pst2001_20100910

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1、PST200190mΩAdjustableCurrentLimitedPowerSwitchesGeneralDescriptionPinConfigurationThePST2001arecurrentlimitedP-channelMOSFETpowerswitchdesignedforhigh-sideloadswitchingSOT23-6applications.Thisswitchoperateswithinputsranging(TopView)from2.5Vto5.5V,makingitidealforboth3.3Vand5Vsystems.Anin

2、tegratedcurrent-limitingcircuitprotectsOUT16INtheinputsupplyagainstlargecurrentswhichmaycausethesupplytofalloutofregulation.ThePST2001isalsoGND25SETprotectedfromthermaloverloadwhichlimitspowerdissipationandjunctiontemperatures.ItcanbeusedtoFLT34ENcontrolloadsthatrequireupto1.7A.Currentlimi

3、tthresholdisprogrammedwitharesistorfromSETtoground.Thequiescentsupplycurrentinactivemodeisonly25μA.Inshutdownmode,thesupplycurrentdecreasestolessthan1μA.ThePST2001isavailableinPb-freeSOT23-6packagesandisspecifiedoverthe-40°Cto+85°Cambienttemperaturerange.FeaturesInputVoltageRange:2.5Vto5

4、.5VProgrammableCurrentLimitReverseCurrentBlockingShort-CircuitResponse:350nsVeryLowQuiescentCurrent:25μA(Typ)1μAMaxShutdownSupplyCurrentUnder-VoltageLockoutThermalShutdown4kVESDRatingSOT23-6PackagesAmbientTemperatureRange:-40°Cto+85°CApplicationsLaptop/DesktopComputersandNetBoo

5、ks3GWirelessCardsSmartPhonesandPDAsLCDTVsandMonitorsSet-Top-BoxesMP3/MP4PrintersPortableGamePlayersPortableMediaPlayersandMIDsUSBKeyboardsUSBHardDiskDrivesUSBMemoryDrivesUSBHubs1PST200190mΩAdjustableCurrentLimitedPowerSwitchesOrderingInformationPARTNUMBERTEMPERATURERANGEMAXIMU

6、MCURRENTPACKAGETAPE&REELPST2001ETS-40Cto85C1.7ASOT23-6-TAvailableOptionsofthePowerSiliconTechPowerSwitchesPARTCurrentMAXIOUTCHENABLERds(ON)P2PCOMPATIBLEPACKAGESNUMBERLimit(DC)PST2001ETS1ActiveHigh90mΩADJ1.7AAAT4614HSOT23-6TypicalApplicationDiagramPST2001PowerSupplyINOUTLoad2.5Vto5.5VC1

7、1uF1uFC2FLTONSETENOFFGNDRSETFunctionBlockDiagramReverseBlockingINCSOUTLoaddischargeUVLOpathDriver&CurrentENLogicLimitSETThermalGNDFLTSense2PST200190mΩAdjustableCurrentLimitedPowerSwitchesPinDescriptionPinNo.PinNamePinFunctionPoweroutput.AdischargeFETisconnec