AMS1117系列芯片手册

AdvancedAMS1117Monolithic1ALOWDROPOUTVOLTAGEREGULATORSystemsRoHScompliantFEATURESAPPLICATIONS•ThreeTerminalAdjustableorFixedVoltages*•HighEfficiencyLinearRegulators1.5V,1.8V,2.5V,2.85V,3.3Vand5.0V•PostRegulatorsforSwitchingSupplies•OutputCurrentof1A•5Vto3.3VLinearRegulator•OperatesDownto1VDropout•BatteryChargers•LineRegulation:0.2%Max.•ActiveSCSITerminators•LoadRegulation:0.4%Max.•PowerManagementforNotebook•SOT-223,TO-252andSO-8packageavailable•BatteryPoweredInstrumentationGENERALDESCRIPTIONTheAMS1117seriesofadjustableandfixedvoltageregulatorsaredesignedtoprovide1Aoutputcurrentandtooperatedownto1Vinput-to-outputdifferential.Thedropoutvoltageofthedeviceisguaranteedmaximum1.3Vatmaximumoutputcurrent,decreasingatlowerloadcurrents.On-chiptrimmingadjuststhereferencevoltageto1%.Currentlimitisalsotrimmed,minimizingthestressunderoverloadconditionsonboththeregulatorandpowersourcecircuitry.TheAMS1117devicesarepincompatiblewithotherthree-terminalSCSIregulatorsandareofferedinthelowprofilesurfacemountSOT-223package,inthe8LSOICpackageandintheTO-252(DPAK)plasticpackage.ORDERINGINFORMATION:PACKAGETYPEOPERATINGJUNCTIONTO-252SOT-2238LSOICTEMPERATURERANGEAMS1117CDAMS1117AMS1117CS-40to125°CAMS1117CD-1.5AMS1117-1.5AMS1117CS-1.5-40to125°CAMS1117CD-1.8AMS1117-1.8AMS1117CS-1.8-40to125°CAMS1117CD-2.5AMS1117-2.5AMS1117CS-2.5-40to125°CAMS1117CD-2.85AMS1117-2.85AMS1117CS-2.85-40to125°CAMS1117CD-3.3AMS1117-3.3AMS1117CS-3.3-40to125°CAMS1117CD-5.0AMS1117-5.0AMS1117CS-5.0-40to125°C8LSOICTopView12843756VOUTN/CVOUTGND/ADJVOUTVOUTN/CVINTABISOUTPUTTO-252FRONTVIEW123*Foradditionalavailablefixedvoltagescontactfactory.PINCONNECTIONSSOT-223TopView1233PINFIXED/ADJUSTABLEVERSION1-Ground/Adjust2-VOUT3-VINAdvancedMonolithicSystems,Inc.[phone]Fax[phone]AdvancedMonolithicSystems,Inc.[phone]Fax[phone]AMS1117ABSOLUTEMAXIMUMRATINGS(Note1)PowerDissipationInternallylimitedSolderinginformationInputVoltage15VLeadTemperature(25sec)265°COperatingJunctionTemperatureThermalResistanceControlSection0°Cto125°CSO-8packageϕJA=160°C/WPowerTransistor0°Cto150°CTO-252packageϕJA=80°C/WStoragetemperature-65°Cto+150°CSOT-223packageϕJA=90°C/W**WithpackagesolderingtocopperareaoverbacksidegroundplaneorinternalpowerplaneϕJAcanvaryfrom46°C/Wto90°C/Wdependingonmountingtechniqueandthesizeofthecopperarea.ELECTRICALCHARACTERISTICSElectricalCharacteristicsatIOUT=0mA,andTJ=+25°Cunlessotherwisespecified.ParameterDeviceConditionsMinTypMaxUnitsReferenceVoltage(Note2)AMS1117IOUT=10mA10mA≤IOUT≤1A,1.5V≤(VIN-VOUT)≤12V1.2381.2251.2501.2501.2621.270VVOutputVoltage(Note2)AMS1117-1.50≤IOUT≤1A,3.0V≤VIN≤12V1.4851.4761.5001.5001.5151.524VVAMS1117-1.80≤IOUT≤1A,3.3V≤VIN≤12V1.7821.7731.8001.8001.8181.827VVAMS1117-2.50≤IOUT≤1A,4.0V≤VIN≤12V2.4752.4602.5002.5002.5252.560VVAMS1117-2.850≤IOUT≤1A,4.35V≤VIN≤12V2.822.792.8502.8502.882.91VVAMS1117-3.30≤IOUT≤1A,4.75V≤VIN≤12V3.2673.2353.3003.3003.3333.365VVAMS1117-5.00≤IOUT≤1A,6.5V≤VIN≤12V4.9504.9005.0005.0005.0505.100VVLineRegulationAMS1117ILOAD=10mA,1.5V≤(VIN-VOUT)≤12V0.0150.0350.20.2%%AMS1117-1.53.0V≤VIN≤12V0.30.656mVmVAMS1117-1.83.3V≤VIN≤12V0.30.656mVmVAMS1117-2.54.0V≤VIN≤12V0.30.666mVmVAMS1117-2.854.35V≤VIN≤12V0.30.666mVmVAMS1117-3.34.75V≤VIN≤12V0.51.01010mVmVAMS1117-5.06.5V≤VIN≤12V0.51.01010mVmVLoadRegulation(Notes2,3)AMS1117(VIN-VOUT)=3V,10mA≤IOUT≤1A0.10.20.30.4%%AMS1117-1.5VIN=5V,0≤IOUT≤1A361020mVmVAMS1117-1.8VIN=5V,0≤IOUT≤1A361020mVmVAMS1117-2.5VIN=5V,0≤IOUT≤1A361220mVmVAdvancedMonolithicSystems,Inc.[phone]Fax[phone]AMS1117ELECTRICALCHARACTERISTICSElectricalCharacteristicsatIOUT=0mA,andTJ=+25°Cunlessotherwisespecified.ParameterDeviceConditionsMinTypMaxUnitsLoadRegulation(Notes2,3)AMS1117-2.85VIN=5V,0≤IOUT≤1A361220mVmVAMS1117-3.3VIN=5V,0≤IOUT≤1A371525mVmVAMS1117-5.0VIN=8V,0≤IOUT≤1A5102035mVmVDropoutVoltage(VIN-VOUT)AMS1117-1.5/-1.8/-2.5/-2.85/-3.3/-5.0∆VOUT,∆VREF=1%,IOUT=1A(Note4)1.11.3VCurrentLimitAMS1117-1.5/-1.8/-2.5/-2.85/-3.3/-5.0(VIN-VOUT)=5V9001,1001,500mAMinimumLoadCurrentAMS1117(VIN-VOUT)=12V(Note5)510mAQuiescentCurrentAMS1117-1.5/-1.8/-2.5/-2.85/-3.3/-5.0VIN≤12V510mARippleRejectionAMS1117f=120Hz,COUT=22µFTantalum,IOUT=1A,(VIN-VOUT)=3V,CADJ=10µF6075dBAMS1117-1.5/-1.8/-2.5/-2.85f=120Hz,COUT=22µFTantalum,IOUT=1A,VIN=6V6072dBAMS1117-3.3f=120Hz,COUT=22µFTantalum,IOUT=1AVIN=6.3V6072dBAMS1117-5.0f=120Hz,COUT=22µFTantalum,IOUT=1AVIN=8V6068dBThermalRegulationAMS1117TA=25°C,30mspulse0.0080.04%WAdjustPinCurrentAMS111710mA≤IOUT≤1A,1.5V≤(VIN-VOUT)≤12V55120µAµAAdjustPinCurrentChangeAMS111710mA≤IOUT≤1A,1.5V≤(VIN-VOUT)≤12V0.25µATemperatureStability0.5%LongTermStabilityTA=125°C,1000Hrs0.31%RMSOutputNoise(%ofVOUT)TA=25°C,10Hz≤f≤10kHz0.003%ThermalResistanceJunction-to-Case15°C/WParametersidentifiedwithboldfacetypeapplyoverthefulloperatingtemperaturerange.Note1:AbsoluteMaximumRatingsindicatelimitsbeyondwhichdamagetothedevicemayoccur.Forguaranteedspecificationsandtestconditions,seetheElectricalCharacteristics.Theguaranteedspecifications