Texas Instruments LP2986 Handleiding

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LP2986

SNVS137I–MARCH1999–REVISEDSEPTEMBER2015

LP2986Micropower,200-mAUltra-Low-DropoutFixedorAdjustableVoltageRegulator

1Features3Description

TheLP2986isa200-mAhigh-precisionLDO

1

•WideSupplyVoltageRange(16VMaximum)

regulatorwithawideinputvoltagesupply.Thedevice

•Ultra-Low-DropoutVoltage

hastwooutputvoltagemodes:afixed-precision

•0.5%OutputVoltageAccuracy(AGrade)

outputmodeandanadjustableoutputvoltageviaan

externalresistivedivider.

•Ensured200-mAOutputCurrent

•<1-μAQuiescentCurrentwhenShutdown

UsinganoptimizedVerticallyIntegratedPNP(VIP)

process,theLP2986deliverssuperiorperformance:

•LowGROUNDPinCurrentatAllLoads

•DropoutVoltage:Typically180mVat200-mA

•HighPeakCurrentCapability(400mATypical)

load,and1mVat1-mAload.

•Overtemperature/OvercurrentProtection

•GROUNDPinCurrent:Typically1mAat200-mA

•−40°Cto+125°CJunctionTemperatureRange

load,and200μAat10-mAload.

•SleepMode:TheLP2986drawslessthan1μA

2Applications

quiescentcurrentwhenSHUTDOWNpinispulled

low.

•CellularPhones

•ERRORFlag:Thebuilt-inERRORflaggoeslow

•Palmtop/LaptopComputers

whentheoutputdropsapproximately5%below

•Camcorders,PersonalStereos,Cameras

nominal.

•PrecisionOutput:Thestandardproductversions

availablecanbepin-strapped(usingtheinternal

resistivedivider)toprovideoutputvoltagesof5V,

3.3V,or3Vwithensuredaccuracyof0.5%(A

grade)and1%(standardgrade)atroom

temperature.

DeviceInformation

(1)

PARTNUMBERPACKAGEBODYSIZE(NOM)

SOIC(8)4.90mm×3.91mm

LP2986VSSOP(8)3.00mm×3.00mm

WSON(8)4.00mm×4.00mm

(1)Forallavailablepackages,seetheorderableaddendumat

theendofthedatasheet.

SimplifiedSchematic

1

AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

Product specificaties