Texas Instruments LP2953QML-SP Bruksanvisning
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LP2953QML,LP2953QML-SP
www.ti.com
SNVS395C–NOVEMBER2010–REVISEDAPRIL2013
LP2953QMLAdjustableMicropowerLow-DropoutVoltageRegulators
CheckforSamples:LP2953QML,LP2953QML-SP
1
FEATURES
DESCRIPTION
TheLP2953Aisamicropowervoltageregulatorwith
2
•OutputVoltageAdjustsfrom1.23Vto29V
verylowquiescentcurrent(130μAtypicalat1mA
•Ensured250mAOutputCurrent
load)andverylowdropoutvoltage(typ.60mVat
•ExtremelyLowQuiescentCurrent
lightloadand470mVat250mAloadcurrent).Itis
ideallysuitedforbattery-poweredsystems.
•LowDropoutVoltage
Furthermore,thequiescentcurrentincreasesonly
•ExtremelyTightLineandLoadRegulation
slightlyatdropout,whichprolongsbatterylife.
•VeryLowTemperatureCoefficient
TheLP2953Aretainsallthedesirablecharacteristics
•CurrentandThermalLimiting
oftheLP2951,butoffersincreasedoutputcurrent,
•ReverseBatteryProtection
additionalfeatures,andanimprovedshutdown
function.
•50mA(Typical)OutputPulldownCrowbar
•AuxiliaryComparatorIncludedwithCMOS/TTL
Theinternalcrowbarpullstheoutputdownquickly
whentheshutdownisactivated.
CompatibleOutputLevels.Canbeusedfor
FaultDetection,LowInputLineDetection,etc.
Theerrorflaggoeslowiftheoutputvoltagedropsout
ofregulation.
APPLICATIONS
Reversebatteryprotectionisprovided.
•High-EfficiencyLinearRegulator
Theinternalvoltagereferenceismadeavailablefor
•RegulatorwithUnder-VoltageShutdown
externaluse,providingalow-T.C.referencewithvery
•LowDropoutBattery-PoweredRegulator
goodlineandloadregulation.
•Snap-ON/Snap-OFFRegulator
ConnectionDiagram
Note:Pins1,8,9,16mustbeshortedtogetheroncustomerPCboardapplication
Figure1.16-PinCFPPackage
1
Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof
TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
2Alltrademarksarethepropertyoftheirrespectiveowners.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
Copyright©2010–2013,TexasInstrumentsIncorporated
ProductsconformtospecificationsperthetermsoftheTexas
Instrumentsstandardwarranty.Productionprocessingdoesnot
necessarilyincludetestingofallparameters.
Produktspecifikationer
| Varumärke: | Texas Instruments |
| Kategori: | ej kategoriserat |
| Modell: | LP2953QML-SP |
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