tps61029
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(3,25 mm x 3,25 mm)SWC1
10
µFL1
6.8 µH
R1
R2VBATVOUT
FBC22.2 µFC347 µF
LBO
PGNDLBI
PSEN
GND
TPS61020VO3.3 V Up To200 mA
Low BatteryOutputR3
R4R50.9-V To6.5-V InputTPS61020,TPS61024,TPS61025
TPS61026,TPS61027,TPS61028
TPS61029
www.ti.comSLVS451F–SEPTEMBER2003–REVISEDAPRIL2012
96%EFFICIENTSYNCHRONOUSBOOSTCONVERTER
CheckforSamples:TPS61020,TPS61024,TPS61025,TPS61026,TPS61027,TPS61028,TPS61029
FEATURES
DESCRIPTION•96%EfficientSynchronousBoostConverterTheTPS6102xdevicesprovideapowersupply•OutputVoltageRemainsRegulatedWhensolutionforproductspoweredbyeitheraone-cell,InputVoltageExceedsNominalOutputVoltagetwo-cell,orthree-cellalkaline,NiCdorNiMH,orone-•DeviceQuiescentCurrent:25µA(Typ)cellLi-IonorLi-polymerbattery.Outputcurrentscan
goashighas200mAwhileusingasingle-cell•InputVoltageRange:0.9Vto6.5Valkaline,anddischargeitdownto0.9V.Itcanalso•FixedandAdjustableOutputVoltageOptionsbeusedforgenerating5Vat500mAfroma3.3-VUpto5.5VrailoraLi-Ionbattery.Theboostconverterisbased•PowerSaveModeforImprovedEfficiencyatonafixedfrequency,pulse-width-modulation(PWM)
LowOutputPowercontrollerusingasynchronousrectifiertoobtain
maximumefficiency.Atlowloadcurrentsthe•LowBatteryComparatorconverterentersthePowerSavemodetomaintaina•LowEMI-Converter(IntegratedAntiringinghighefficiencyoverawideloadcurrentrange.TheSwitch)PowerSavemodecanbedisabled,forcingthe
•LoadDisconnectDuringShutdownconvertertooperateatafixedswitchingfrequency.
Themaximumpeakcurrentintheboostswitchis•Over-TemperatureProtectionlimitedtoavalueof800mA,1500mAor1800mA•Small3mm×3mmQFN-10Packagedependingonthedeviceversion.
TheTPS6102xdeviceskeeptheoutputvoltageAPPLICATIONSregulatedevenwhentheinputvoltageexceedsthe•AllOne-Cell,Two-CellandThree-CellAlkaline,nominaloutputvoltage.TheoutputvoltagecanbeNiCdorNiMHorSingle-CellLiBatteryprogrammedbyanexternalresistordivider,orisPoweredProductsfixedinternallyonthechip.Theconvertercanbe
disabledtominimizebatterydrain.Duringshutdown,•PortableAudioPlayerstheloadiscompletelydisconnectedfromthebattery.•PDAsAlow-EMImodeisimplementedtoreduceringing•CellularPhonesand,ineffect,lowerradiatedelectromagneticenergy
whentheconverterentersthediscontinuous•PersonalMedicalProductsconductionmode.Thedeviceispackagedina10-pin•CameraWhiteLEDFlashLightQFNPowerPAD™packagemeasuring3mmx3mm
(DRC).
Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.PowerPADisatrademarkofTexasInstruments.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.Copyright©2003–2012,TexasInstrumentsIncorporatedProductsconformtospecificationsperthetermsoftheTexasInstrumentsstandardwarranty.Productionprocessingdoesnotnecessarilyincludetestingofallparameters.TPS61020,TPS61024,TPS61025
TPS61026,TPS61027,TPS61028
TPS61029
SLVS451F–SEPTEMBER2003–REVISEDAPRIL2012www.ti.com
ThisintegratedcircuitcanbedamagedbyESD.TexasInstrumentsrecommendsthatallintegratedcircuitsbehandledwithappropriateprecautions.Failuretoobserveproperhandlingandinstallationprocedurescancausedamage.
ESDdamagecanrangefromsubtleperformancedegradationtocompletedevicefailure.Precisionintegratedcircuitsmaybemoresusceptibletodamagebecauseverysmallparametricchangescouldcausethedevicenottomeetitspublishedspecifications.
AVAILABLEOUTPUTVOLTAGEOPTIONS(1)
OUTPUTPACKAGENOMINALSWITCHTAVOLTAGEPACKAGEPARTNUMBER(2)CURRENTLIMITMARKINGDC/DC
Adjustable1500mABDRTPS61020DRC
Adjustable800mABNETPS61028DRC
Adjustable1800mABRFTPS61029DRC
–40°Cto85°C3.0V1500mABDS10-PinQFNTPS61024DRC
3.3V1500mABDTTPS61025DRC
5V1800mABRDTPS61026DRC
5V1500mABDUTPS61027DRC
(1)Contactthefactorytocheckavailabilityofotherfixedoutputvoltageversions.(2)TheDRCpackageisavailabletapedandreeled.AddRsuffixtodevicetype(e.g.,TPS61020DRCR)toorderquantitiesof3000devicesperreel.AddaTsuffixtothedevicetype(i.e.,TPS61020DRCT)toorderquantitiesof250devicesperreel.
ABSOLUTEMAXIMUMRATINGS
overoperatingfree-airtemperaturerange(unlessotherwisenoted)(1)
TPS6102x
InputvoltagerangeonSW,VOUT,LBO,VBAT,PS,EN,FB,LBI–0.3Vto7V
Operatingvirtualjunctiontemperaturerange,TJ–40°Cto150°C
Storagetemperaturerange,Tstg–65°Cto150°C
(1)Stressesbeyondthoselistedunderabsolutemaximumratingsmaycausepermanentdamagetothedevice.Thesearestressratingsonly,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunderrecommendedoperatingconditionsisnotimplied.Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmayaffectdevicereliability.
DISSIPATIONRATINGSTABLE
THERMALRESISTANCEPOWERRATINGDERATINGFACTORABOVEPACKAGEΘJATA≤25°CTA=25°C
DRC48.7°C/W2054mW21mW/°C
RECOMMENDEDOPERATINGCONDITIONS
MINNOMMAXUNIT
SupplyvoltageatVBAT,VI(TPS61020,TPS61024,TPS61025,TPS61028)0.96.5V
