天高微 MT3410 丝印AS150同步降压

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1、MT34101.5MHz,1.5ASynchronousStep-DownConverterFEATURESGENERALDESCRIPTION•HighEfficiency:Upto96%TheMT3410arehigh-efficiency,highfrequency•1.5MHzConstantFrequencyOperationsynchronousstep-downDC-DCregulatorICscapable•1500mAOutputCurrentofdeliveringupto1.5A

2、outputcurrents.TheMT3410•NoSchottkyDiodeRequiredcanoperateoverawideinputvoltagerangefrom2.3V•2.3Vto6VInputVoltageRangeto6Vandintegratesmainswitchandsynchronous•AdjustableOutputVoltageRangeswitchwithverylowRDS(ON)tominimizetheOptionsfrom0.6VtoVinconducti

3、onloss.•100%DutyCycleLowDropoutOperationItisidealforpoweringportableequipmentthatruns•LowQuiescentCurrent:35µAfromasinglecellLithium-Ion(Li+)battery.Theoutput•SlopeCompensatedCurrentModeControlforvoltagecanberegulatedaslowas0.6V.TheMT3410ExcellentLinean

4、dLoadTransientResponsecanalsorunat100%dutycycleforlowdropout•ShortCircuitProtectionoperation,extendingbatterylifeinportablesystem.•ThermalFaultProtectionThisdeviceofferstwooperationmodes,PWMmode•InrushCurrentLimitandSoftStartandPFMModeswitchingcontrol,w

5、hichallowsahigh•<1µAShutdownCurrentefficiencyoverthewiderrangeoftheload.•TinySOT23-5PackageTheMT3410isofferedinalowprofile(1mm)5-pin,thinSOTpackage,andisavailableinanadjustableAPPLICATIONSversion.•CellularandSmartPhones•WirelessandDSLModems•PDAs•Digital

6、StillandVideoCameras•MP3PlayersTYPICALAPPLICATIONFigure1.TypicalApplicationCircuit1MT3410ABSOLUTEMAXIMUMRATINGS(Note1)InputSupplyVoltage……-0.3Vto6.5VOperatingTemperatureRange…-40°Cto+85°CRUN,FBVoltages……...-0.3Vto6.5VJunctionTemperature(Note2)……………..125

7、°CSWVoltage…………-0.3Vto(Vin+0.3V)StorageTemperatureRange..…-65°Cto150°CPeakSWSinkandSourceCurrent...2.5ALeadTemperature(Soldering,10s)….…..+300°CPACKAGE/ORDERINFORMATIONRUN15FBGND2SW34VINSOT23-5(MT3410)SWICHINGTemperatureOUTPUTOUTPUTPartNumberFREQUENCYRa

8、ngeVOLTAGE(V)CURRENT(A)MT34101.5MHz-40°Cto+85°CADJ1.5PINDESCRIPTIONPINNAMEFUNCTIONChipEnablePin.DriveRUNabove1.5Vtoturnonthepart.DriveRUNbelow1RUN0.3Vtoturnitoff.DonotleaveRUNfloating.2GNDGroundPinPowerSwitchOutput.Itistheswitchn