Texas Instruments LP3965 Handleiding
Pagina's 35 Niet gecategoriseerd
Bekijk de handleiding van Texas Instruments LP3965 gratis online of download de PDF. Deze handleiding is 3 keer bekeken. Vraag over dit model? Stel een vraag
LP3962,LP3965
www.ti.com
SNVS066H–MAY2000–REVISEDAPRIL2013
LP3962/LP39651.5AFastUltraLowDropoutLinearRegulators
CheckforSamples:LP3962,LP3965
1
FEATURES
DESCRIPTION
TheLP3962/LP3965seriesoffastultralow-dropout
2
•UltraLowDropoutVoltage
linearregulatorsoperatefroma+2.5Vto+7.0Vinput
•LowGroundPinCurrent
supply.Widerangeofpresetoutputvoltageoptions
•LoadRegulationof0.04%
areavailable.Theseultralowdropoutlinear
regulatorsrespondveryfasttostepchangesinload
•15µAQuiescentCurrentinShutdownMode
whichmakesthemsuitableforlowvoltage
•SpecifiedOutputCurrentof1.5ADC
microprocessorapplications.TheLP3962/LP3965are
•AvailableinSOT-223,SFM/TO-263andTO-220
developedonaCMOSprocesswhichallowslow
Packages
quiescentcurrentoperationindependentofoutput
loadcurrent.ThisCMOSprocessalsoallowsthe
•OutputVoltageAccuracy±1.5%
LP3962/LP3965tooperateunderextremelylow
•ErrorFlagIndicatesOutputStatus(LP3962)
dropoutconditions.
•SenseOptionImprovesBetterLoad
DropoutVoltage:Ultralowdropoutvoltage;typically
Regulation(LP3965)
38mVat150mAloadcurrentand380mVat1.5Aload
•ExtremelyLowOutputCapacitor
current.
Requirements
GroundPinCurrent:Typically5mAat1.5Aload
•Overtemperature/OvercurrentProtection
current.
•−40°Cto+125°CJunctionTemperatureRange
ShutdownMode:Typically15µAquiescentcurrent
whentheshutdownpinispulledlow.
APPLICATIONS
ErrorFlag:Errorflaggoeslowwhentheoutput
•MicroprocessorPowerSupplies
voltagedrops10%belownominalvalue(forLP3962).
•GTL,GTL+,BTL,andSSTLBusTerminators
SENSE:Sensepinimprovesregulationatremote
•PowerSuppliesforDSPs
loads.(ForLP3965)
•SCSITerminator
PrecisionOutputVoltage:Multipleoutputvoltage
•PostRegulators
optionsareavailablerangingfrom1.2Vto5.0Vand
•HighEfficiencyLinearRegulators
adjustable(LP3965),withaspecifiedaccuracyof
±1.5%atroomtemperature,and±3.0%overall
•BatteryChargers
conditions(varyingline,load,andtemperature).
•OtherBatteryPoweredApplications
TypicalApplicationCircuits
*SDandERRORpinsmustbepulledhighthrougha10kΩpull-upresistor.ConnecttheERRORpintogroundifthis
functionisnotused.SeeApplicationHintssectionformoreinformation.
1
Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof
TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
2Alltrademarksarethepropertyoftheirrespectiveowners.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
Copyright©2000–2013,TexasInstrumentsIncorporated
ProductsconformtospecificationsperthetermsoftheTexas
Instrumentsstandardwarranty.Productionprocessingdoesnot
necessarilyincludetestingofallparameters.
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | LP3965 |
Heb je hulp nodig?
Als je hulp nodig hebt met Texas Instruments LP3965 stel dan hieronder een vraag en andere gebruikers zullen je antwoorden