TheL1085isapositiveandlowdropoutthree-terminalvoltageregulatorwith3Aout-putcurrentcapability.Thisdeviceisdesign-edforuseinlowvoltageapplicationsthatofferslowerdropoutvoltageandfastertran-sientresponse.Thisdeviceisfullyprotectedovercurrentfaults,overtemperatureoperation,reversedinputpolarity,reversedleadinsert-ion,transientvoltagee…etc.On-Chipstrimmingthereferencevoltageto1%andfeaturesthelowdropoutofmaxi-mum1.45volts.TheL1085SeriesregulatorsareavailableinthepopularindustrystandardTO-220TO-263andTO-252packages.

Veryeasytouse,itrequiresonlytwoexternalresistorstosettheoutputvoltageLowdropout1.3VtypicalatuptoLowgroundFasttransientCurrent&thermalLineregulation:0.5%Loadregulation:0.5%TO-220,TO-263andTO-252HighcurrentmicroprocessorLowvoltagelogicPoweringVGA&soundPortableConstantcurrentPostregulatorforswitchingpower-BasicAdjustableRegulatorCircuitABSOLUTEUMumSupply Operating 0to125Power Storage

-40to150 ThermalJunctiontoCase, ThermalJunctiontoAmbient,JA

5607050

LeadTemperature

260ELECTRICALCHARACTERISTICS(Unlessotherwisespecified,TA=25ReferenceVIN=5V,IOUT=ΔVREF=1%,IOUT=Line(VOUT+1.5V)VIN7V,IOUT=Load(VIN-VOUT)=3V,10mAIOUT1.5V(VIN-VOUT)AdjustPCurrentVIN-VOUT=4.0ARMSOutputoff=120Hz,CADJ=22FforADJpin,VIN=5V,IOUT=3A60dBDEVICESELECTIONPPin123Note:TABisOutputAHBICJDKELFMG9NAHBICJDKELFMG9NAHBICJDKELFMGNAHBICJDK1ELFMG6N11.45L1085TO-220、TO-263TO-2523A1.3V（典型值）0.5%0.5%TO-220、TO-263TO-252VGA供電便攜式儀器恒流穩(wěn)壓器開關(guān)電源的后置穩(wěn)壓器典型應(yīng)用Cin基本可調(diào)穩(wěn)壓電路-絕對最大額定值工作結(jié)最大電源電壓7V溫度范圍0至125°C功 限制存儲溫度范-40150°C，θJC5C/W（焊接，10）260C熱阻，θJATO-26360C/WTO-25270°C/WTO-22050C/W（除非另有說明，TA25°C。VREFVIN5V，IOUT10mA1.25V1.27VMaxVDΔVREF1%，IOUT3A1.3V1.45VREG(LINE(VOUT1.5V)≤VIN≤7V，IOUT=10mA0.5%REG(LOAD)(VINVOUT)3V,10mAIOUT3A0.5%IO1.5V(VINVOUT)5.75V10mAIADJ55μA100μAICLVINVOUT2V5.0A4.0A（最小值RMSVNVOUT0.003%RAf120Hz，CADJ22μF（ADJ引腳5V，IOUT3A72dB60dB（最小值L1085DL1085SL1085S3L1085TTO-252TO-263（2）TO-引腳）TO-L1085DL1085SL1085S3L1085TL1085TABTO-220（3）mmmmA9.7810.1610.54H2.42.542.612