MP1495 稳压器DC-DC开关稳压器

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1、MP1495HighEfficiency3A,16V,500kHzSynchronousStepDownConverterTheFutureofAnalogICTechnologyDESCRIPTIONFEATURESTheMP1495isahigh-frequency,synchronous,•Wide4.5V-to-16VOperatingInputRangerectified,step-down,switch-modeconverter•80mΩ/30mΩLowRDS(ON)InternalPowerwithbuilt-inpowerMOSFETs.ItoffersaveryMOSFET

2、scompactsolutiontoachievea3Acontinuous•High-EfficiencySynchronousModeoutputcurrentwithexcellentloadandlineOperationregulationoverawideinputsupplyrange.The•Fixed500kHzSwitchingFrequencyMP1495hassynchronousmodeoperationfor•Synchronizestoa200kHzto2MHzExternalhigherefficiencyovertheoutputcurrentloadCloc

3、krange.•AAMPower-SaveModeCurrent-modeoperationprovidesfasttransient•InternalSoft-Startresponseandeasesloopstabilization.•OCPProtectionandHiccup•ThermalShutdownFullprotectionfeaturesincludeover-current•OutputAdjustablefrom0.8Vprotectionandthermalshutdown.•Availableinan8-pinTSOT-23packageTheMP1495requ

4、iresaminimalnumberofreadily-availablestandardexternalcomponents,APPLICATIONSandisavailableinaspace-saving8-pin•NotebookSystemsandI/OPowerTSOT23package.•DigitalSet-TopBoxes•Flat-PanelTelevisionandMonitors•DistributedPowerSystemsAllMPSpartsarelead-freeandadheretotheRoHSdirective.ForMPSgreenstatus,plea

5、sevisitMPSwebsiteunderQualityAssurance.“MPS”and“TheFutureofAnalogICTechnology”areRegisteredTrademarksofMonolithicPowerSystems,Inc.TYPICALAPPLICATIONEfficiencyvs.LoadCurrentR4VIN=12V,VOUT=3.3V,AAM=0.5V4.5V-16V2510VININBST100C1C422MP14959533.3V/2A6SWEN/SYNCL190EN/C2SYNCR17VCCR940.2k4785VIN=12VVIN=5V83

6、3kC3R3FB800.190.9k1R2AAMGND13k75VIN=16VR5410k700.010.1110LOADCURRENT(A)MP1495Rev.1.05www.MonolithicPower.com14/13/2016MPSProprietaryInformation.PatentProtected.UnauthorizedPhotocopyandDuplicationProhibited.©2016MPS.AllRightsReserved.MP1495–SYNCHRONOUSSTEP-DOWNCONVERTERORDERINGINFORMATIONPartNumber*P

7、ackageTopMarkingMP1495DJTSOT-23-8ACSForTape&Reel,addsuffix–Z(e.g.MP1495DJ–Z);ForRoHS,compliantpackaging,addsuffix–LF(e.g.MP1495DJ–LF–Z).PACKAGEREFERENCE(1)(5)ABSOLUTEMAXIMUMRATINGSThermalResistanceθJA