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1、SGM2019LowPower,LowDropout,RF-LinearRegulatorsGENERALDESCRIPTIONFEATURESTheSGM2019serieslow-power,low-noise,low-dropout,óLowOutputNoiseCMOSlinearvoltageregulatorsoperatefroma2.5VtoóLowDropoutVoltage5.5Vinputvoltage.TheyaretheperfectchoiceforlowóThermal-OverloadP
2、rotectionvoltage,lowpowerapplications.AlowgroundcurrentóOutputCurrentLimitmakesthispartattractiveforbatteryoperatedpoweróHighPSRR(68dBat1kHz)systems.TheSGM2019seriesalsoofferultralowó10nALogic-ControlledShutdowndropoutvoltagetoprolongbatterylifeinportableóAvaila
3、bleinMultipleOutputVoltageVersionselectronics.Systemsrequiringaquietvoltagesource,óFixedOutputsof1.2V,1.3V,1.5V,1.8V,2.1V,2.5V,suchasRFapplications,willbenefitfromtheSGM20192.7V,2.8V,2.85V,2.9V,3.0V,3.1V,3.2V,3.3V,series’ultralowoutputnoise(30µVRMS)andhighPSRR.3
4、.6V,4.2V,5.0VAnexternalnoisebypasscapacitorconnectedtotheóAdjustableOutputfrom1.2Vto5.0Vdevice’sBPpincanfurtherreducethenoiselevel.ó-40℃to+85℃OperatingTemperatureRangeóGreenSC70-5andSOT23-5PackagesTheoutputvoltageispresettovoltagesintherangeof1.2Vto5.0V.Otherfea
5、turesincludea10nAlogic-controlledshutdownmode,foldbackcurrentlimitandPRODUCTNAMESTRUCTUREthermalshut-downprotection.SGM2019-XXXXXXG/TRTheSGM2019hasGreenSC70-5andSOT23-5TapeandReelpackages.ItoperatesoveranambienttemperaturerangeGreenProductof-40°Cto+85°C.PackageT
6、ypeC5SC70-5/SOT-353N5SOT23-5APPLICATIONSOperatingTemperatureRangeCellularTelephonesY-40℃to+85℃CordlessTelephonesOutputVoltagePHSTelephones1.21.2V1.31.3V1.51.5VPCMCIACards......3.63.6VModems4.24.2V5.05.0VMP3PlayerADJadjustableHand-HeldInstrumentsPalmtopComputersE
7、lectronicPlannersPortable/Battery-PoweredEquipmentLowPower,LowDropout,SGM2019RF-LinearRegulatorsPINCONFIGURATIONS(TOPVIEW)ABSOLUTEMAXIMUMRATINGSINtoGND................................................................-0.3Vto6VYJxxOutputShort-CircuitDuration.......
8、..................................InfiniteIN15OUTENtoGND..............................................................-0.3VtoVINOUT,BP/FBtoGND........................
