AMS1084CM 电脑主板稳压芯片

AdvancedAMS1084Monolithic5ALOWDROPOUTVOLTAGEREGULATORSystemsRoHScompliantFEATURESAPPLICATIONS•ThreeTerminalAdjustableorFixed•HighEfficiencyLinearRegulators1.5V,2.5V,2.85V,3.0V,3.3V,3.5Vand5.0V•PostRegulatorsforSwitchingSupplies•OutputCurrentof5A•MicroprocessorSupply•OperatesDownto1VDropout•BatteryChargers•LineRegulation:0.015%•ConstantCurrentRegulators•LoadRegulation:0.1%•Notebook/PersonalComputerSupplies•TO-220,TO-263andTO-252packagesavailable•PortableInstrumentationGENERALDESCRIPTIONTheAMS1084seriesofadjustableandfixedvoltageregulatorsaredesignedtoprovide5Aoutputcurrentandtooperatedownto1Vinput-to-outputdifferential.Thedropoutvoltageofthedeviceisguaranteedmaximum1.5Vatmaximumoutputcurrent,decreasingatlowerloadcurrents.On-chiptrimmingadjuststhereferencevoltageto1%.Currentlimitisalsotrimmed,minimizingthestressunderoverloadconditionsonboththeregulatorandpowersourcecircuitry.TheAMS1084devicesarepincompatiblewitholderthree-terminalregulatorsandareofferedin3leadTO-220package,3and2leadTO-263(PlasticDD)andTO-252(DPAK)package.ORDERINGINFORMATION:PACKAGETYPEOPERATINGJUNCTION3LEADTO-2202&3LEADTO-263TO-252TEMPERATURERANGEAMS1084CTAMS1084CMAMS1084CD0to125°CAMS1084CT-1.5AMS1084CM-1.5AMS1084CD-1.50to125°CAMS1084CT-2.5AMS1084CM-2.5AMS1084CD-2.50to125°CAMS1084CT-2.85AMS1084CM-2.85AMS1084CD-2.850to125°CAMS1084CT-3.0AMS1084CM-3.0AMS1084CD-3.00to125°CAMS1084CT-3.3AMS1084CM-3.3AMS1084CD-3.30to125°CAMS1084CT-3.5AMS1084CM-3.5AMS1084CD-3.50to125°CAMS1084CT-5.0AMS1084CM-5.0AMS1084CD-5.00to125°C123TABISOUTPUTTO-220FRONTVIEW123TABISOUTPUT3LTO-263FRONTVIEWTABISOUTPUTTO-252FRONTVIEW123123TABISOUTPUT2LTO-263FRONTVIEWPINCONNECTIONSFIXEDVERSIONADJUSTABLEVERSION1-Ground2-VOUT3-VIN1-Adjust2-VOUT3-VINAdvancedMonolithicSystems,Inc.[phone]Fax[phone]AdvancedMonolithicSystems,Inc.[phone]Fax[phone]AMS1084ABSOLUTEMAXIMUMRATINGS(Note1)PowerDissipationInternallylimitedSolderinginformationInputVoltage15VLeadTemperature(25sec)265°COperatingJunctionTemperatureThermalResistanceControlSection0°Cto125°CTO-220packageϕJA=50°C/WPowerTransistor0°Cto150°CTO-263packageϕJA=30°C/W*Storagetemperature-65°Cto+150°CTO-252packageϕJA=100°C/W*Withpackagesolderingto0.5in2copperareaoverbacksidegroundplaneorinternalpowerplaneϕJAcanvaryfrom20°C/Wto40°C/Wdependingonmountingtechnique.ELECTRICALCHARACTERISTICSElectricalCharacteristicsatIOUT=0mA,andTJ=+25°Cunlessotherwisespecified.ParameterDeviceConditionsMinTypMaxUnitsReferenceVoltage(Note2)AMS1084IOUT=10mA10mA≤IOUT≤5A,1.5V≤(VIN-VOUT)≤12V1.2381.2251.2501.2501.2621.270VVOutputVoltage(Note2)AMS1084-1.50≤IOUT≤5A,3V≤VIN≤12V1.4851.4701.5001.5001.5151.530VVAMS1084-2.50≤IOUT≤5A,4V≤VIN≤12V2.4752.4502.5002.5002.5252.550VVAMS1084-2.850≤IOUT≤5A,4.35V≤VIN≤12V2.822.792.8502.8502.882.91VVAMS1084-3.00≤IOUT≤5A,4.5V≤VIN≤12V2.9702.9403.0003.0003.3003.360VVAMS1084-3.30≤IOUT≤5A,4.75V≤VIN≤12V3.2673.2353.3003.3003.3333.365VVAMS1084-3.50≤IOUT≤5A,5V≤VIN≤12V3.4653.4303.5003.5003.5353.570VVAMS1084-5.00≤IOUT≤5A,6.5V≤VIN≤12V4.9504.9005.0005.0005.0505.100VVLineRegulationAMS1084/-1.5/-2.5/-2.85/-3.0/-3.3/-3.5/-5.0ILOAD=10mA,1.5V≤(VIN-VOUT)≤12V0.30.6610mVmVLoadRegulation(Notes2,3)AMS1084(VIN-VOUT)=3V,10mA≤IOUT≤5A0.10.20.30.4%%AMS1084-1.5VIN=5V,0≤IOUT≤5A361220mVmVAMS1084-2.5VIN=5V,0≤IOUT≤5A361220mVmVAMS1084-2.85VIN=5V,0≤IOUT≤5A361220mVmVAMS1084-3.0VIN=5V,0≤IOUT≤5A361220mVmVAMS1084-3.3VIN=5V,0≤IOUT≤5A371525mVmVAMS1084-3.5VIN=5.25V,0≤IOUT≤5A361525mVmVAMS1084-5.0VIN=8V,0≤IOUT≤5A5102035mVmVDropoutVoltage(VIN-VOUT)AMS1084/-1.5/-2.5/-2.85/-3.0/-3.3/-3.5/-5.0∆VOUT,∆VREF=1%,IOUT=5A(Note4)1.31.5VAdvancedMonolithicSystems,Inc.[phone]Fax[phone]AMS1084ELECTRICALCHARACTERISTICSElectricalCharacteristicsatIOUT=0mA,andTJ=+25°Cunlessotherwisespecified.ParameterDeviceConditionsMinTypMaxUnitsCurrentLimitAMS1084/-1.5/-2.5/-2.85/-3.0/-3.3/-3.5/-5.0(VIN-VOUT)=5V5.006.007.00AMinimumLoadCurrentAMS1084(VIN-VOUT)=12V(Note5)510mAQuiescentCurrentAMS1084/-1.5/-2.5/-2.85/-3.0/-3.3/-3.5/-5.0VIN≤12V510mARippleRejectionAMS1084f=120Hz,COUT=25µFTantalum,IOUT=5A,(VIN-VOUT)=3V,CADJ=25µF6075dBAMS1084-1.5f=120Hz,COUT=25µFTantalum,IOUT=5A,VIN=4.5V6072dBAMS1084-2.5f=120Hz,COUT=25µFTantalum,IOUT=5A,VIN=5.5V6072dBAMS1084-2.85f=120Hz,COUT=25µFTantalum,IOUT=5A,VIN=6V6072dBAMS1084-3.0f=120Hz,COUT=25µFTantalum,IOUT=5AVIN=6V6072dBAMS1084-3.3f=120Hz,COUT=25µFTantalum,IOUT=5AVIN=6.3V6072dBAMS1084-3.5f=120Hz,COUT=25µFTantalum,IOUT=5AVIN=6.5V6072dBAMS1084-5.0f=120Hz,COUT=25µFTantalum,IOUT=5AVIN=8V6068dBThermalRegulationAMS1084TA=25°C,30mspulse0.0080.04%WAdjustPinCurrentAMS108410mA≤IOUT≤5A,1.5V≤(VIN-VOUT)≤12V55120µAµAAdjustPinCurrentChangeAMS108410mA≤IOUT≤5A,1.5V≤(VIN-VOUT)≤12V0.25µATemperatureStability0.5%LongTermStabilityTA=125°C,1000Hrs0.31%RMSOutputNoise(%ofVOUT)TA=25°C,10Hz≤f≤10kHz0.003%ThermalResistanceJunction-to-CaseMPackage:ControlCircuitry/PowerTransistorTPackage:ControlCircuitry/PowerTransistor1.5/4.01.5/4.0°C/W°C/WParametersidentifiedwithboldfacetypeapplyoverthefull