AMS1117系列芯片手册.pdf

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1、AdvancedAMS1117Monolithic1ALOWDROPOUTVOLTAGEREGULATORSystemsRoHScompliantFEATURESAPPLICATIONS•ThreeTerminalAdjustableorFixedVoltages*•HighEfficiencyLinearRegulators1.5V,1.8V,2.5V,2.85V,3.3Vand5.0V•PostRegulatorsforSwitchingSupplies•OutputCurrentof1A•5Vto3.3VL

2、inearRegulator•OperatesDownto1VDropout•BatteryChargers•LineRegulation:0.2%Max.•ActiveSCSITerminators•LoadRegulation:0.4%Max.•PowerManagementforNotebook•SOT-223,TO-252andSO-8packageavailable•BatteryPoweredInstrumentationGENERALDESCRIPTIONTheAMS1117seriesofadju

3、stableandfixedvoltageregulatorsaredesignedtoprovide1Aoutputcurrentandtooperatedownto1Vinput-to-outputdifferential.Thedropoutvoltageofthedeviceisguaranteedmaximum1.3Vatmaximumoutputcurrent,decreasingatlowerloadcurrents.On-chiptrimmingadjuststhereferencevoltage

4、to1%.Currentlimitisalsotrimmed,minimizingthestressunderoverloadconditionsonboththeregulatorandpowersourcecircuitry.TheAMS1117devicesarepincompatiblewithotherthree-terminalSCSIregulatorsandareofferedinthelowprofilesurfacemountSOT-223package,inthe8LSOICpackagea

5、ndintheTO-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-2.5

6、AMS1117-2.5AMS1117CS-2.5-40to125°C8LSOICTopViewAMS1117CD-2.85AMS1117-2.85AMS1117CS-2.85-40to125°CAMS1117CD-3.3AMS1117-3.3AMS1117CS-3.3-40to125°CGND/ADJ18N/CAMS1117CD-5.0AMS1117-5.0AMS1117CS-5.0-40to125°CV27VOUTOUTV36V*Foradditionalavailablefixedvoltagescontac

7、tfactory.OUTOUTV45N/CINPINCONNECTIONSSOT-223TopView3PINFIXED/ADJUSTABLETO-252FRONTVIEWVERSION3TABISOUTPUT21-Ground/Adjust11232-VOUT3-VINAdvancedMonolithicSystems,Inc.www.advanced-monolithic.comPhone(925)443-0722Fax(925)443-0723AMS1117ABSOLUTEMAXIMUMRATINGS(No

8、te1)PowerDissipationInternallylimitedSolderinginformationInputVoltage15VLeadTemperature(25sec)265°COperatingJunctionTemperatureThermalResistanceControlSection0°Cto125°CSO-8packageϕJA=160°