Product Sample & Technical Tools & Support & Folder Buy Documents Software Community TPS22901,TPS22902,TPS22902B SLVS803D–NOVEMBER2008–REVISEDJANUARY2015 TPS2290x 3.6-V, 500-mA, 78-mΩ ON-Resistance Load Switch With Controlled Turnon 1 Features 2 Applications • IntegratedP-ChannelLoadSwitch • PersonalDigitalAssistants(PDAs) 1 • LowInputVoltage:1Vto3.6V • CellularPhones • ON-Resistance(TypicalValues) • GPSDevices – r =78mΩ atV =3.6V • MP3Players ON IN – r =93mΩ atV =2.5V • DigitalCameras ON IN – r =109mΩatV =1.8V • PeripheralPorts ON IN – r =146mΩatV =1.2V • PortableInstrumentation ON IN • 500mAMaximumContinuousSwitchCurrent • RFModules • QuiescentCurrent:82nAat1.8V 3 Description • ShutdownCurrent:44nAat1.8V The TPS22901, TPS22902, and TPS22902B are • LowControlInputThresholdsEnableUseof small, low ON-resistance (r ) load switches with a 1.2-V,1.8-V,2.5-V,and3.3-VLogic ON controlled turnon. These devices contain a P-channel • ControlledSlewRatetoAvoidInrushCurrents MOSFETthatoperatesoveraninputvoltagerangeof – t =40 μsatV =1.8V(TPS22901/2) 1.0 V to 3.6 V. The switch is controlled by an on/off r IN input (ON), which can interface directly with low- – t =220μsatV =1.8V(TPS22902B) r IN voltage control signals. In the TPS22902 and • QuickOutputDischarge(TPS22902/2B) TPS22902B, an 88-Ω on-chip load resistor is added • ESDPerformanceTestedPerJESD22 for output quick discharge when the switch is turned off. – 2000-VHumanBodyModel (A114-B,ClassII) The TPS22901, TPS22902, and TPS22902B are available in a space-saving 4-pin DSBGA (YFP) with – 1000-VCharged-DeviceModel(C101) 0.4-mm pitch. These devices are characterized for • Four-PinWafer-Chip-ScaleDSBGAPackage operation over the free-air temperature range of – 0.8-mm ×0.8-mm,0.4-mmPitch, –40°Cto85°C. 0.5-mmHeight(YFP) DeviceInformation(1) PARTNUMBER PACKAGE BODYSIZE(NOM) TPS22901 TPS22902 DSBGA(4) 0.80mm×0.80mm TPS22902B (1) For all available packages, see the orderable addendum at theendofthedatasheet. 4 Typical Application Schematic LOAD V V VBATT SMPS IN OUT (see Note A) ON TPS22901/02/02B CIN= 1µF CL OFF CL RL GND GND GND A. Switched-modepowersupply 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

TPS22901,TPS22902,TPS22902B SLVS803D–NOVEMBER2008–REVISEDJANUARY2015 www.ti.com Table of Contents 1 Features.................................................................. 1 9 ParameterMeasurementInformation................19 2 Applications........................................................... 1 10 DetailedDescription........................................... 20 3 Description............................................................. 1 10.1 Overview...............................................................20 4 TypicalApplicationSchematic............................. 1 10.2 FunctionalBlockDiagram.....................................20 5 RevisionHistory..................................................... 2 10.3 FeatureDescription...............................................20 10.4 DeviceFunctionalModes......................................20 6 DeviceComparisonTable..................................... 3 11 ApplicationandImplementation........................ 21 7 PinConfigurationandFunctions......................... 3 11.1 ApplicationInformation..........................................21 8 Specifications......................................................... 4 11.2 TypicalApplication................................................21 8.1 AbsoluteMaximumRatings .....................................4 12 PowerSupplyRecommendations..................... 24 8.2 ESDRatings..............................................................4 13 Layout................................................................... 24 8.3 RecommendedOperatingConditions.......................4 8.4 ThermalInformation..................................................4 13.1 LayoutGuidelines.................................................24 8.5 ElectricalCharacteristics...........................................5 13.2 LayoutExample....................................................24 8.6 SwitchingCharacteristics(V =1.1V).....................6 14 DeviceandDocumentationSupport................. 25 IN 8.7 SwitchingCharacteristics(V =1.2V).....................6 14.1 RelatedLinks........................................................25 IN 8.8 SwitchingCharacteristics(V =1.8V).....................7 14.2 Trademarks...........................................................25 IN 8.9 SwitchingCharacteristics(V =2.5V).....................7 14.3 ElectrostaticDischargeCaution............................25 IN 8.10 SwitchingCharacteristics(V =3.0V)...................8 14.4 Glossary................................................................25 IN 8.11 SwitchingCharacteristics(V =3.6V)...................8 15 Mechanical,Packaging,andOrderable IN 8.12 TypicalDCCharacteristics......................................9 Information........................................................... 25 5 Revision History NOTE:Pagenumbersforpreviousrevisionsmaydifferfrompagenumbersinthecurrentversion. ChangesfromRevisionC(December2012)toRevisionD Page • AddedESDRatingtable,FeatureDescriptionsection,DeviceFunctionalModes,ApplicationandImplementation section,PowerSupplyRecommendationssection,Layoutsection,DeviceandDocumentationSupportsection,and Mechanical,Packaging,andOrderableInformationsection.................................................................................................. 1 • DeletedtheORDERINGINFORMATIONtable...................................................................................................................... 3 ChangesfromRevisionB(March2009)toRevisionC Page • ChangedtheORDERINGINFORMATIONtable.................................................................................................................... 3 2 SubmitDocumentationFeedback Copyright©2008–2015,TexasInstrumentsIncorporated ProductFolderLinks:TPS22901 TPS22902 TPS22902B

TPS22901,TPS22902,TPS22902B www.ti.com SLVS803D–NOVEMBER2008–REVISEDJANUARY2015 6 Device Comparison Table R at1.8V RISETIME QUICKOUTPUT MAXOUTPUT ON(TYP) (TYPat1.8V) DISCHARGE(1) CURRENT ENABLE TPS22901 No 40μs TPS22902 109mΩ Yes 500mA Activehigh TPS22902B 220μs Yes (1) Thisfeaturedischargestheoutputoftheswitchtogroundthroughan88Ωresistor,preventingthe outputfromfloating. 7 Pin Configuration and Functions YFPPackage 4-PinDSBGA B B A A 2 1 1 2 Laser MarkingView BumpView PinAssignments B ON GND A V V IN OUT 2 1 PinFunctions PIN I/O DESCRIPTION NO. NAME A1 V O Switchoutput OUT A2 V I Switchinput,bypassthisinputwithaceramiccapacitortoground IN B1 GND - Ground B2 ON I Switchcontrolinput,activehigh Copyright©2008–2015,TexasInstrumentsIncorporated SubmitDocumentationFeedback 3 ProductFolderLinks:TPS22901 TPS22902 TPS22902B

TPS22901,TPS22902,TPS22902B SLVS803D–NOVEMBER2008–REVISEDJANUARY2015 www.ti.com 8 Specifications 8.1 Absolute Maximum Ratings overoperatingfree-airtemperaturerange(unlessotherwisenoted)(1) MIN MAX UNIT V Inputvoltage –0.3 4 V IN V Outputvoltage V +0.3 V OUT IN V Inputvoltage –0.3 4 V ON P PowerdissipationatT =25°C 0.48 W A I Maximumcontinuousswitchcurrent 500 mA MAX T Operatingfree-airtemperature –40 85 °C A T Maximumleadtemperature(10-ssolderingtime) 300 °C lead T Storagetemperature –65 150 °C stg (1) StressesbeyondthoselistedunderAbsoluteMaximumRatingsmaycausepermanentdamagetothedevice.Thesearestressratings only,whichdonotimplyfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunderRecommended OperatingConditions.Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmayaffectdevicereliability. 8.2 ESD Ratings VALUE UNIT Humanbodymodel(HBM),perANSI/ESDA/JEDECJS-001(1) ±2000 V(ESD) Electrostaticdischarge Charged-devicemodel(CDM),perJEDECspecificationJESD22- ±1000 V C101(2) (1) JEDECdocumentJEP155statesthat500-VHBMallowssafemanufacturingwithastandardESDcontrolprocess. (2) JEDECdocumentJEP157statesthat250-VCDMallowssafemanufacturingwithastandardESDcontrolprocess. 8.3 Recommended Operating Conditions MIN MAX UNIT V Inputvoltage 1 3.6 V IN V Outputvoltage V V OUT IN V High-levelinputvoltage,ON 0.85 3.6 V IH V Low-levelinputvoltage,ON 0.4 V IL C Inputcapacitor See (1) μF IN (1) SeeInputCapacitor(Optional). 8.4 Thermal Information TPS2290X THERMALMETRIC(1) YFP(DSBGA) UNIT 4PINS R Junction-to-ambientthermalresistance 192.1 θJA R Junction-to-case(top)thermalresistance 2.3 θJC(top) R Junction-to-boardthermalresistance 35.8 °C/W θJB ψ Junction-to-topcharacterizationparameter 11.8 JT ψ Junction-to-boardcharacterizationparameter 35.6 JB (1) Formoreinformationabouttraditionalandnewthermalmetrics,seetheICPackageThermalMetricsapplicationreport,SPRA953. 4 SubmitDocumentationFeedback Copyright©2008–2015,TexasInstrumentsIncorporated ProductFolderLinks:TPS22901 TPS22902 TPS22902B

TPS22901,TPS22902,TPS22902B www.ti.com SLVS803D–NOVEMBER2008–REVISEDJANUARY2015 8.5 Electrical Characteristics V =1.0Vto3.6V,T =–40°Cto85°C(unlessotherwisenoted).TypicalvaluesareforT =25°C IN A A PARAMETER TESTCONDITIONS T MIN TYP MAX UNIT A V =1.1V Full 37 120 IN I Quiescentcurrent I =0,V =V V =1.8V Full 82 235 nA Q OUT IN ON IN V =3.6V Full 204 880 IN V =1.1V Full 22 210 IN I OFF-statesupplycurrent V =GND,V =Open V =1.8V Full 44 260 nA IN(OFF) ON OUT IN V =3.6V Full 137 700 IN V =1.1V Full 22 140 IN I OFF-stateswitchcurrent V =GND,V =0V V =1.8V Full 45 230 nA IN(LEAKAGE) ON OUT IN V =3.6V Full 137 610 IN 25°C 78 95 V =3.6V IN Full 95 25°C 93 110 V =2.5V IN Full 110 25°C 109 130 r ON-stateresistance I =-200mA V =1.8V mΩ ON OUT IN Full 130 25°C 146 200 V =1.2V IN Full 200 25°C 174 330 V =1.1V IN Full 330 V =3.3V,V =0,I =30mA r Outputpulldownresistance IN ON OUT 25°C 88 120 Ω PD (TPS22902/TPS22902Bonly) I ONinputleakagecurrent V =1.1Vto3.6VorGND Full 25 nA ON ON Copyright©2008–2015,TexasInstrumentsIncorporated SubmitDocumentationFeedback 5 ProductFolderLinks:TPS22901 TPS22902 TPS22902B

TPS22901,TPS22902,TPS22902B SLVS803D–NOVEMBER2008–REVISEDJANUARY2015 www.ti.com 8.6 Switching Characteristics (V = 1.1 V) IN V =1.1V,T =25°C(unlessotherwisenoted) IN A TPS22901 TPS22902(1) TPS22902B(1) PARAMETER TESTCONDITIONS UNIT MIN TYP MAX MIN TYP MAX MIN TYP MAX C =0.1μF 108 108 531 L t Turn-ONtime R =500Ω C =1μF 131 131 596 μs ON L L C =3.3μF 153 153 659 L C =0.1μF 39 11 11 L t Turn-OFFtime R =500Ω C =1μF 317 69 67 μs OFF L L C =3.3μF 1105 238 225 L C =0.1μF 70 70 365 L t V risetime R =500Ω C =1μF 78 78 367 μs r OUT L L C =3.3μF 92 92 395 L C =0.1μF 107 18 21 L t V falltime R =500Ω C =1μF 966 175 189 μs f OUT L L C =3.3μF 3532 632 565 L (1) QuickOutputDischarge 8.7 Switching Characteristics (V = 1.2 V) IN V =1.2V,T =25°C(unlessotherwisenoted) IN A TPS22901 TPS22902(1) TPS22902B(1) PARAMETER TESTCONDITIONS UNIT MIN TYP MAX MIN TYP MAX MIN TYP MAX C =0.1μF 96 96 471 L t Turn-ONtime R =500Ω C =1μF 116 116 527 μs ON L L C =3.3μF 135 135 587 L C =0.1μF 39 10 10 L t Turn-OFFtime R =500Ω C =1μF 317 62 61 μs OFF L L C =3.3μF 1110 210 199 L C =0.1μF 62 62 324 L t V risetime R =500Ω C =1μF 69 69 325 μs r OUT L L C =3.3μF 81 81 350 L C =0.1μF 109 17 20 L t V falltime R =500Ω C =1μF 995 163 175 μs f OUT L L C =3.3μF 3650 587 523 L (1) QuickOutputDischarge 6 SubmitDocumentationFeedback Copyright©2008–2015,TexasInstrumentsIncorporated ProductFolderLinks:TPS22901 TPS22902 TPS22902B

TPS22901,TPS22902,TPS22902B www.ti.com SLVS803D–NOVEMBER2008–REVISEDJANUARY2015 8.8 Switching Characteristics (V = 1.8 V) IN V =1.8V,T =25°C(unlessotherwisenoted) IN A TPS22901 TPS22902(1) TPS22902B(1) PARAMETER TESTCONDITIONS UNIT MIN TYP MAX MIN TYP MAX MIN TYP MAX C =0.1μF 61 61 302 L t Turn-ONtime R =500Ω C =1μF 72 72 335 μs ON L L C =3.3μF 83 83 367 L C =0.1μF 38 8 8 L t Turn-OFFtime R =500Ω C =1μF 317 49 49 μs OFF L L C =3.3μF 1135 169 167 L C =0.1μF 40 40 220 L t V risetime R =500Ω C =1μF 45 45 220 μs r OUT L L C =3.3μF 53 53 235 L C =0.1μF 111 15 15 L t V falltime R =500Ω C =1μF 1020 140 159 μs f OUT L L C =3.3μF 3700 517 481 L (1) QuickOutputDischarge 8.9 Switching Characteristics (V = 2.5 V) IN V =2.5V,T =25°C(unlessotherwisenoted) IN A TPS22901 TPS22902(1) TPS22902B(1) PARAMETER TESTCONDITIONS UNIT MIN TYP MAX MIN TYP MAX MIN TYP MAX C =0.1μF 45 45 223 L t Turn-ONtime R =500Ω C =1μF 53 53 246 μs ON L L C =3.3μF 61 61 268 L C =0.1μF 38 7 7 L t Turn-OFFtime R =500Ω C =1μF 314 46 47 μs OFF L L C =3.3μF 1140 161 158 L C =0.1μF 32 32 175 L t V risetime R =500Ω C =1μF 35 35 175 μs r OUT L L C =3.3μF 41 41 187 L C =0.1μF 113 14 18 L t V falltime R =500Ω C =1μF 1040 139 185 μs f OUT L L C =3.3μF 3795 516 471 L (1) QuickOutputDischarge Copyright©2008–2015,TexasInstrumentsIncorporated SubmitDocumentationFeedback 7 ProductFolderLinks:TPS22901 TPS22902 TPS22902B

TPS22901,TPS22902,TPS22902B SLVS803D–NOVEMBER2008–REVISEDJANUARY2015 www.ti.com 8.10 Switching Characteristics (V = 3.0 V) IN V =3.0V,T =25°C(unlessotherwisenoted) IN A TPS22901 TPS22902(1) TPS22902B(1) PARAMETER TESTCONDITIONS UNIT MIN TYP MAX MIN TYP MAX MIN TYP MAX C =0.1μF 38 38 191 L t Turn-ONtime R =500Ω C =1μF 45 45 211 μs ON L L C =3.3μF 53 53 231 L C =0.1μF 38 7 7 L t Turn-OFFtime R =500Ω C =1μF 320 46 46 μs OFF L L C =3.3μF 1145 53 156 L C =0.1μF 28 28 159 L t V risetime R =500Ω C =1μF 31 31 160 μs r OUT L L C =3.3μF 37 37 170 L C =0.1μF 114 14 17 L t V falltime R =500Ω C =1μF 1045 139 160 μs f OUT L L C =3.3μF 3815 509 473 L (1) QuickOutputDischarge 8.11 Switching Characteristics (V = 3.6 V) IN V =3.6V,T =25°C(unlessotherwisenoted) IN A TPS22901 TPS22902(1) TPS22902B(1) PARAMETER TESTCONDITIONS UNIT MIN TYP MAX MIN TYP MAX MIN TYP MAX C =0.1μF 33 33 166 L t Turn-ONtime R =500Ω C =1μF 39 39 183 μs ON L L C =3.3μF 46 46 201 L C =0.1μF 38 7 7 L t Turn-OFFtime R =500Ω C =1μF 322 46 45 μs OFF L L C =3.3μF 1145 156 155 L C =0.1μF 25 25 146 L t V risetime R =500Ω C =1μF 28 28 146 μs r OUT L L C =3.3μF 34 34 156 L C =0.1μF 116 14 17 L t V falltime R =500Ω C =1μF 1060 139 161 μs f OUT L L C =3.3μF 3840 512 475 L (1) QuickOutputDischarge 8 SubmitDocumentationFeedback Copyright©2008–2015,TexasInstrumentsIncorporated ProductFolderLinks:TPS22901 TPS22902 TPS22902B

TPS22901,TPS22902,TPS22902B www.ti.com SLVS803D–NOVEMBER2008–REVISEDJANUARY2015 8.12 Typical DC Characteristics 1.0 75 0.9 0.8 70 0.7 Ω) ΩON-State Resistance,()rON 000...456 e Resistance,r(mON6605 0.3 at St 0.2 ON- 55 0.1 0.0 50 0.7 0.8 0.9 1.0 1.11.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.12.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3.0 3.13.2 3.3 –40 25 85 InputVoltage,VIN(V) Temperature(°C) Figure1.rONvsVIN Figure2.rONvsTemperature(VIN=3.3V) 100 200 90 180 80 160 A) Voltage Drop (mV) 3456700000 Vdrop= 3V.3drVop= 2V.5drVop= 1V.8drVoVpd=r o1p.2= V1.0V Quiescent Current, I(nIN1116802400000 20 40 10 20 0 0 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Load Current (A) InputVoltage,VIN(V) Figure3.VoltageDropvs.LoadCurrent Figure4.QuiescentCurrentvsV (V =V ,I =0) IN ON IN OUT 250 120 200 100 A) (nN Quiescent Current, II110500 ICurrent (nA)IN(OFF)468000 50 20 0 0 –40 25 85 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Temperature(°C) InputVoltage,VIN(V) Figure5.QuiescentCurrentvsTemperature(VIN=3.3V, Figure6.IIN(OFF)vsVIN(VON=0V) I =0) OUT Copyright©2008–2015,TexasInstrumentsIncorporated SubmitDocumentationFeedback 9 ProductFolderLinks:TPS22901 TPS22902 TPS22902B

TPS22901,TPS22902,TPS22902B SLVS803D–NOVEMBER2008–REVISEDJANUARY2015 www.ti.com Typical DC Characteristics (continued) 250 120 225 100 200 ICurrent (nA)IN(OFF)11110572700555 I(Leakage) Current (nA)IN468000 50 20 25 0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 –40 25 85 InputVoltage,VIN(V) Temperature(°C) Figure7.IIN(OFF)vsTemperature(VIN=3.3V) Figure8.IIN(Leakage)vsVIN(IOUT=0) 250 4.0 225 3.5 VIN= 3.6V VIN= 3.3V 200 3.0 VIN= 3V Current (nA) 115705 V)22..05 VIN= 2.5V (Leakage) 110205 V(OUT1.5 VINV=IN 1V.=I2N 1V=.5 1V.8V IIN 75 1.0 VIN= 1.1V 50 0.5 25 0.0 0 –0.5 –40 25 85 0.3 0.4 0.5 0.6 0.7 0.8 Temperature (°C) InputVoltage,VON(V) Figure9. I (Leakage)vsTemperature(V =3.3V) Figure10.ON-InputThreshold IN IN 10 SubmitDocumentationFeedback Copyright©2008–2015,TexasInstrumentsIncorporated ProductFolderLinks:TPS22901 TPS22902 TPS22902B

TPS22901,TPS22902,TPS22902B www.ti.com SLVS803D–NOVEMBER2008–REVISEDJANUARY2015 8.12.1 TypicalACCharacteristics 8.12.1.1 TPS22901 130 42 120 VIN= 3.3V 110 40 CRLL== 05.010µΩF 100 tOFF 90 tfall 38 µt/t(s)risefall 678000 VCRILLN=== 05 3.01.03µΩVF µt/t(s)ONOFF 3346 50 tON 32 40 trise 30 30 20 10 28 –50 –40 –30 –20 –10 0 10 20 30 40 50 60 70 80 90 100 –50–40–30–20–10 0 10 20 30 40 50 60 70 80 90 100 Temperature (°C) Temperature (°C) Figure11.trise/tfallvsTemperature Figure12.tON/tOFFvsTemperature 8.12.1.2 TPS22902 30 40 28 35 26 tON trise 30 24 µt/t(s)risefall 122802 VCRILLN=== 05 3.01.03µΩVF µt/t(s)ONOFF 212055 VCRILLN=== 05 3.01.03µΩVF 16 tfall tOFF 10 14 5 12 10 0 –50 –40 –30 –20 –10 0 10 20 30 40 50 60 70 80 90 100 –50–40–30–20–10 0 10 20 30 40 50 60 70 80 90 100 Temperature (°C) Temperature (°C) Figure13.trise/tfallvsTemperature Figure14.tON/tOFFvsTemperature 8.12.1.3 TPS22902B 170 200 160 190 150 180 170 140 160 tON 130 trise 150 120 140 110 VIN= 3.3V 130 VIN= 3.3V µt/t(s)risefall107890000 CRLL== 05.010µΩF µt/t(s)ONOFF1118901200000 CRLL== 05.010µΩF 60 70 50 60 40 50 30 tfall 3400 tOFF 20 20 10 10 0 0 –50 –35 –20 –5 10 25 40 55 70 85 100 –50 –35 –20 –5 10 25 40 55 70 85 100 Temperature (°C) Temperature (°C) Figure15.t /t vsTemperature Figure16.t /t vsTemperature rise fall ON OFF Copyright©2008–2015,TexasInstrumentsIncorporated SubmitDocumentationFeedback 11 ProductFolderLinks:TPS22901 TPS22902 TPS22902B

TPS22901,TPS22902,TPS22902B SLVS803D–NOVEMBER2008–REVISEDJANUARY2015 www.ti.com Typical AC Characteristics (continued) 8.12.1.4 TPS22901andTPS22902 2.00 8.00 2.00 400 11..8600 IOUT 76..0000 11..8600 IOUT 335000 1.40 1.40 1.20 5.00 1.20 250 1.00 4.00 1.00 200 Control InputVoltage (V) ––––000000000.........462024688000000000 VON –––0123132.....0000..0000000000Output Current (mA) Control InputVoltage (V) ––––000000000.........462024688000000000 VON –0511––5.0051100005000Output Current (mA) –1.00 CL= 0.1µF –4.00 –1.00 CL= 0.1µF –200 ––11..4200 RVILN== 5 30.03ΩV ––56..0000 ––11..4200 RVILN== 1 31.3ΩV ––235000 –1.60 –1.60 –1.80 –7.00 –1.80 –350 –2.00 –8.00 –2.00 –400 –50 0 50 100 150 200 250 300 350 400 450 –10 0 10 20 30 40 50 60 70 80 90 Time (µs) Time (µs) Figure17.t Response Figure18.t Response ON ON 2.00 8.00 2.00 400 11..8600 IOUT 76..0000 11..8600 IOUT 335000 1.40 1.40 1.20 5.00 1.20 250 1.00 4.00 1.00 200 Control InputVoltage (V) ––––000000000.........462024688000000000 VON –––00123132.....0.0000..000000000005Output Current (mA) Control InputVoltage (V) ––––000000000.........462024688000000000 VON –0511––5.0051100005000Output Current (mA) –1.00 CL= 3.3µF –4.00 –1.00 CL= 3.3µF –200 ––11..4200 RVILN== 5 30.03ΩV ––56..0000 ––11..4200 RVILN== 1 31.3ΩV ––235000 –1.60 –1.60 –1.80 –7.00 –1.80 –350 –2.00 –8.00 –2.00 –400 –50 0 50 100 150 200 250 300 350 400 450 –50 0 50 100 150 200 250 300 350 400 450 Time (µs) Time (µs) Figure19.t Response Figure20.t Response ON ON 2.00 4.00 2.00 199 1.80 3.50 1.80 180 1.60 1.60 160 1.40 IOUT 3.00 1.40 140 1.20 2.50 1.20 IOUT 120 1.00 2.00 1.00 VON 100 Control InputVoltage (V) ––––000000000.........462024688000000000 VON –––0011011.....0505..5500000000Output Current (mA) Control InputVoltage (V) ––––000000000.........462024688000000000 ––––062842846.000000000 Output Current (mA) –1.00 CL= 0.1µF –2.00 –1.00 CL= 0.1µF –100 ––11..4200 RVILN== 5 10.02ΩV –2.50 ––11..4200 RVILN== 1 11.2ΩV ––114200 –3.00 –1.60 –1.60 –160 –1.80 –3.50 –1.80 –180 –2.00 –4.00 –2.00 –200 –50 0 50 100 150 200 250 300 350 400 450 –50 0 50 100 150 200 250 300 350 400 450 Time (µs) Time (µs) Figure21.t Response Figure22.t Response ON ON 12 SubmitDocumentationFeedback Copyright©2008–2015,TexasInstrumentsIncorporated ProductFolderLinks:TPS22901 TPS22902 TPS22902B

TPS22901,TPS22902,TPS22902B www.ti.com SLVS803D–NOVEMBER2008–REVISEDJANUARY2015 Typical AC Characteristics (continued) 2.00 4.00 2.00 199 1.80 3.50 1.80 180 1.60 1.60 160 3.00 11..2400 IOUT 2.50 11..2400 IOUT 112400 1.00 2.00 1.00 VON 100 Control InputVoltage (V) ––––000000000.........462024688000000000 VON –––0011011.....0505..5500000000Output Current (mA) Control InputVoltage (V) ––––000000000.........462024688000000000 ––––062842846.000000000 Output Current (mA) –1.00 CL= 3.3µF –2.00 –1.00 CL= 3.3µF –100 ––11..4200 RVILN== 5 10.02ΩV –2.50 ––11..4200 RVILN== 1 11.2ΩV ––114200 –3.00 –1.60 –1.60 –160 –1.80 –3.50 –1.80 –180 –2.00 –4.00 –2.00 –200 –50 0 50 100 150 200 250 300 350 400 450 –50 0 50 100 150 200 250 300 350 400 450 Time (µs) Time (µs) Figure23.t Response Figure24.t Response ON ON 8.12.1.5 TPS22901 2.5 10.00 2.5 499 2.2 CL= 0.1µF 9.00 2.2 CL= 0.1µF 450 2.0 RL= 500Ω 8.00 2.0 RL= 11Ω 400 1.8 VIN= 3.3V 7.00 1.8 VIN= 3.3V 350 1.6 1.6 1.4 IOUT 6.00 1.4 IOUT 300 Control InputVoltage (V) –2468201100000...00000002 VON –0123451.......00000000000000Output Current (mA) Control InputVoltage (V) –2468201100000...00000002 VON 0–11225.5050500000000 Output Current (mA) –400 –2.00 –400 –600 –600 –150 –800 –3.00 –800 –200 –1.0 –4.00 –1.0 –1.2 –5.00 –1.2 –250 –1.5 –6.00 –1.5 –300 –50 0 50 100 150 200 250 300 350 400 450 –50 0 50 100 150 200 250 300 350 400 450 Time (µs) Time (µs) Figure25.t Response Figure26.t Response OFF OFF 2.5 10.00 2.5 499 2.2 CL= 3.3µF 9.00 2.2 CL= 3.3µF 450 2.0 RL= 500Ω 8.00 2.0 RL= 11Ω 400 1.8 VIN= 3.3V 7.00 1.8 VIN= 3.3V 350 1.6 1.6 1.4 6.00 1.4 300 Control InputVoltage (V) –2468201100000...00000002 VON IOUT –0123451.......00000000000000Output Current (mA) Control InputVoltage (V) –2468201100000...00000002 VON IOUT 0–11225.5050500000000 Output Current (mA) –400 –2.00 –400 –600 –600 –150 –800 –3.00 –800 –200 –1.0 –4.00 –1.0 –1.2 –5.00 –1.2 –250 –1.5 –6.00 –1.5 –300 –10 0 10 20 30 40 50 60 70 80 90 –50 0 50 100 150 200 250 300 350 400 450 Time (µs) Time (µs) Figure27.t Response Figure28.t Response OFF OFF Copyright©2008–2015,TexasInstrumentsIncorporated SubmitDocumentationFeedback 13 ProductFolderLinks:TPS22901 TPS22902 TPS22902B

TPS22901,TPS22902,TPS22902B SLVS803D–NOVEMBER2008–REVISEDJANUARY2015 www.ti.com Typical AC Characteristics (continued) 2.5 5.00 2.5 249 2.2 CL= 0.1µF 4.50 2.2 CL= 0.1µF 220 2.0 RL= 500Ω 2.0 RL= 11Ω 200 1.8 VIN= 1.2V 4.00 1.8 VIN= 1.2V 180 1.6 3.50 1.6 160 1.4 3.00 1.4 140 Control InputVoltage (V) –00100010........40068222 VON IOUT –012255....005050000000Output Current (mA) Control InputVoltage (V) –2468201100000...00000002 VON IOUT 0–116284.202000000000 Output Current (mA) –0.4 –1.00 –400 –40 –0.6 –600 –60 –0.8 –1.50 –800 –80 –1.0 –2.00 –1.0 –100 –1.2 –2.50 –1.2 –120 –1.5 –3.00 –1.5 –150 –50 0 50 100 150 200 250 300 350 400 450 –5.0 0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 Time (µs) Time (µs) Figure29.t Response Figure30.t Response OFF OFF 2.5 5.00 2.5 249 2.2 CL= 3.3µF 4.50 2.2 CL= 3.3µF 220 2.0 RL= 500Ω 4.00 2.0 RL= 11Ω 200 11..68 VIN= 1.2V 3.50 11..68 VIN= 1.2V 118600 1.4 3.00 1.4 140 Control InputVoltage (V) –00000011........24682002 VON IOUT –0011220.......05050550000000Output Current (mA) Control InputVoltage (V) –00000011........82246002 VONIOUT 0–116284.202000000000 Output Current (mA) –0.4 –1.00 –0.4 –40 –0.6 –0.6 –60 –0.8 –1.50 –0.8 –80 –1.0 –2.00 –1.0 –100 –1.2 –2.50 –1.2 –120 –1.5 –3.00 –1.5 –150 –1.0 0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 –50 0 50 100 150 200 250 300 350 400 450 Time (ms) Time (µs) Figure31.t Response Figure32.t Response OFF OFF 8.12.1.6 TPS22902 2.00 8.00 2.00 400 11..8600 IOUT CL= 0.1µF 7.00 11..8600 IOUT CL= 0.1µF 350 1.40 RL= 500Ω 6.00 1.40 RL= 11Ω 300 1.20 VIN= 3.3V 5.00 1.20 VIN= 3.3V 250 1.00 VON 4.00 1.00 VON 200 Control InputVoltage (V) ––––000000000.........462024688000000000 –––0123132.....0000..0000000000Output Current (mA) Control InputVoltage (V) ––––000000000.........462024688000000000 –0511––5.0051100005000Output Current (mA) –1.00 –4.00 –1.00 –200 –1.20 –5.00 –1.20 –250 –1.40 –1.40 –6.00 –300 –1.60 –1.60 –1.80 –7.00 –1.80 –350 –2.00 –8.00 –2.00 –400 –50 0 50 100 150 200 250 300 350 400 450 –10 0 10 20 30 40 50 60 70 80 90 Time (µs) Time (µs) Figure33.t Response Figure34.t Response OFF OFF 14 SubmitDocumentationFeedback Copyright©2008–2015,TexasInstrumentsIncorporated ProductFolderLinks:TPS22901 TPS22902 TPS22902B

TPS22901,TPS22902,TPS22902B www.ti.com SLVS803D–NOVEMBER2008–REVISEDJANUARY2015 Typical AC Characteristics (continued) 2.00 8.00 2.00 400 11..8600 IOUT CL= 3.3µF 7.00 11..8600 IOUT CL= 3.3µF 350 1.40 RL= 500Ω 6.00 1.40 RL= 11Ω 300 1.20 VIN= 3.3V 5.00 1.20 VIN= 3.3V 250 1.00 VON 4.00 1.00 VON 200 Control InputVoltage (V) ––––000000000.........462024688000000000 –––0123132.....0000..0000000000Output Current (mA) Control InputVoltage (V) ––––000000000.........462024688000000000 –0511––5.0051100005000Output Current (mA) –1.00 –4.00 –1.00 –200 –1.20 –5.00 –1.20 –250 –1.40 –1.40 –6.00 –300 –1.60 –1.60 –1.80 –7.00 –1.80 –350 –2.00 –8.00 –2.00 –400 –200 0 200 400 600 800 1000 1200 1400 1600 1800 –50 0 50 100 150 200 250 300 350 400 450 Time (µs) Time (µs) Figure35.t Response Figure36.t Response OFF OFF 2.00 4.00 2.00 200 11..8600 CL= 0.1µF 3.50 11..8600 CL= 0.1µF 118600 11..2400 IOUT RVILN== 5 10.02ΩV 32..0500 11..2400 IOUT RVILN== 1 11.2ΩV 112400 1.00 VON 2.00 1.00 VON 100 Control InputVoltage (V) ––––000000000.........462024688000000000 –––0115115...0005..0500000000Output Current (mA) Control InputVoltage (V) ––––000000000.........462024688000000000 ––––026482648.000000000 Output Current (mA) –1.00 –2.00 –1.00 –100 –1.20 –2.50 –1.20 –120 –1.40 –1.40 –140 –3.00 –1.60 –1.60 –160 –1.80 –3.50 –1.80 –180 –2.00 –4.00 –2.00 –200 –50 0 50 100 150 200 250 300 350 400 450 –10 0 10 20 30 40 50 60 70 80 90 Time (µs) Time (µs) Figure37.t Response Figure38.t Response OFF OFF 2.00 4.00 2.00 200 11..8600 CL= 3.3µF 3.50 11..8600 CL= 3.3µF 118600 1.40 IOUT RL= 500Ω 3.00 1.40 RL= 11Ω 140 1.20 VIN= 1.2V 2.50 1.20 IOUT VIN= 1.2V 120 1.00 VON 2.00 1.00 VON 100 Control InputVoltage (V) ––––000000000.........462024688000000000 –––0011011.....0505..5500000000Output Current (mA) Control InputVoltage (V) ––––000000000.........462024688000000000 ––––064286428.000000000 Output Current (mA) –1.00 –2.00 –1.00 –100 –1.20 –2.50 –1.20 –120 –1.40 –1.40 –140 –3.00 –1.60 –1.60 –160 –1.80 –3.50 –1.80 –180 –2.00 –4.00 –2.00 –200 –200 0 200 400 600 800 1000 1200 1400 1600 1800 –50 0 50 100 150 200 250 300 350 400 450 Time (µs) Time (µs) Figure39.t Response Figure40.t Response OFF OFF Copyright©2008–2015,TexasInstrumentsIncorporated SubmitDocumentationFeedback 15 ProductFolderLinks:TPS22901 TPS22902 TPS22902B

TPS22901,TPS22902,TPS22902B SLVS803D–NOVEMBER2008–REVISEDJANUARY2015 www.ti.com Typical AC Characteristics (continued) 8.12.1.7 TPS22902B 1.2 3.5 0.35 101...091 VON CRVILLN=== 05 3.01.03µΩVF 0.01 323...082 IOUT CRVILLN=== 01 3.11.3ΩµVF 000...323280 2.6 0.26 0.8 2.4 0.24 Control InputVoltage (V) 0000000.......4736512 IOUT 0.05 Output Current (A) Control InputVoltage (V) 112101012.........400668822 VON 000000000.........111112200204680268 Output Current (A) 0.0 0.00 0.4 0.04 –0.1 0.2 0.02 –0.2 0.0 0.00 –0.3 –0.2 –0.02 –0.4 0.00 –0.5 –0.05 –500 –200 0.0 200 400 600 800 1000 1200 1500 –1000 –500 0.0 500 1000 1500 2000 2500 3000 Time (µs) Time (µs) Figure41.tONResponse Figure42.tONResponse 1.2 3.5 0.35 1.1 CL= 3µF 3.2 IOUT CL= 3µF 0.32 1.0 RL= 500Ω 0.01 3.0 RL= 11Ω 0.30 0.9 VON VIN= 3.3V 2.8 VIN= 3.3V 0.28 2.6 0.26 0.8 2.4 0.24 Control InputVoltage (V) 0000000.......4736512 IOUT 0.05 Output Current (A) Control InputVoltage (V) 11211012........40068822 VON 00000000........1111122020468028 Output Current (A) 0.6 0.06 0.0 0.00 0.4 0.04 –0.1 0.2 0.02 –0.2 0.0 0.00 –0.3 –0.2 –0.02 –0.4 –0.00 –0.5 –0.05 –1000 –500 0.0 500 1000 1500 2000 2500 3000 –1000 –500 0.0 500 1000 1500 2000 2500 3000 Time (µs) Time (µs) Figure43.tONResponse Figure44.tONResponse 1.2 3.5 0.35 1.1 CL= 0.1µF 3.2 CL= 0.1µF 0.32 10..09 VON RVILN== 5 10.02ΩV 0.01 32..08 RVILN== 1 11.2ΩV 00..3208 0.8 2.6 0.26 2.4 0.24 Control InputVoltage (V) 0000000.......4736512 IOUT 0.05 Output Current (A) Control InputVoltage (V) 112101012.........400668822 VON IOUT 000000000.........112101012400668822 Output Current (A) 0.0 0.00 0.4 0.04 –0.1 0.2 0.02 –0.2 0.0 0.00 –0.3 –0.2 –0.02 –0.4 –0.00 –0.5 –0.05 –5000 –200 0.0 200 400 600 800 1000 1200 1500 –1000 –500 0.0 500 1000 1500 2000 2500 3000 Time (µs) Time (µs) Figure45.tONResponse Figure46.tONResponse 16 SubmitDocumentationFeedback Copyright©2008–2015,TexasInstrumentsIncorporated ProductFolderLinks:TPS22901 TPS22902 TPS22902B

TPS22901,TPS22902,TPS22902B www.ti.com SLVS803D–NOVEMBER2008–REVISEDJANUARY2015 Typical AC Characteristics (continued) 1.2 3.5 0.35 1.1 CL= 3µF 3.2 CL= 3µF 0.32 1.0 RL= 500Ω 0.01 3.0 RL= 11Ω 0.30 0.9 VON VIN= 1.2V 2.8 VIN= 1.2V 0.28 2.6 0.26 0.8 2.4 0.24 Control InputVoltage (V) 0000000.......4736521 IOUT 0.05 Output Current (A) Control InputVoltage (V) 11211012........40068822 IOUT 00000000........1111122020468028 Output Current (A) 0.0 0.00 00..46 VON 00..0064 –0.1 0.2 0.02 –0.2 0.0 0.00 –0.3 –0.2 –0.02 –0.4 –0.00 –0.5 –0.05 –1000 –500 0.0 500 1000 1500 2000 2500 3000 –1000 –500 0.0 500 1000 1500 2000 2500 3000 Time (µs) Time (µs) Figure47.tONResponse Figure48.tONResponse 1.2 3.5 0.35 11..01 CRLL== 05.010µΩF 0.01 33..02 IOUT CRLL== 01.11ΩµF 00..3320 0.9 VON VIN= 3.3V 2.8 VIN= 3.3V 0.28 2.6 0.26 0.8 2.4 0.24 Control InputVoltage (V) 0000000.......4736512 IOUT 0.05 Output Current (A) Control InputVoltage (V) 11211012........40068822 VON 00000000........1111122020468028 Output Current (A) 0.6 0.06 0.0 0.00 0.4 0.04 –0.1 0.2 0.02 –0.2 0.0 0.00 –0.3 –0.2 –0.02 –0.4 –0.00 –0.5 –0.05 –5000 –200 0.0 200 400 600 800 1000 1200 1500 –250 –100 0.0 100 200 300 400 500 600 750 Time (µs) Time (µs) Figure49.tOFFResponse Figure50.tOFFResponse 1.2 3.5 0.35 11..01 CRLL== 350µ0FΩ 0.01 33..02 IOUT CRLL== 311µΩF 00..3320 0.9 VON VIN= 3.3V 2.8 VIN= 3.3V 0.28 2.6 0.26 0.8 2.4 0.24 Control InputVoltage (V) 0000000.......4736512 IOUT 0.05 Output Current (A) Control InputVoltage (V) 11211012........40068822 VON 00000000........1111122020468028 Output Current (A) 0.6 0.06 0.0 0.00 0.4 0.04 –0.1 0.2 0.02 –0.2 0.0 0.00 –0.3 –0.2 –0.02 –0.4 –0.00 –0.5 –0.05 –5000 –200 0.0 200 400 600 800 1000 1200 1500 –250 –100 0.0 100 200 300 400 500 600 750 Time (µs) Time (µs) Figure51.tOFFResponse Figure52.tOFFResponse Copyright©2008–2015,TexasInstrumentsIncorporated SubmitDocumentationFeedback 17 ProductFolderLinks:TPS22901 TPS22902 TPS22902B

TPS22901,TPS22902,TPS22902B SLVS803D–NOVEMBER2008–REVISEDJANUARY2015 www.ti.com Typical AC Characteristics (continued) 1.2 3.5 0.35 1.1 CL= 0.1µF 3.2 CL= 0.1µF 0.32 1.0 RL= 500Ω 0.01 3.0 RL= 11Ω 0.30 0.9 VON VIN= 1.2V 2.8 VIN= 1.2V 0.28 2.6 0.26 0.8 2.4 0.24 Control InputVoltage (V) 0000000.......4736512 IOUT 0.05 Output Current (A) Control InputVoltage (V) 112101012.........400668822 VIOOUNT 000000000.........111112200204680268 Output Current (A) 0.0 0.00 0.4 0.04 –0.1 0.2 0.02 –0.2 0.0 0.00 –0.3 –0.2 –0.02 –0.4 –0.00 –0.5 –0.05 –50 –20 0.0 20 40 60 80 100 120 150 –250 –100 0.0 100 200 300 400 500 600 750 Time (µs) Time (µs) Figure53.tOFFResponse Figure54.tOFFResponse 1.2 3.5 0.35 1.1 CL= 3µF 3.2 CL= 3µF 0.32 1.0 RL= 500Ω 0.01 3.0 RL= 11Ω 0.30 0.9 VON VIN= 1.2V 2.8 VIN= 1.2V 0.28 2.6 0.26 0.8 2.4 0.24 Control InputVoltage (V) 0000000.......4736512 IOUT 0.05 Output Current (A) Control InputVoltage (V) 112101012.........400668822 VIOOUNT 000000000.........111112200204680268 Output Current (A) 0.0 0.00 0.4 0.04 –0.1 0.2 0.02 –0.2 0.0 0.00 –0.3 –0.2 –0.02 –0.4 –0.00 –0.5 –0.05 –1000 –500 0.0 500 1000 1500 2000 2500 3000 –250 –100 0.0 100 200 300 400 500 600 750 Time (µs) Time (µs) Figure55.tOFFResponse Figure56.tOFFResponse 18 SubmitDocumentationFeedback Copyright©2008–2015,TexasInstrumentsIncorporated ProductFolderLinks:TPS22901 TPS22902 TPS22902B

TPS22901,TPS22902,TPS22902B www.ti.com SLVS803D–NOVEMBER2008–REVISEDJANUARY2015 9 Parameter Measurement Information V IN V OUT ON(A) C R L L + TPS22901/02 OFF – C =1µF IN GND GND GND TEST CIRCUIT 1.8V V ON VON VON/2 VON/2 tr tf 0V 0V t t ON OFF V 90% 90% OUT VOH 10% 10% V V /2 V /2 OUT OUT OUT V OL t /t WAVEFORMS ON OFF A. t andt ofthecontrolsignalis100ns. rise fall Figure57. TestCircuitandt /t Waveforms ON OFF Copyright©2008–2015,TexasInstrumentsIncorporated SubmitDocumentationFeedback 19 ProductFolderLinks:TPS22901 TPS22902 TPS22902B

TPS22901,TPS22902,TPS22902B SLVS803D–NOVEMBER2008–REVISEDJANUARY2015 www.ti.com 10 Detailed Description 10.1 Overview The TPS2290x and TPS22902B is a single channel, 500-mA load switch in a small, space-saving DSBGA-4 package. These devices implement a P-channel MOSFET to provide a low ON-resistance for a low voltage drop acrossthedevice.Acontrolledrisetimeisusedinapplicationstolimittheinrushcurrent. 10.2 Functional Block Diagram A2 V IN Turn-OnSlewRate ControlledDriver B2 Control ON Logic ESD Protection A1 V OUT Output Discharge (TPS22902,TPS22902B Only) B1 GND 10.3 Feature Description 10.3.1 ON/OFFControl The ON pin controls the state of the switch. Activating ON continuously holds the switch in the on state. ON is active-high and has a low threshold, making it capable of interfacing with low-voltage signals. The ON pin is compatible with standard GPIO logic threshold, and it can be used with any microcontroller with 1.2 V, 1.8 V, 2.5 Vor3.3VGPIOs. 10.3.2 QuickOutputDischarge The TPS2290x and TPS22902B includes the Quick Output Discharge (QOD) feature. When the switch is disabled, a discharge resistance with a typical value of 88 Ω is connected between the output and ground. This resistancepullsdowntheoutputandpreventsitfromfloatingwhenthedeviceisdisabled. 10.4 Device Functional Modes Table1liststheVOURTpinconnectionsforaparticulardeviceasdeterminedbytheONpin. Table1.VOUTFunctionTable ON(ControlInput) TPS22901 TPS22902/2B L Open GND H VIN VIN 20 SubmitDocumentationFeedback Copyright©2008–2015,TexasInstrumentsIncorporated ProductFolderLinks:TPS22901 TPS22902 TPS22902B

TPS22901,TPS22902,TPS22902B www.ti.com SLVS803D–NOVEMBER2008–REVISEDJANUARY2015 11 Application and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validateandtesttheirdesignimplementationtoconfirmsystemfunctionality. 11.1 Application Information 11.1.1 InputCapacitor(Optional) To limit the voltage drop on the input supply caused by transient inrush currents when the switch turns on into a discharged load capacitor, a capacitor needs to be placed between V and GND. A 1-μF ceramic capacitor, C , IN IN placed close to the pins is usually sufficient. Higher values of C can be use to further reduce the voltage drop IN during high current application. When switching heavy loads, TI recommends using an input capacitor about 10 timeshigherthantheoutputcapacitorinordertoavoidexcessivevoltagedrop. 11.1.2 OutputCapacitor(Optional) Because of the integral body diode in the PMOS switch, a C greater than C is highly recommended. A C IN L L greater than C can cause V to exceed V when the system supply is removed. This could result in current IN OUT IN flowthroughthebodydiodefromV toV . OUT IN 11.2 Typical Application LOAD V V VBATT SMPS IN OUT (see Note A) ON TPS22901/02/02B CIN= 1µF CL OFF CL RL GND GND GND A. Switched-modepowersupply Figure58. TypicalApplicationSchematic 11.2.1 DesignRequirements Table2.DesignParameters DESIGNPARAMETER EXAMPLEVALUE V 1.8V IN C 4.7µF L Loadcurrent 500mA AmbientTemperature 25°C Maximuminrushcurrent 200mA Copyright©2008–2015,TexasInstrumentsIncorporated SubmitDocumentationFeedback 21 ProductFolderLinks:TPS22901 TPS22902 TPS22902B

TPS22901,TPS22902,TPS22902B SLVS803D–NOVEMBER2008–REVISEDJANUARY2015 www.ti.com 11.2.2 DetailedDesignProcedure 11.2.2.1 ManagingInrushCurrent When the switch is enabled, the output capacitors must be charged up from 0 V to the set value (1.8 V in this example). This charge arrives in the form of inrush current. Inrush current can be calculated using the following equation: dV I =C ´ OUT INRUSH L dt where: • C =Outputcapacitance L • dV =Outputvoltage OUT • dt=Risetime (1) The TPS2290x and TPS22902B offers a controlled rise time for minimizing inrush current. This device can be selected based upon the minimum acceptable rise time which can be calculated using the design requirements and the inrush current equation. An output capacitance of 4.7 µF will be used since the amount of inrush current increaseswithoutputcapacitance: 200mA=4.7µF×1.8V/dt dt=42.3µs (2) To ensure an inrush current of less than 200 mA, a device with a rise time greater than 42.3 µs must be used. The TPS22902B has a typical rise time of 220 µs at 1.8 V which meets the above design requirements. The TPS22901/2 has a faster rise time of 40 µs at 1.8 V, and this would result in an inrush current larger than desired. 11.2.2.2 VINtoVOUTVoltageDrop The voltage drop from VIN to VOUT is determined by the ON-resistance of the device and the load current. R ON can be found in Electrical Characteristics and is dependent on temperature. When the value of R is found, the ON followingequationcanbeusedtocalculatethevoltagedropacrossthedevice: ΔV=I ×R LOAD ON where: • ΔV=Voltagedropacrossthedevice • I =Loadcurrent LOAD • R =ON-resistanceofthedevice (3) ON At V = 1.8 V, the TPS22901/2/2B has an R value of 109 mΩ. Using this value and the defined load current, IN ON theaboveequationcanbeevaluated: ΔV=500mA×109mΩ ΔV=54.5mV (4) Therefore,thevoltagedropacrossthedevicewillbe54.5mV. 22 SubmitDocumentationFeedback Copyright©2008–2015,TexasInstrumentsIncorporated ProductFolderLinks:TPS22901 TPS22902 TPS22902B

TPS22901,TPS22902,TPS22902B www.ti.com SLVS803D–NOVEMBER2008–REVISEDJANUARY2015 11.2.3 ApplicationCurve Figure59showstheexpectedvoltagedropacrossthedevicefordifferentloadcurrentsandinputvoltages. 100 90 80 70 V) Vdrop= 1.0V m 60 p ( Vdrop= 1.2V o e Dr 50 Vdrop= 1.8V g Volta 40 Vdrop= 2.5V 30 Vdrop= 3.3V 20 10 0 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 Load Current (A) Figure59. VoltageDropvsLoadCurrent Copyright©2008–2015,TexasInstrumentsIncorporated SubmitDocumentationFeedback 23 ProductFolderLinks:TPS22901 TPS22902 TPS22902B

TPS22901,TPS22902,TPS22902B SLVS803D–NOVEMBER2008–REVISEDJANUARY2015 www.ti.com 12 Power Supply Recommendations The device is designed to operate with a VIN range of 1 V to 3.6 V. This supply must be well regulated and placed as close to the device terminals as possible. It must also be able to withstand all transient and load currents, using a recommended input capacitance of 1 µF if necessary. If the supply is located more than a few inches from the device terminals, additional bulk capacitance may be required in addition to the ceramic bypass capacitors. If additional bulk capacitance is required, an electrolytic, tantalum, or ceramic capacitor of 10 µF may besufficient. 13 Layout 13.1 Layout Guidelines For best performance, V , V , and GND traces should be as short and wide as possible to help minimize the IN OUT parasitic electrical effects. To be most effective, the input and output capacitors should be placed close to the devicetominimizetheeffectsthatparasitictraceinductancesmayhaveonnormaloperation. For higher reliability, the maximum IC junction temperature, T , should be restricted to 125˚C under normal J(max) operating conditions. Junction temperature is directly proportional to power dissipation in the device and the two arerelatedby T =T +θ ×P J A JA D where: • T =Junctiontemperatureofthedevice J • T =Ambienttemperature A • P =Powerdissipationinsidethedevice D • θ =Junctiontoambientthermalresistance.SeeThermalInformationsectionofthedatasheet.This JA parameterishighlydependentonboardlayout. (5) 13.2 Layout Example Figure60. LayoutExampleSchematic 24 SubmitDocumentationFeedback Copyright©2008–2015,TexasInstrumentsIncorporated ProductFolderLinks:TPS22901 TPS22902 TPS22902B

TPS22901,TPS22902,TPS22902B www.ti.com SLVS803D–NOVEMBER2008–REVISEDJANUARY2015 14 Device and Documentation Support 14.1 Related Links The table below lists quick access links. Categories include technical documents, support and community resources,toolsandsoftware,andquickaccesstosampleorbuy. Table3.RelatedLinks TECHNICAL TOOLS& SUPPORT& PARTS PRODUCTFOLDER SAMPLE&BUY DOCUMENTS SOFTWARE COMMUNITY TPS22901 Clickhere Clickhere Clickhere Clickhere Clickhere TPS22902 Clickhere Clickhere Clickhere Clickhere Clickhere TPS22902B Clickhere Clickhere Clickhere Clickhere Clickhere 14.2 Trademarks Alltrademarksarethepropertyoftheirrespectiveowners. 14.3 Electrostatic Discharge Caution Thesedeviceshavelimitedbuilt-inESDprotection.Theleadsshouldbeshortedtogetherorthedeviceplacedinconductivefoam duringstorageorhandlingtopreventelectrostaticdamagetotheMOSgates. 14.4 Glossary SLYZ022—TIGlossary. Thisglossarylistsandexplainsterms,acronyms,anddefinitions. 15 Mechanical, Packaging, and Orderable Information The following pages include mechanical, packaging, and orderable information. This information is the most current data available for the designated devices. This data is subject to change without notice and revision of thisdocument.Forbrowser-basedversionsofthisdatasheet,refertotheleft-handnavigation. Copyright©2008–2015,TexasInstrumentsIncorporated SubmitDocumentationFeedback 25 ProductFolderLinks:TPS22901 TPS22902 TPS22902B

PACKAGE OPTION ADDENDUM www.ti.com 25-Oct-2016 PACKAGING INFORMATION Orderable Device Status Package Type Package Pins Package Eco Plan Lead/Ball Finish MSL Peak Temp Op Temp (°C) Device Marking Samples (1) Drawing Qty (2) (6) (3) (4/5) TPS22901YFPR ACTIVE DSBGA YFP 4 3000 Green (RoHS SNAGCU Level-1-260C-UNLIM -40 to 85 3P & no Sb/Br) (3 ~ 5) TPS22902BYFPR ACTIVE DSBGA YFP 4 3000 Green (RoHS SNAGCU Level-1-260C-UNLIM -40 to 85 3S & no Sb/Br) 3 TPS22902YFPR ACTIVE DSBGA YFP 4 3000 Green (RoHS SNAGCU Level-1-260C-UNLIM -40 to 85 3R & no Sb/Br) (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Device Marking for that device. (6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish value exceeds the maximum column width. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and Addendum-Page 1

PACKAGE OPTION ADDENDUM www.ti.com 25-Oct-2016 continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 2

PACKAGE MATERIALS INFORMATION www.ti.com 18-Jan-2020 TAPE AND REEL INFORMATION *Alldimensionsarenominal Device Package Package Pins SPQ Reel Reel A0 B0 K0 P1 W Pin1 Type Drawing Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant (mm) W1(mm) TPS22901YFPR DSBGA YFP 4 3000 178.0 9.2 0.89 0.89 0.58 4.0 8.0 Q1 TPS22902BYFPR DSBGA YFP 4 3000 180.0 8.4 0.89 0.89 0.58 4.0 8.0 Q1 TPS22902YFPR DSBGA YFP 4 3000 180.0 8.4 0.89 0.89 0.58 4.0 8.0 Q1 TPS22902YFPR DSBGA YFP 4 3000 178.0 9.2 0.89 0.89 0.58 4.0 8.0 Q1 PackMaterials-Page1

PACKAGE MATERIALS INFORMATION www.ti.com 18-Jan-2020 *Alldimensionsarenominal Device PackageType PackageDrawing Pins SPQ Length(mm) Width(mm) Height(mm) TPS22901YFPR DSBGA YFP 4 3000 220.0 220.0 35.0 TPS22902BYFPR DSBGA YFP 4 3000 182.0 182.0 20.0 TPS22902YFPR DSBGA YFP 4 3000 182.0 182.0 20.0 TPS22902YFPR DSBGA YFP 4 3000 270.0 225.0 227.0 PackMaterials-Page2

PACKAGE OUTLINE YFP0004 DSBGA - 0.5 mm max height SCALE 10.000 DIE SIZE BALL GRID ARRAY B E A BALL A1 CORNER D C 0.5 MAX SEATING PLANE 0.19 0.13 BALL TYP 0.05 C 0.4 TYP B D: Max = 0.79 mm, Min = 0.73 mm SYMM 0.4 E: Max = 0.79 mm, Min = 0.73 mm TYP A 0.25 4X 0.21 1 2 0.015 C A B SYMM 4223507/A 01/2017 NOTES: 1. All linear dimensions are in millimeters. Any dimensions in parenthesis are for reference only. Dimensioning and tolerancing per ASME Y14.5M. 2. This drawing is subject to change without notice. www.ti.com

EXAMPLE BOARD LAYOUT YFP0004 DSBGA - 0.5 mm max height DIE SIZE BALL GRID ARRAY (0.4) TYP 4X ( 0.23) 1 2 A SYMM (0.4) TYP B SYMM LAND PATTERN EXAMPLE EXPOSED METAL SHOWN SCALE:50X ( 0.23) 0.05 MAX 0.05 MIN METAL UNDER METAL SOLDER MASK EXPOSED SOLDER MASK EXPOSED ( 0.23) METAL OPENING METAL SOLDER MASK OPENING NON-SOLDER MASK SOLDER MASK DEFINED DEFINED (PREFERRED) SOLDER MASK DETAILS NOT TO SCALE 4223507/A 01/2017 NOTES: (continued) 3. Final dimensions may vary due to manufacturing tolerance considerations and also routing constraints. For more information, see Texas Instruments literature number SNVA009 (www.ti.com/lit/snva009). www.ti.com

EXAMPLE STENCIL DESIGN YFP0004 DSBGA - 0.5 mm max height DIE SIZE BALL GRID ARRAY (0.4) TYP 4X ( 0.25) (R0.05) TYP 1 2 A SYMM (0.4) TYP B METAL TYP SYMM SOLDER PASTE EXAMPLE BASED ON 0.1 mm THICK STENCIL SCALE:50X 4223507/A 01/2017 NOTES: (continued) 4. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. www.ti.com

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