MAX604_资料_datasheet

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1、19-0269;Rev0;9/945V/3.3VorAdjustable,Low-Dropout,LowIQ,500mALinearRegulators_______________GeneralDescription____________________________FeaturesMAX603/MAX604TheMAX603/MAX604low-dropout,lowquiescentcur-♦500mAOutputCurrent,withFoldbackCurrentrent,linearregulatorss

2、upply5V,3.3V,oranadjustableLimitingoutputforcurrentsupto500mA.Theyareavailableina♦High-Power(1.8W)8-PinSOPackage1.8WSOpackage.Typicaldropoutsare320mVat5V♦DualMode™Operation:FixedorAdjustableand500mA,or240mVat3.3Vand200mA.QuiescentOutputfrom1.25Vto11Vcurrentsare15

3、µAtypand35µAmax.Shutdownturnsoffallcircuitryandputstheregulatorina2µAoffmode.♦LargeInputRange(2.7Vto11.5V)Auniqueprotectionschemelimitsreversecurrents♦Internal500mAP-ChannelPassTransistorwhentheinputvoltagefallsbelowtheoutput.Otherfea-♦15µATypicalQuiescentCurrent

4、turesincludefoldbackcurrentlimitingandthermaloverloadprotection.♦2µA(Max)ShutdownModeTheoutputispresetat3.3VfortheMAX604and5Vfor♦ThermalOverloadProtectiontheMAX603.Inaddition,bothdevicesemployDual♦Reverse-CurrentProtectionMode™operation,allowinguser-adjustableout

5、putsfrom1.25Vto11Vusingexternalresistors.Theinputvoltagesupplyrangeis2.7Vto11.5V.______________OrderingInformationTheMAX603/MAX604featurea500mAP-channelMOSFETpasstransistor.ThistransistorallowsthePARTTEMP.RANGEPIN-PACKAGEdevicestodrawlessthan35µAovertemperature,i

6、nde-MAX603CPA0°Cto+70°C8PlasticDIPpendentoftheoutputcurrent.ThesupplycurrentMAX603CSA0°Cto+70°C8SOremainslowbecausetheP-channelMOSFETpasstran-MAX603C/D0°Cto+70°CDice*sistordrawsnobasecurrents(unlikethePNPtransis-MAX603EPA-40°Cto+85°C8PlasticDIPtorsofconventionalb

7、ipolarlinearregulators).Also,whentheinput-to-outputvoltagedifferentialbecomesMAX603ESA-40°Cto+85°C8SOsmall,theinternalP-channelMOSFETdoesnotsufferMAX603MJA-55°Cto+125°C8CERDIP**fromexcessivebasecurrentlossesthatoccurwithsat-MAX604CPA0°Cto+70°C8PlasticDIPuratedPNP

8、transistors.MAX604CSA0°Cto+70°C8SO________________________ApplicationsMAX604C/D0°Cto+70°CDice*5Vand3.3VRegulatorsMAX604EPA-40°Cto+85°C8PlasticDIP1.25Vto11VAdju