Texas Instruments LP2966 Bedienungsanleitung

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LP2966

www.ti.com

SNVS028E–APRIL2000–REVISEDAPRIL2013

Dual150mAUltraLow-DropoutRegulator

CheckforSamples:LP2966

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FEATURES

KEYSPECIFICATIONS

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•UltraLowDrop-OutVoltage

•DropoutVoltage:VariesLinearlywithLoad

Current.Typically0.9mVat1mALoadCurrent

•LowGroundPinCurrent

and135mVat150mALoadCurrent

•<1µAQuiescentCurrentinShutdownMode

•GroundPinCurrent:Typically300µAat1mA

•IndependentShutdownofEachLDORegulator

LoadCurrentand340µAat100mALoad

•OutputVoltageAccuracy±1%

Current(withOneShutdownPinPulledLow)

•Ensured150mAOutputCurrentatEach

•ShutdownMode:Lessthan1µAQuiescent

Output

CurrentwhenBothShutdownPinsarePulled

•LowOutputNoise

Low

•ErrorFlagsIndicateStatusofEachOutput

•ErrorFlag:OpenDrainOutput,GoesLow

•AvailableinVSSOP-8SurfaceMountPackagewhentheCorrespondingOutputDrops10%

BelowNominal

•LowOutputCapacitorRequirements(1µF)

•PrecisionOutputVoltage:MultipleOutput

•OperateswithLowESRCeramicCapacitorsin

VoltageOptionsAvailableRangingfrom1.8V

MostApplications

to5.0VwithanEnsuredAccuracyof±1%at

•OverTemperature/OverCurrentProtection

RoomTemperature

•-40°Cto+125°CJunctionTemperatureRange

DESCRIPTION

APPLICATIONS

TheLP2966dualultralow-dropout(LDO)regulator

•CellularandWirelessApplications

operatesfroma+2.70Vto+7.0Vinputsupply.Each

outputdelivers150mAoverfulltemperaturerange.

•Palmtop/LaptopComputer

TheICoperateswithextremelylowdrop-outvoltage

•GPSSystems

andquiescentcurrent,whichmakesitverysuitable

•FlatPanelDisplays

forbatterypoweredandportableapplications.Each

LDOintheLP2966hasindependentshutdown

•PostRegulators

capability.TheLP2966provideslownoise

•USBApplications

performancewithlowgroundpincurrentinan

•HandHeldEquipmentandMultimeters

extremelysmallVSSOP-8package(refertopackage

dimensionsandCONNECTIONDIAGRAMformore

•WirelessDataTerminals

informationonVSSOP-8package).Awiderangeof

•OtherBatteryPoweredApplications

presetvoltageoptionsareavailableforeachoutput.

Inaddition,manymoreareavailableuponrequest

withminimumorders.Inall,256voltagecombinations

arepossible.

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Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof

TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.

2Alltrademarksarethepropertyoftheirrespectiveowners.

PRODUCTIONDATAinformationiscurrentasofpublicationdate.

Copyright©2000–2013,TexasInstrumentsIncorporated

ProductsconformtospecificationsperthetermsoftheTexas

Instrumentsstandardwarranty.Productionprocessingdoesnot

necessarilyincludetestingofallparameters.

Produktspezifikationen