Texas Instruments LP2952-N Bruksanvisning
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LP2952-N
,
LP2952A
,
LP2953
,
LP2953A
SNVS095F–MAY2004–REVISEDMARCH2015
LP295xAdjustableMicropowerLow-DropoutVoltageRegulators
1Features3Description
TheLP2952andLP2953aremicropowervoltage
1
•2.3-Vto30-VInputVoltageRange
regulatorswithverylowquiescentcurrent(130μA
•OutputVoltageAdjustsfrom1.23Vto29V
typicalat1-mAload)andverylowdropoutvoltage
•250-mAOutputCurrent
(typically60mVatlightloadand470mVat250-mA
loadcurrent).Theyareideallysuitedforbattery-
•ExtremelyLowQuiescentCurrent
poweredsystems.Furthermore,thequiescentcurrent
•LowDropoutVoltage
increasesonlyslightlyatdropout,whichprolongs
•ExtremelyTightLineandLoadRegulation
batterylife.
•VeryLowTemperatureCoefficient
TheLP2952andLP2953retainallthedesirable
•CurrentandThermalLimiting
characteristicsoftheLP2951,butofferincreased
outputcurrent,additionalfeatures,andanimproved
•ReverseBattery-InputProtection
shutdownfunction.
•50-mA(Typical)AutomaticOutputDischarge
Theautomaticoutputdischargepullstheoutputdown
•LP2953VersionsOnly
quicklywhentheshutdownisactivated.
–AuxiliaryComparatorIncludedWithCMOS-
andTTL-CompatibleOutputLevels.CanBe
Theerrorflaggoeslowiftheoutputvoltagedropsout
ofregulation.
UsedforFaultDetection,Low-InputLine
Detection,andsoon.
Reversebattery-inputprotectionisprovided.
Theinternalvoltagereferenceismadeavailablefor
2Applications
externaluse,providingalowtemperaturecoefficient
•High-EfficiencyLinearRegulator
(20ppm/°C)referencewithverygoodline(0.03%)
andload(0.04%)regulation.
•RegulatorWithUndervoltageShutdown
•Low-DropoutBattery-PoweredRegulator
DeviceInformation
(1)
•Snap-ON/Snap-OFFRegulator
PARTNUMBERPACKAGEBODYSIZE(NOM)
LP2952xSOIC(16)9.90mm×3.91mm
SOIC(16)9.90mm×3.91mm
LP2953x
PDIP(16)21.755mm×6.35mm
(1)Forallavailablepackages,seetheorderableaddendumat
theendofthedatasheet.
TypicalApplicationSchematic
1
AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,
intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.
Produktspecifikationer
| Varumärke: | Texas Instruments |
| Kategori: | ej kategoriserat |
| Modell: | LP2952-N |
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