升降压电源管理芯片 TPS63000

(3,25mmx3,25mm)µFR1R2C210µFR3C3C110µFVIN1.8Vto5.5VVOUT3.3Vupto1200mATPS63000TPS63000TPS63001TPS63002SLVS520–MARCH2006HIGHEFFICIENTSINGLEINDUCTORBUCK-BOOSTCONVERTERWITH1.8-ASWITCHES•Upto95%EfficiencyTheTPS6300xdevicesprovideapowersupplysolutionforproductspoweredbyeitheratwo-cell,or•1200-mAOutputCurrentat3.3VinStepDownthree-cellalkaline,NiCdorNiMH,orone-cellLi-IonorMode(VIN3.6V...5.5V)Li-polymerbattery.Outputcurrentscangoashighas•upto800-mAOutputCurrentat3.3VinBoost1200mAwhileusingasingle-cellLi-IonorLi-PolymerMode(VIN2.4V)Battery,anddischargeitdownto2.5Vorlower.The•AutomaticTransitionbetweenStepDownandbuck-boostconverterisbasedonafixedfrequency,BoostModepulse-width-modulation(PWM)controllerusingsynchronousrectificationtoobtainmaximum•DeviceQuiescentCurrentlessthan50μAefficiency.Atlowloadcurrentstheconverterenters•InputVoltageRange:1.8Vto5.5VthePowerSavemodetomaintainahighefficiency•FixedandAdjustableOutputVoltageOptionsoverawideloadcurrentrange.ThePowerSavefrom1.2Vto5.5Vmodecanbedisabled,forcingtheconvertertooperateatafixedswitchingfrequency.Themaximum•PowerSaveModeforImprovedEfficiencyataveragecurrentintheswitchesislimitedtoatypicalLowOutputPowervalueof1800mA.Theoutputvoltagecanbe•ForcedfixedFrequencyOperationandprogrammedbyanexternalresistordivider,orisSynchronizationpossiblefixedinternallyonthechip.Theconvertercanbedisabledtominimizebatterydrain.Duringshutdown,•LoadDisconnectDuringShutdowntheloadiscompletelydisconnectedfromthebattery.•Over-TemperatureProtectionThedeviceispackagedina10-pinQFN•AvailableinSmall3mmx3mm,QFN-10PowerPAD™packagemeasuring3mmx3mmPackage(DRC).•AllTwo-CellandThree-CellAlkaline,NiCdorNiMHorSingle-CellLiBatteryPoweredProducts•PortableAudioPlayers•PDAs•CellularPhones•PersonalMedicalProducts•WhiteLED`sPleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.PowerPADisatrademarkofTexasInstruments.PRODUCTIONDATAinformationiscurrentasofpublicationdate.Copyright©2006,TexasInstrumentsIncorporatedProductsconformtospecificationsperthetermsoftheTexasInstrumentsstandardwarranty.Productionprocessingdoesnotnecessarilyincludetestingofallparameters.–MARCH2006Thesedeviceshavelimitedbuilt-inESDprotection.TheleadsshouldbeshortedtogetherorthedeviceplacedinconductivefoamduringstorageorhandlingtopreventelectrostaticdamagetotheMOSgates.AVAILABLEOUTPUTVOLTAGEOPTIONS(1)OUTPUTVOLTAGEPACKAGETAPACKAGEPARTNUMBER(2)DC/DCMARKINGAdjustableBNQTPS63000DRC40°Cto85°C3.3VBNR10-PinQFNTPS63001DRC5.0VBNSTPS63002DRC(1)Contactthefactorytocheckavailabilityofotherfixedoutputvoltageversions.(2)TheDRCpackageisavailabletapedandreeled.AddRsuffixtodevicetype(e.g.,TPS63000DRCR)toorderquantitiesof3000devicesperreel.overoperatingfree-airtemperaturerange(unlessotherwisenoted)(1)TPS6300xInputvoltagerangeonVBAT,L1,L2,VOUT,PS,EN,FB-0.3Vto7VOperatingvirtualjunctiontemperaturerange,TJ-40°Cto150°CStoragetemperaturerangeTstg-65°Cto150°C(1)Stressesbeyondthoselistedunderabsolutemaximumratingsmaycausepermanentdamagetothedevice.Thesearestressratingsonly,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunderrecommendedoperatingconditionsisnotimplied.Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmayaffectdevicereliability.THERMALRESISTANCEPOWERRATINGDERATINGFACTORABOVEPACKAGEΘJATA≤25°CTA=25°CDRC48.7°C/W2054mW21mW/°CMINNOMMAXUNITSupplyvoltageatVBAT,VI1.85.5VOperatingfreeairtemperaturerange,TA-4085°COperatingvirtualjunctiontemperaturerange,TJ-40125°C2SubmitDocumentationFeedback–MARCH2006overrecommendedfree-airtemperaturerangeandoverrecommendedinputvoltagerange(typicalatanambienttemperaturerangeof25°C)(unlessotherwisenoted)DC/DCSTAGEPARAMETERTESTCONDITIONSMINTYPMAXUNITVIInputvoltagerange1.85.5VVIInputvoltagerangeforstartup1.95.5VVOTPS63000outputvoltagerange1.25.5VVFBTPS63000feedbackvoltage495500505mVfOscillatorfrequency12501500kHzFrequencyrangefor12501800kHzsynchronizationISWSwitchcurrentlimitVIN=VINA=3.6V,TA=25°C160018002000mAHighsideswitchonresistanceVIN=VINA=3.6V100mΩLowsideswitchonresistanceVIN=VINA=3.6V100mΩLineregulation0.5%Loadregulation0.5%VIN11.5μAVINA4050μAIO=0mA,VEN=VIN=VINA=3.6VOUTIqQuiescentcurrentV,(adjustableVOUT=3.3V46μAoutputvoltage)FBinputimpedance(fixed1MΩoutputvoltage)ISShutdowncurrentVEN=0V,VIN=VINA=3.6V0.11μACONTROLSTAGEPARAMETERTESTCONDITIONSMINTYPMAXUNITVUVLOUndervoltagelockoutthresholdVLBIvoltagedecreasing1.51.71.8VVILEN,PSinputlowvoltage0.4VVIHEN,PSinputhighvoltage1.2VEN,PSinputcurrentClampedonGNDorVBAT0.010.1μAOvertemperatureprotection140°COvertemperaturehysteresis20°C3SubmitDocumentationFeedback(TOPVIEW)TPS63000TPS63001TPS63