Texas Instruments LP3874-ADJ Handleiding
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LP3874-ADJ
V
IN
V
OUT
ADJ
GND
C
IN
10 PF
C
OUT
10 PF
Tantalum
INPUT
OUTPUT
0.8A
R1*
R2*
C
FF
*
*
V
OUT
= 1.216 x (1+
R1
R2
)
SDSD
LP3874-ADJ
www.ti.com
SNVS246E–SEPTEMBER2003–REVISEDAPRIL2013
LP3874-ADJ0.8AFastUltraLowDropoutLinearRegulators
CheckforSamples:LP3874-ADJ
1
FEATURES
DESCRIPTION
TheLP3874-ADJfastultralow-dropoutlinear
2
•UltraLowDropoutVoltage
regulatorsoperatefroma+2.5Vto+7.0Vinput
•LowGroundPinCurrent
supply.Theseultralowdropoutlinearregulators
•LoadRegulationof0.04%
respondveryquicklytostepchangesinload,which
makesthemsuitableforlowvoltagemicroprocessor
•10nAQuiescentCurrentinShutdownMode
applications.TheLP3874-ADJisdevelopedona
•SpecifiedOutputCurrentof0.8ADC
CMOSprocesswhichallowslowquiescentcurrent
•AvailableinDDPAK/TO-263,TO-220andSOT-
operationindependentofoutputloadcurrent.This
223Packages
CMOSprocessalsoallowstheLP3874-ADJto
operateunderextremelylowdropoutconditions.
•MinimumOutputCapacitorRequirements
•Overtemperature/OvercurrentProtection
DropoutVoltage:Ultralowdropoutvoltage;typically
24mVat80mAloadcurrentand240mVat0.8Aload
•−40°Cto+125°CJunctionTemperatureRange
current.
APPLICATIONS
GroundPinCurrent:Typically6mAat0.8Aload
current.
•MicroprocessorPowerSupplies
ShutdownMode:Typically10nAquiescentcurrent
•GTL,GTL+,BTL,andSSTLBusTerminators
whentheshutdownpinispulledlow.
•PowerSuppliesforDSPs
AdjustableOutputVoltage:Theoutputvoltagemay
•SCSITerminator
beprogrammedviatwoexternalresistors.
•PostRegulators
•HighEfficiencyLinearRegulators
•BatteryChargers
•OtherBatteryPoweredApplications
TYPICALAPPLICATIONCIRCUIT
*SeeApplicationHints
1
Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof
TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
2Alltrademarksarethepropertyoftheirrespectiveowners.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
Copyright©2003–2013,TexasInstrumentsIncorporated
ProductsconformtospecificationsperthetermsoftheTexas
Instrumentsstandardwarranty.Productionprocessingdoesnot
necessarilyincludetestingofallparameters.
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | LP3874-ADJ |
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