoutRegulatorforPortableDevicesFEATURESDESCRIPTIONTheTLVxxseriesoflowdropout(LDO)linear•VeryLowDropout:regulatorsarelowquiescentcurrentdeviceswith–mVatIOUT=mA,VOUT=VexcellentlineandloadtransientperformanceThese–mVatIOUT=mA,VOUT=VLDOsaredesignedforpowersensitiveapplicationsAprecisionbandgapanderroramplifierprovides–mVatIOUT=mA,VOUT=VoverallaccuracyLowoutputnoise,veryhigh•Accuracypowersupplyrejectionratio(PSRR),andlowdropout•LowIQ:μAvoltagemakethisseriesofdevicesidealformostbatteryoperatedhandheldequipmentAlldevice•AvailableinFixedOutputVoltagesfromVversionshavethermalshutdownandcurrentlimitfortoVsafety•HighPSRR:dBatkHzFurthermore,thesedevicesarestablewithan•StablewithEffectiveCapacitanceofμF()effectiveoutputcapacitanceofonlyμFThis•ThermalShutdownandOvercurrentProtectionfeatureenablestheuseofcosteffectivecapacitors•Availablein,mm,mmSON,SOT,thathavehigherbiasvoltagesandtemperatureandSCPackagesderatingThedevicesregulatetospecifiedaccuracywithnooutputload()SeetheInputandOutputCapacitorRequirementsintheApplicationInformationsectionTheTLVxxseriesofLDOsareavailablein,mmx,mmSON,TSOT,andSCAPPLICATIONSpackages•WirelessHandsetsspace•SmartPhones,PDAsspace•MPPlayers•ZigBeeNetworks•BluetoothDevices•LiIonOperatedHandheldProducts•WLANandOtherPCAddonCardsTypicalApplicationCircuit(FixedVoltageVersions)Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheetBluetoothisaregisteredtrademarkofBluetoothSIGZigBeeisaregisteredtrademarkoftheZigBeeAllianceAllothertrademarksarethepropertyoftheirrespectiveownersPRODUCTIONDATAinformationiscurrentasofpublicationdateCopyright–,TexasInstrumentsIncorporatedProductsconformtospecificationsperthetermsoftheTexasInstrumentsstandardwarrantyProductionprocessingdoesnotnecessarilyincludetestingofallparametersTLVxxSLVSAC–SEPTEMBER–REVISEDJULYwwwticomThisintegratedcircuitcanbedamagedbyESDTexasInstrumentsrecommendsthatallintegratedcircuitsbehandledwithappropriateprecautionsFailuretoobserveproperhandlingandinstallationprocedurescancausedamageESDdamagecanrangefromsubtleperformancedegradationtocompletedevicefailurePrecisionintegratedcircuitsmaybemoresusceptibletodamagebecauseverysmallparametricchangescouldcausethedevicenottomeetitspublishedspecificationsORDERINGINFORMATION()PRODUCTVOUT()TLVxxyyyzXXisnominaloutputvoltage(forexample,=V)YYYisthepackagedesignatorZistapeandreelquantity(R=,T=)()ForthemostcurrentpackageandorderinginformationseethePackageOptionAddendumattheendofthisdocument,orvisitthedeviceproductfolderatwwwticom()OutputvoltagesfromVtoVinmVincrementsareavailableContactfactoryfordetailsandavailabilityABSOLUTEMAXIMUMRATINGS()AtTJ=–CtoC(unlessotherwisenoted)AllvoltagesarewithrespecttoGNDPARAMETERTLVxxUNITInputvoltagerange,VIN–toVEnablevoltagerange,VEN–to()VOutputvoltagerange,VOUT–toVMaximumoutputcurrent,IOUTInternallylimitedOutputshortcircuitdurationIndefiniteTotalcontinuouspowerdissipation,PDISSSeeDissipationRatingsTableHumanbodymodel(HBM)kVESDratingChargeddevicemodel(CDM)VOperatingjunctiontemperaturerange,TJ–toCStoragetemperaturerange,TSTG–toC()StressesabovetheseratingsmaycausepermanentdamageExposuretoabsolutemaximumconditionsforextendedperiodsmaydegradedevicereliabilityThesearestressratingsonly,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthosespecifiedisnotimplied()VENabsolutemaximumratingisVINVorV,whicheverislessDISSIPATIONRATINGSDERATINGFACTORBOARDPACKAGERθJCRθJAABOVETA=CTA<CTA=CTA=CLowK()DCKCWCWmWCmWmWmWHighK()DCKCWCWmWCmWmWmWHighK()DSECWCWmWCmWmWmWLowK()DDCCWCWmWCmWmWmWHighK()DDCCWCWmWCmWmWmW()TheJEDEClowK(s)boardusedtoderivethisdatawasainchinch,twolayerboardwithouncecoppertracesontopoftheboard()TheJEDEChighK(sp)boardusedtoderivethisdatawasainchinch,multilayerboardwithounceinternalpowerandgroundplanesandouncecoppertracesontopandbottomoftheboardCopyright–,TexasInstrumentsIncorporatedTLVxxwwwticomSLVSAC–SEPTEMBER–REVISEDJULYELECTRICALCHARACTERISTICSAtVIN=VOUT(Typ)VorV(whicheverisgreater)IOUT=mA,VEN=V,COUT=μF,andTJ=–CtoC,unlessotherwisenotedTypicalvaluesareatTJ=CspacePARAMETERTESTCONDITIONSMINTYPMAXUNITVINInputvoltagerangeVVOUTDCoutputaccuracy–CTJC–VOUT(NOM)VVINV,ΔVOΔVINLineregulationmVIOUT=mAΔVOΔIOUTLoadregulationmAIOUTmAmVVIN=VOUT(NOM),IOUT=mA,mVVOUT=VVIN=VOUT(NOM),IOUT=mA,VDODropoutvoltage()mVVOUT=VVIN=VOUT(NOM),IOUT=mA,mVVOUT=VICLOutputcurrentlimitVOUT=VOUT(NOM)mAIOUT=mAμAIGNDGroundpincurrentIOUT=mA,VIN=VOUTVμAVENV,VIN=VnAISHDNGroundpincurrent(shutdown)VENV,VVINVμAVIN=V,VOUT=V,PSRRPowersupplyrejectionratiodBIOUT=mA,f=kHzBW=HztokHz,VNOutputnoisevoltageμVRMSVIN=V,VOUT=V,IOUT=mAtSTRStartuptime()COUT=μF,IOUT=mAμsVEN(HI)Enablepinhigh(enabled)VINVVEN(LO)Enablepinlow(disabled)VIENEnablepincurrentVIN=VEN=VμAUVLOUndervoltagelockoutVINrisingVShutdown,temperatureincreasingCTSDThermalshutdowntemperatureReset,temperaturedecreasingCTJOperatingjunctiontemperature–C()VDOismeasuredfordeviceswithVOUT(NOM)V()Startuptime=timefromENassertiontoVOUT(NOM)Copyright–,TexasInstrumentsIncorporatedThermalShutdownCurrentLimitUVLOBandgapINENOUTLOGICGNDTLVxxSeriesTLVxxSLVSAC–SEPTEMBER–REVISEDJULYwwwticomFUNCTIONALBLOCKDIAGRAMFigureTLVxxCopyright–,TexasInstrumentsIncorporatedOUTNC()INGNDENOUTNC()INGNDENENNC()NC()INGNDOUTTLVxxwwwticomSLVSAC–SEPTEMBER–REVISEDJULYPINCONFIGURATIONSDDCPACKAGEDCKPACKAGETSOTSC(TOPVIEW)(TOPVIEW)DSEPACKAGESON(TOPVIEW)()NoconnectionPINDESCRIPTIONSSONSCTSOTNAMEDSEDCKDDCDESCRIPTIONInputpinAsmallμFceramiccapacitorisrecommendedfromthispintogroundINtoassurestabilityandgoodtransientperformanceSeeInputandOutputCapacitorRequirementsintheApplicationInformationsectionformoredetailsGNDGroundpinEnablepinDrivingENoverVturnsontheregulatorDrivingENbelowVENputstheregulatorintoshutdownmodeandreducesoperatingcurrenttoμA,nominalNC,NoconnectionThispincanbetiedtogroundtoimprovethermaldissipationRegulatedoutputvoltagepinAsmallμFceramiccapacitorisneededfromthisOUTpintogroundtoassurestabilitySeeInputandOutputCapacitorRequirementsintheApplicationInformationsectionformoredetailsCopyright–,TexasInstrumentsIncorporatedInputVoltage(V)OutputVoltage(V)CCCCI=mAOUTInputVoltage(V)OutputVoltage(V)CCCCI=mAOUTOutputCurrent(mA)OutputVoltage(V)CCCCDropoutVoltage(mV)InputVoltage(V)CCCCI=mAOUTOutputVoltage(V)Temperature(C)I=mAI=mAI=mAOUTOUTOUTOutputCurrent(mA)DropoutVoltage(V)CCCCTLVxxSLVSAC–SEPTEMBER–REVISEDJULYwwwticomTYPICALCHARACTERISTICSOveroperatingtemperaturerange(TJ=–CtoC),VIN=VOUT(TYP)VorV,whicheverisgreaterIOUT=mA,VEN=VIN,COUT=μF,unlessotherwisenotedTypicalvaluesareatTJ=CTLVTLVLINEREGULATIONLINEREGULATIONFigureFigureTLVDROPOUTVOLTAGELOADREGULATIONvsINPUTVOLTAGEFigureFigureDROPOUTVOLTAGEvsOUTPUTCURRENTTLVVOUT=VOUTPUTVOLTAGEvsTEMPERATUREFigureFigureCopyright–,TexasInstrumentsIncorporatedCCCCGroundPinCurrent(A)mOutputCurrent(mA)InputVoltage(V)GroundPinCurrent(A)mCCCCI=mAOUTGroundPinCurrent(A)mTemperature(C)I=mAOUTInputVoltage(V)ShutdownCurrent(A)mCCCPSRR(dB)kkkMMFrequency(Hz)I=mAOUTI=mAOUTVV=VINOUTInputVoltage(V)PSRR(dB)kHzkHzkHzTLVxxwwwticomSLVSAC–SEPTEMBER–REVISEDJULYTYPICALCHARACTERISTICS(continued)Overoperatingtemperaturerange(TJ=–CtoC),VIN=VOUT(TYP)VorV,whicheverisgreaterIOUT=mA,VEN=VIN,COUT=μF,unlessotherwisenotedTypicalvaluesareatTJ=CTLVTLVGROUNDPINCURRENTvsINPUTVOLTAGEGROUNDPINCURRENTvsLOADFigureFigureTLVTLVGROUNDPINCURRENTvsTEMPERATURESHUTDOWNCURRENTvsINPUTVOLTAGEFigureFigureTLVTLVPOWERSUPPLYRIPPLEREJECTIONvsFREQUENCYPOWERSUPPLYRIPPLEREJECTIONvsINPUTVOLTAGEFigureFigureCopyright–,TexasInstrumentsIncorporatedmAdivmVdivsdivmVOUTVIN=VIOUTmAmAt=t=sRFmOutputSpectralNoiseDensity(V)mHzÖkkkMMFrequency(Hz)I=mAC=C=FOUTmINOUTmAdivmVdivsdivmVOUTVIN=VIOUTmAmAt=t=sRFmmAdivmVdivsdivmVOUTVIN=VIOUTmAmAt=t=sRFmVdivmVdivmsdivVOUTSlewRate=VsmVINVVImAOUT=VdivmVdivmsdivVOUTVINVVImAOUT=SlewRate=VsmTLVxxSLVSAC–SEPTEMBER–REVISEDJULYwwwticomTYPICALCHARACTERISTICS(continued)Overoperatingtemperaturerange(TJ=–CtoC),VIN=VOUT(TYP)VorV,whicheverisgreaterIOUT=mA,VEN=VIN,COUT=μF,unlessotherwisenotedTypicalvaluesareatTJ=CTLVOUTPUTSPECTRALNOISEDENSITYTLVvsOUTPUTVOLTAGELOADTRANSIENTRESPONSEFigureFigureTLVTLVLOADTRANSIENTRESPONSELOADTRANSIENTRESPONSEFigureFigureTLVTLVLINETRANSIENTRESPONSELINETRANSIENTRESPONSEFigureFigureCopyright–,TexasInstrumentsIncorporatedVdivmVdivmsdivVOUTVINVVImAOUT=SlewRate=VsmVdivmsdivVOUTVINImAOUT=TLVxxwwwticomSLVSAC–SEPTEMBER–REVISEDJULYTYPICALCHARACTERISTICS(continued)Overoperatingtemperaturerange(TJ=–CtoC),VIN=VOUT(TYP)VorV,whicheverisgreaterIOUT=mA,VEN=VIN,COUT=μF,unlessotherwisenotedTypicalvaluesareatTJ=CTLVTLVLINETRANSIENTRESPONSEVINRAMPUP,RAMPDOWNRESPONSEFigureFigureCopyright–,TexasInstrumentsIncorporatedTLVxxSLVSAC–SEPTEMBER–REVISEDJULYwwwticomAPPLICATIONINFORMATIONTheTLVxxbelongstoanewfamilyofnextgenerationvalueLDOregulatorsThesedevicesBoardLayoutRecommendationstoImproveconsumelowquiescentcurrentanddeliverexcellentPSRRandNoisePerformancelineandloadtransientperformanceTheseInputandoutputcapacitorsshouldbeplacedascharacteristics,combinedwithlownoise,verygoodclosetothedevicepinsaspossibleToimproveacPSRRwithlittle(VIN–VOUT)headroom,makethisperformancesuchasPSRR,outputnoise,andfamilyofdevicesidealforRFportableapplicationstransientresponse,itisrecommendedthattheboardThisfamilyofregulatorsofferscurrentlimitandbedesignedwithseparategroundplanesforVINandthermalprotection,andisspecifiedfrom–CtoVOUT,withthegroundplaneconnectedonlyattheCGNDpinofthedeviceInaddition,thegroundconnectionfortheoutputcapacitorshouldbeInputandOutputCapacitorRequirementsconnecteddirectlytotheGNDpinofthedeviceHighμFXRandXRtypeceramiccapacitorsareESRcapacitorsmaydegradePSRRperformancerecommendedbecausethesecapacitorshaveminimalvariationinvalueandequivalentseriesInternalCurrentLimitresistance(ESR)overtemperatureTheTLVxxinternalcurrentlimithelpstoprotectHowever,theTLVxxisdesignedtobestablewiththeregulatorduringfaultconditionsDuringcurrentaneffectivecapacitanceofμForlargeratthelimit,theoutputsourcesafixedamountofcurrentoutputThus,thedeviceisstablewithcapacitorsofthatislargelyindependentoftheoutputvoltageInotherdielectrictypesaswell,aslongastheeffectivesuchacase,theoutputvoltageisnotregulated,andcapacitanceunderoperatingbiasvoltageandisVOUT=ILIMITRLOADThePMOSpasstransistortemperatureisgreaterthanμFThiseffectivedissipates(VIN–VOUT)ILIMITuntilthermalshutdowncapacitancereferstothecapacitancethattheLDOistriggeredandthedeviceturnsoffAsthedeviceseesunderoperatingbiasvoltageandtemperaturecoolsdown,itisturnedonbytheinternalthermalconditionsthatis,thecapacitanceaftertakingbothshutdowncircuitIfthefaultconditioncontinues,thebiasvoltageandtemperaturederatingintodevicecyclesbetweencurrentlimitandthermalconsiderationInadditiontoallowingtheuseofshutdownSeetheThermalInformationsectionforcheaperdielectrics,thiscapabilityofbeingstablewithmoredetailsμFeffectivecapacitancealsoenablestheuseofThePMOSpasselementintheTLVxxhasasmallerfootprintcapacitorsthathavehigherderatingbuiltinbodydiodethatconductscurrentwhentheinsizeandspaceconstrainedapplicationsvoltageatOUTexceedsthevoltageatINThisNotethatusingaμFratedcapacitorattheoutputcurrentisnotlimited,soifextendedreversevoltageoftheLDOdoesnotensurestabilitybecausetheoperationisanticipated,externallimitingtooftheeffectivecapacitanceunderthespecifiedoperatingratedoutputcurrentisrecommendedconditionswouldbelessthanμFMaximumESRshouldbelessthanmΩShutdownAlthoughaninputcapacitorisnotrequiredforTheenablepin(EN)isactivehighThedeviceisstability,itisgoodanalogdesignpracticetoconnectenabledwhenvoltageatENpingoesaboveVaμFtoμF,lowESRcapacitoracrosstheINThisrelativelylowervalueofvoltagerequiredtoturnpinandGNDinoftheregulatorThiscapacitortheLDOoncanbeexploitedtopowertheLDOwithacounteractsreactiveinputsourcesandimprovesGPIOofrecentprocessorswhoseGPIOLogictransientresponse,noiserejection,andripplevoltagelevelislowerthantraditionalmicrocontrollersrejectionAhighervaluecapacitormaybenecessaryThedeviceisturnedOFFwhentheENpinisheldatiflarge,fastrisetimeloadtransientsareanticipated,lessthanVWhenshutdowncapabilityisnotorifthedeviceisnotlocatedclosetothepowerrequired,ENcanbeconnectedtotheINpinsourceIfsourceimpedanceismorethanΩ,aμFinputcapacitormaybenecessarytoensurestabilityCopyright–,TexasInstrumentsIncorporatedP=(VV)IDINOUTOUTTLVxxwwwticomSLVSAC–SEPTEMBER–REVISEDJULYDropoutVoltageForgoodreliability,thermalprotectionshouldtriggeratleastCabovethemaximumexpectedambientTheTLVxxusesaPMOSpasstransistortoconditionoftheparticularapplicationThisachievelowdropoutWhen(VIN–VOUT)islessthanconfigurationproducesaworstcasejunctionthedropoutvoltage(VDO),thePMOSpassdeviceistemperatureofCatthehighestexpectedinthelinearregionofoperationandtheambienttemperatureandworstcaseloadinputtooutputresistanceistheRDS(ON)ofthePMOSpasselementVDOscalesapproximatelywithoutputTheinternalprotectioncircuitryoftheTLVxxhascurrentbecausethePMOSdevicebehavesasabeendesignedtoprotectagainstoverloadconditionsresistorindropoutItwasnotintendedtoreplaceproperheatsinkingContinuouslyrunningtheTLVxxintothermalAswithanylinearregulator,PSRRandtransientshutdowndegradesdevicereliabilityresponsearedegradedas(VIN–VOUT)approachesdropoutThiseffectisshowninFigureinthePowerDissipationTypicalCharacteristicssectionTheabilitytoremoveheatfromthedieisdifferentforTransientResponseeachpackagetype,presentingdifferentconsiderationsintheprintedcircuitboard(PCB)Aswithanyregulator,increasingthesizeofthelayoutThePCBareaaroundthedevicethatisfreeoutputcapacitorreducesoverundershootmagnitudeofothercomponentsmovestheheatfromthedevicebutincreasesthedurationofth

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