Texas Instruments LP3966 Handleiding
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LP3963,LP3966
www.ti.com
SNVS067H–APRIL2000–REVISEDAPRIL2013
LP3963/LP39663AFastUltraLowDropoutLinearRegulators
CheckforSamples:LP3963,LP3966
1
FEATURES
DESCRIPTION
TheLP3963/LP3966seriesoffastultralow-dropout
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•UltraLowDropoutVoltage
linearregulatorsoperatefroma+2.5Vto+7.0Vinput
•LowGroundPinCurrent
supply.Widerangeofpresetoutputvoltageoptions
•LoadRegulationof0.06%
areavailable.Theseultralowdropoutlinear
regulatorsrespondveryquicklytostepchangesin
•15µAQuiescentCurrentinShutdownMode
loadwhichmakesthemsuitableforlowvoltage
•SpecifiedOutputCurrentof3ADC
microprocessorapplications.TheLP3963/LP3966are
•AvailableinDDPAK/TO-263andTO-220
developedonaCMOSprocesswhichallowslow
Packages
quiescentcurrentoperationindependentofoutput
loadcurrent.ThisCMOSprocessalsoallowsthe
•OutputVoltageAccuracy±1.5%
LP3963/LP3966tooperateunderextremelylow
•ErrorFlagIndicatesOutputStatus(LP3963)
dropoutconditions.
•SenseOptionImprovesLoadRegulation
DropoutVoltage:Ultralowdropoutvoltage;typically
(LP3966)
80mVat300mAloadcurrentand800mVat3Aload
•MinimumOutputCapacitorRequirements
current.
•Overtemperature/OvercurrentProtection
GroundPinCurrent:Typically6mAat3Aload
•−40°Cto+125°CJunctionTemperatureRange
current.
ShutdownMode:Typically15µAquiescentcurrent
APPLICATIONS
whentheshutdownpinispulledlow.
•MicroprocessorPowerSupplies
ErrorFlag:Errorflaggoeslowwhentheoutput
•GTL,GTL+,BTL,andSSTLBusTerminators
voltagedrops10%belownominalvalue(forLP3963).
•PowerSuppliesforDSPs
SENSE:Sensepinimprovesregulationatremote
•SCSITerminator
loads.(ForLP3966)
•PostRegulators
PrecisionOutputVoltage:Multipleoutputvoltage
•HighEfficiencyLinearRegulators
optionsareavailablerangingfrom1.2Vto5.0Vand
adjustable(LP3966),withaspecifiedaccuracyof
•BatteryChargers
±1.5%atroomtemperature,and±3.0%overall
•OtherBatteryPoweredApplications
conditions(varyingline,load,andtemperature).
TypicalApplicationCircuits
*SDandERRORpinsmustbepulledhighthrougha10kΩpull-upresistor.ConnecttheERRORpintogroundifthis
functionisnotused.SeeApplicationHintsformoreinformation.
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Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof
TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
2Alltrademarksarethepropertyoftheirrespectiveowners.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
Copyright©2000–2013,TexasInstrumentsIncorporated
ProductsconformtospecificationsperthetermsoftheTexas
Instrumentsstandardwarranty.Productionprocessingdoesnot
necessarilyincludetestingofallparameters.
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | LP3966 |
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