TLV62090 3A High Efficiency Synchronous Step …

1 50556065707580859095100100m1101001k10kI load (mA) Efficiency (%)VIN = VVIN = VVIN = 5 VVOUT = VL = 1 Hf = MHzG002 to HmC222mFR1200kSWTLV62090 SWPower GoodAVINR2160kSSR3500kAGNDPGC410nFVOSDEF CPCNC510nF1213456 PGND PGND7891011123141516 Copyright 2017, Texas Instruments IncorporatedProductFolderOrderNowTechnic alDocumentsTools &SoftwareSupport &CommunityAn IMPORTANTNOTICEat the end of this datasheetaddressesavailability,warranty, changes,use in safety-criticalapplications,intellectual propertymattersand MARCH2012 REVISEDJANUARY2017 TLV620903A High EfficiencySynchronousStep-DownConverterw ith DCS-Control 11 Features1 V to V InputVoltageRange DCS-Control Up To 98% Efficiency PowerSaveMode 20 A OperatingQuiescentCurrent 100%DutyCyclefor LowestDropout MHzTypicalSwitchingFrequency V to VINA djustableOutputVoltage OutputDischargeFunction AdjustableSoftstart HiccupShortCircuitProtection OutputVoltageTracking Pin-to-PinCompatiblewith TPS62090, TLV62095and TPS62095 For ImprovedFeatureSet, See TPS62090 Createa CustomDesignusingthe TLV62090withthe WEBENCH PowerDesigner2 Applications DistributedPowerSupplies Notebook,NetbookComputers HardDiskDrives(HDD) SolidStateDrives(SSD)

2 ProcessorSupply BatteryPoweredApplications3 DescriptionTheTLV62090deviceis a highfrequencysynchronousstep-downconvert eroptimizedfor smallsolutionsize,highefficiencyand suitablefor maximizeefficiency,theconverteroperatesi n pulsewidthmodulation(PWM)modewith a nominalswitchingfrequencyof MHzandit automaticallyenterspowersavemodeoperatio nat loadregulation,the deviceallowsvoltagetrackingto othervoltagerailsand toleratesoutputcapacitorsrangingfrom10 F up to 150 F ,the outputvoltagestart-uprampis controlledby thesoftstartpin,whichallowsoperationas eitherastandalonepowersupplyor in also possibleby configuringtheenable(EN)andpowergood(PG) powersavemode,the deviceoperateswith typically20- enteredautomaticallyandseamlessly,mainta ininghighefficiencyoverthe entireload availablein a 3 mm x 3 mm 16-pinVQFN(RGT) (1)PARTNUMBERPACKAGEBODYSIZE(NOM)TLV6209 0 VQFN(16) x (1) For all availablepackages,see the orderableaddendumatthe end of the OutputCurrent2 TLV62090 SLVSBB9F MARCH2012 : TLV62090 SubmitDocumentationFeedbackCopyright 2012 2017,TexasInstrumentsIncorporatedTableof Contents1 Pin Configurationand Applicationand Deviceand Mechanical,Packaging,and RevisionHistoryNOTE:Pagenumbersfor previousrevisionsmay differfrompagenumbersin the (January2016)to RevisionFPage AddedFeature: Pin-to-PinCompatiblewith TPS62090,TLV62095and AddedFeature: For ImprovedFeatureSet, See AddedWEBENCH informationto theFeatures,DetailedDesignProcedure, AddedSW (AC,less than10 ns) to Addedadditionalfrequencycurvesto AddedTable1, PowerGoodPin (September2015)to RevisionEPage Changedtitle From:3A HighEfficientSynchronousTo:3A ChangedFeaturesFrom:95%ConverterEfficien cyTo: Up To 98% ChangedFeaturesFrom.

3 Two LevelShortCircuitProtectionTo: Changedtext in theDescriptionFrom:the deviceoperatesat typically20 A : the deviceoperateswith typically20- A DeletedNotefromthe pinoutdrawing:The exposedThermalPad is connectedto ChangedthePin FunctionstableI/O ChangedthePin FunctionstableDescriptioncolumnfor pins FB, EN, and ThermalPad ..4 Addedpins CN and CP to the VoltagerangeinAbsoluteMaximumRatings(1). .5 Deleted"Continuoustotal powerdissipation" fromAbsoluteMaximumRatings(1)..5 DeletedNote1 AddedEN = Low to the Descriptionof ChangedLIMFto ILIMFfor Highside FET switchcurrentlimit in ChangedVsto VOUTfor Outputvoltagerangein ChangedFigure1 throughFigure2 ..7 AddedNote1 to MARCH2012 REVISEDJANUARY2017 ProductFolderLinks: TLV62090 SubmitDocumentationFeedbackCopyright 2012 2017,TexasInstrumentsIncorporated Changed"Softstart(SS)and OutputCapacitorduringStartup" To: Softstart(SS)and Changedtext From:"start-upespeciallyfor largeroutputcapacitors>22 F.

4 " To: "start-upespeciallyfor largeroutputcapacitors." inSoftstart(SS)and Rewritethe descriptionin VoltageTracking(SS)..10 Deletedtext "in PFMmodeand with a minimumquiescentcurrentwhile" ChangedVOUT(max)to VOUTin Equation4 ..13 Deletedtext "VOUT(max)= nominaloutputvoltageplus maximumoutputvoltagetolerance" AddedNotetoApplicationand Added10 nF to the descriptionof C4, C5 in Table3 ..15 Updatedthe Isat/DCR(max)columnof Table5 ..16 Deletedtext" The inductorneedsto be ratedfor a saturationcurrentas high as the typicalswitchcurrentlimit,of or accordingto Equation5 and Equation6." ChangedEquation5 and Equation6 ..16 ChangedtheInputand ChangedFigure19 ..18 ChangedFigure20 ..18 ChangesfromRevisionC (May2014)to RevisionDPage MovedStoragetemperatureFrom:ESDR atingsTo:AbsoluteMaximumRatings(1)..5 ChangedtableFrom: AddedPWMmode,TJ= 25 C to Feedbackvoltageaccuracysectionof (April2012)to RevisionCPage AddedESDR atingstable,FeatureDescriptionsection,De viceFunctionalModes,Applicationand Implementationsection,PowerSupplyRecomme ndationssection,Layoutsection,Deviceand DocumentationSupportsection,andMechanica l,Packaging,and Deletedtext: "TPS62090adjustableoutputversion" fromthe Feedbackvoltageaccuracysectionof ChangedFigure1 From:Resistance( ) To: Resistance(m ).

5 7 AddedApplicationCurvesto the DeletedTypicalapplicationsfromthe ApplicationInformationsectionfor: V AdjustableVersion, V AdjustableVersion, V AdjustableVersionand (March2012)to RevisionBPage Changedthe InputvoltagerangeMAXvalueFrom:6V To (March2012)to RevisionAPage ChangedVin 6V To: PadVOSPGND12 SWSW34 DEFPG1314 PGNDEN65781211109 FBAGNDCPCNPVINAVINSSPVIN4 TLV62090 SLVSBB9F MARCH2012 : TLV62090 SubmitDocumentationFeedbackCopyright 2012 2017,TexasInstrumentsIncorporated5 Pin Configurationand FunctionsRGTP ackage16-PinVQFNTop ViewPin , 2I/OSwitchpin of the pin is usedfor internallogicand needsto be pin shouldnot be left pin is high impedanceif the outputvoltageis pin ispulledlow if the outputis belowits pull up resistorcan not be connectedto any voltagehigherthanthe inputvoltageof the of the resistordividerto set the 10 nF capacitorbetweenCP and 10 nF capacitorbetweenCP and A capacitoris connectedto this pin and sets the pin floatingsets the , enablethe devicethis pin needsto be pin low disablesthe pin has a pull downresistorof typically400 k , whichis activewhenEN is , This pin needsto be connectedto the exposedthermalpad is connectedto mustbe solderedfor MARCH2012 REVISEDJANUARY2017 ProductFolderLinks.

6 TLV62090 SubmitDocumentationFeedbackCopyright 2012 2017,TexasInstrumentsIncorporated(1)Stre ssesbeyondthoselistedunder absolutemaximumratings may causepermanentdamageto the stressratingsonly and functionaloperationof the deviceat theseor any otherconditionsbeyondthoseindicatedunder recommendedoperatingconditions is not absolute maximum ratedconditionsfor extendedperiodsmay affectdevicereliability.(2)All voltagevaluesare with respectto networkgroundterminal.(3)Whileswitching6 (1)VALUEUNITMINMAXV oltagerange(2)PVIN,AVIN,FB, SS, EN, DEF,VOS (DC),PG + (AC,less than10 ns)(3) , CP + 7 PowerGoodsink currentPG1mAOperatingjunctiontemperature range,TJ 40150 CStoragetemperature,Tstg 65150 C(1)JEDEC documentJEP155statesthat 500-VHBM allowssafe manufacturingwith a standardESDcontrolprocess.(2)JEDEC documentJEP157statesthat 250-VCDM allowssafe manufacturingwith a (ESD)ElectrostaticdischargeHumanbodymode l(HBM),per ANSI/ESDA/JEDECJS-001,all pins(1) 2000 VChargeddevicemodel(CDM),per JEDEC specificationJESD22-C101,all pins(2) 4085 CTJO peratingjunctiontemperature 40125 C(1)For moreinformationabouttraditionaland new thermalmetrics,see theSemiconductorand IC (1) TLV62090 UNITSVQFN(16 PINS)R JAJunction-to-ambientthermalresistance47 C/WR JC(top)Junction-to-case(top)thermalresis tance60R JBJunction-to-boardthermalresistance20 JBJunction-to-boardcharacterizationparam eter20R JC(bot)Junction-to-case(bottom) MARCH2012 : TLV62090 SubmitDocumentationFeedbackCopyright 2012 2017,TexasInstrumentsIncorporated(1)Cond itions:L = 1 H, COUT= 22 F.

7 For moreinformation,see thePowerSaveModeOperationsectionof this datasheet.(2)For outputvoltages< V, use a 2 x 22 F outputcapacitanceto achieve+3%outputvoltageaccuracyin ,TA= 40 C to 85 C, typicalvaluesare at TA= 25 C (unlessotherwisenoted) switching,FB = FB +5%,into PVINand AVIN20 AIsdShutdowncurrentInto PVINand CThermalshutdownhysteresis20 CCONTROLSIGNALENVHH ighlevelinputvoltageVIN= V to levelinputvoltageVIN= V to = GNDor VIN10100nARPDPull downresistanceEN = Low400k APOWERGOODVTH_PGPowergoodthresholdOutput voltagerising93%95%97%Outputvoltagefalli ng88%90%92%VLLow levelvoltageI(sink)= 1 V10100nAPOWERSWITCHRDS(on)Highside FET on-resistanceISW= 500 mA50m Low side FET on-resistanceISW= 500 mA40m ILIMFH ighside FET 3 = GND,VOUT= V200 VOUT+ 1 VIOUT= 1 A, PWMmode,TJ= 25 C-1%+1%IOUT= 1 A, + 0 mA, VOUT V, PFMmode(1) +3%IOUT= 0 mA, VOUT< V, PFMmode(2) + currentVFB= V10100nALine regulationVOUT= V, V, (A)

8 Switching Frequency (kHz) = VVIN = VVIN = VInput Voltage (V)Switching Frequency (kHz) (A)Switching Frequency (kHz) = VVIN = VVIN = VInput Voltage (V)Switching Frequency (kHz) Voltage [V]Resistance (m:) = -40 CTA = 25 CTA = 85 CVoltage (V)Current (PA) = 85qCTA = 25qCTA = MARCH2012 REVISEDJANUARY2017 ProductFolderLinks: TLV62090 SubmitDocumentationFeedbackCopyright 2012 2017, HighSideFET On-Resistancevs InputVoltageVOUT= VL = 1 HFigure2. QuiescentCurrentvs InputVoltageVOUT= VL = 1 HFigure3. SwitchingFrequencyvs LoadCurrentVOUT= VL = 1 HIOUT= 1 AFigure4. SwitchingFrequencyvs InputVoltageVOUT= VL = 1 HFigure5. SwitchingFrequencyvs LoadCurrentVOUT= VL = 1 HIOUT= 1 AFigure6. SwitchingFrequencyvs InputVoltageLoad (A)Switching Frequency (kHz) = VInput Voltage (V)Switching Frequency (kHz) MARCH2012 : TLV62090 SubmitDocumentationFeedbackCopyright 2012 2017,TexasInstrumentsIncorporatedTypical Characteristics(continued)VOUT= VL = 1 HFigure7.

9 SwitchingFrequencyvs LoadCurrentVOUT= VL = 1 HIOUT= 1 AFigure8. SwitchingFrequencyvs InputVoltageSWMOSFET DriverAnti Shoot ThroughConverter ControlLogicHigh AmplifierPVINPGNDENDEFENM1M2 VOSSWFBD irect ControlandCompensationrampTimertonPGNDDC S - Control Charge PumpforGate driverCPCNSSIssVoltage clampVref limit#32 counterOutput voltagedischargelogic200 M3 VREFPGVFBB andgapUndervoltageLockoutThermal shutdownVin400kWAVINAGND(1)Copyright 2017, Texas Instruments MARCH2012 REVISEDJANUARY2017 ProductFolderLinks: TLV62090 SubmitDocumentationFeedbackCopyright 2012 2017,TexasInstrumentsIncorporated7 TLV62090synchronousswitchedmodeconverter is basedon DCS-Control (directcontrolwith seamlesstransitioninto powersavemode).Thisis an advancedregulationtopologythat combinesthe advantagesofhystereticand topologyoperatesin pulsewidthmodulation(PWM)modefor mediumto heavyloadconditionsand in powersavemodeat light load PWMmode,the converteroperateswith its nominalswitchingfrequencyof MHzhavinga controlledfrequencyvariationoverthe the loadcurrentdecreases,the converterenterspowersavemode,reducingthe switchingfrequencyand minimizingthecurrentconsumptionto achievehighefficiencyoverthe supportsbothoperationmodes(PWMand PFM)usinga singlebuildingblockhavinga seamlesstransitionfromPWMto powersavemodewithouteffectson the TLV62090offersexcellentDC voltageregulationand loadtransientregulation,combinedwith low outputvoltageripple,minimizinginterferen cewith RF (1)The resistoris disconnectedwhenEN is 2017, Texas Instruments IncorporatedSSFBVV = = C !

10 A10 TLV62090 SLVSBB9F MARCH2012 : TLV62090 SubmitDocumentationFeedbackCopyright 2012 2017, (EN)The deviceis enabledby settingthe EN pin to a ,shutdownmodeis forcedif the EN pin ispulledlow with a shutdowncurrentof A. In shutdownmode,the internalpowerswitchesas well asthe entirecontrolcircuitryare turnedoff. An internalresistorof 200 dischargesthe outputthroughthe internalpull-downresistorof 400 k is connectedto the EN pin whenthe EN pin is low. The pull-downresistoris disconnectedwhenthe EN pin is (SS)and HiccupCurrentLimitDuringStartupTo minimizeinrushcurrentduringstartup, the devicehas an adjustablesoftstartdependingon the capacitorvalueconnectedto the SS pin. The devicechargesthe softstartcapacitorwith a constantcurrentof A. The feedbackvoltagefollowsthis voltagewith a fractionof the internalreferencevoltageof V completedoncethe voltageat the softstartcapacitorhas softstarttimeis calculatedusingEquation1.