AN-SY8032-Allwins-ivanchen

ApplicationsNote:AN_SY8032HighEfficiency1MHz,2.5AContinuous,3APeak,SynchronousStepDownRegulatorAN_SY8032Rev.0.4SilergyCorp.Confidential-PreparedforCustomerUseOnly1GeneralDescriptionTheSY8032Aisahigh-efficiency,highfrequencysynchronousstep-downDC-DCregulatorICcapableofdeliveringupto2.5Aoutputcurrent.TheSY8032Aoperatesoverawideinputvoltagerangefrom2.7Vto5.5VandintegratemainswitchandsynchronousswitchwithverylowRDS(ON)tominimizetheconductionloss.Lowoutputvoltagerippleandsmallexternalinductorandcapacitorsizesareachievedwithgreaterthan1MHzswitchingfrequency.OrderingInformationTemperatureCodePackageCodeOptionalSpecCodeSY8032□□□□(□□□□□□□□)□□□□TemperatureCodePackageCodeOptionalSpecCodeSY8032□□□□(□□□□□□□□)□□□□TemperatureRange:-40°Cto85°COrderingNumberPackagetypeNote①SY8032AABCSOT23-6----Features•LowRDS(ON)forinternalswitches(top/bottom):100mΩ/80mΩ,2.5A•2.7-5.5Vinputvoltagerange•2.5Acontinuous,3Apeakloadcurrentcapability•Highswitchingfrequencyminimizestheexternalcomponents:1MHz•Internalsoftstartlimitstheinrushcurrent•100%dropoutoperation•RoHSCompliantandHalogenFree•Compactpackage:SOT23-6.OtherpackagesareavailableuponrequestsApplications•LCDTV•SetTopBox•NetPC•Mini-NotebookPC•AccessPointRouterTypicalApplicationsPGINGNDENCINVINON/OFFLXFBCOUTVOUTR1R2LC1(opt.)PGINGNDENCINVINON/OFFLXFBCOUTVOUTR1R2LC1(opt.)Efficiency(%)Figure1.SchematicdiagramFigure2.EfficiencyvsLoadCurrentAN_SY8032AN_SY8032Rev.0.4SilergyCorp.Confidential-PreparedforCustomerUseOnly2Pinout(topview)SOT23-6TopMark:FKxyz(devicecode:FK,x=yearcode,y=weekcode,z=lotnumbercode)PinNamePinNumberPinDescriptionEN1Enablecontrol.Pullhightoturnon.Donotfloat.GND2GroundpinLX3Inductorpin.Connectthispintotheswitchingnodeofinductor.IN4Inputpin.DecouplethispintoGNDpinwithatleast10uFceramiccap.PG5Powergoodindicator.Opendrainoutputiftheoutputiswithin90%ofregulation;lowotherwise.FB6OutputFeedbackPin.Connectthispintothecenterpointoftheoutputresistordivider(asshowninFigure1)toprogramtheoutputvoltage:Vout=0.6*(1+R1/R2).AbsoluteMaximumRatings(Note1)SupplyInputVoltage------------------------------------------------------------------------------------------6.0VEnable,FBVoltage---------------------------------------------------------------------------------------------VIN+0.6VPowerDissipation,PD@TA=25°C,SOT23-6-----------------------------------------------------------------------------------------------0.6WPackageThermalResistance(Note2)θJA-----------------------------------------------------------------------------------------------------140°C/WθJC------------------------------------------------------------------------------------------------------70°C/WJunctionTemperatureRange----------------------------------------------------------------------------------150°CLeadTemperature(Soldering,10sec.)----------------------------------------------------------------------260°CStorageTemperatureRange-----------------------------------------------------------------------------------65°Cto150°CRecommendedOperatingConditions(Note3)SupplyInputVoltage-----------------------------------------------------------------------------------------2.7Vto5.5VJunctionTemperatureRange---------------------------------------------------------------------------------40°Cto125°CAmbientTemperatureRange---------------------------------------------------------------------------------40°Cto85°CAN_SY8032AN_SY8032Rev.0.4SilergyCorp.Confidential-PreparedforCustomerUseOnly3ElectricalCharacteristics(VIN=5V,VOUT=2.5V,L=2.2uH,COUT=10uF,TA=25°C,unlessotherwisespecified)ParameterSymbolTestConditionsMinTypMaxUnitInputVoltageRangeVIN2.75.5VQuiescentCurrentIQIOUT=0,VFB=VREF⋅105%80μAShutdownCurrentISHDNEN=00.11μAFeedbackReferenceVoltageVREF0.5880.60.612VFBInputCurrentIFBVFB=VIN-5050nAPFETRONRDS(ON),P100mΩNFETRONRDS(ON),N80mΩPFETCurrentLimitILIM3.5AENrisingthresholdVENH1.5VENfallingthresholdVENL0.4VInputUVLOthresholdVUVLO2.7VUVLOhysteresisVHYS0.1VOscillatorFrequencyFOSCIOUT=500mA1MHzMinONTime50nsMaxDutyCycle100%ThermalShutdownTemperatureTSD160°CNote1:Stressesbeyond“AbsoluteMaximumRatings”maycausepermanentdamagetothedevice.Theseareforstressratings.Functionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedintheoperationalsectionsofthespecificationsisnotimplied.Exposuretoabsolutemaximumratingconditionsforextendedperiodsmayaffectdevicereliability.Note2:θJAismeasuredinthenaturalconvectionatTA=25°ConaloweffectivesinglelayerthermalconductivitytestboardofJEDEC51-3thermalmeasurementstandard.Pin2ofSOT23-6packagesisthecasepositionforθJCmeasurement.Note3:Thedeviceisnotguaranteedtofunctionoutsideitsoperatingconditions.AN_SY8032AN_SY8032Rev.0.4SilergyCorp.Confidential-PreparedforCustomerUseOnly4FunctionBlockAN_SY8032AN_SY8032Rev.0.4SilergyCorp.Confidential-PreparedforCustomerUseOnly5TypicalPerformanceCharacteristicsEfficiency(%)AN_SY8032AN_SY8032Rev.0.4SilergyCorp.Confidential-PreparedforCustomerUseOnly6AN_SY8032AN_SY8032Rev.0.4SilergyCorp.Confidential-PreparedforCustomerUseOnly7AN_SY8032AN_SY8032Rev.0.4SilergyCorp.Confidential-Pr