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OUT

IN

GND

LP38512-ADJ

V

IN

V

OUT

EN

V

EN

C

IN

10 PF

Ceramic

C

OUT

10 PF

Ceramic

GND

GND

ON

OFF

C

FF

ADJ

R1

R2

LP38512-ADJ

www.ti.com

SNVS546D–JANUARY2009–REVISEDAPRIL2013

LP38512-ADJ1.5AFast-TransientResponseAdjustableLow-DropoutLinearVoltage

Regulator

CheckforSamples:LP38512-ADJ

1

FEATURES

APPLICATIONS

2

•2.25Vto5.5VInputVoltageRange

•DigitalCoreASICs,FPGAs,andDSPs

•AdjustableOutputVoltageRangeof0.5Vto•Servers

4.5V

•RoutersandSwitches

•1.5AOutputLoadCurrent

•BaseStations

•±2.0%AccuracyoverLine,Load,andFull-

•StorageAreaNetworks

TemperatureRangefrom-40°Cto+125°C

•DDR2Memory

•StablewithTiny10µFCeramicCapacitors

DESCRIPTION

•EnablePin

TheLP38512-ADJFast-TransientResponseLow-

DropoutVoltageRegulatoroffersthehighest-

•TypicallyLessthan1µAofGroundPinCurrent

performanceinmeetingACandDCaccuracy

inwhenEnablePinisLow

requirementsforpoweringDigitalCores.The

•25dBofPSRRat100kHz

LP38512-ADJusesaproprietarycontrolloopthat

•Over-TemperatureandOver-Current

enablesextremelyfastresponsetochangeinline

Protection

conditionsandloaddemands.OutputVoltageDC

accuracyisspecifiedat2.5%overline,loadandfull

•8-PinSOPowerPadand5-PinPFMSurface

temperaturerangefrom-40°Cto+125°C.The

MountPackages

LP38512-ADJisdesignedforinputsfromthe2.5V,

3.3V,and5.0Vrail,isstablewith10μFceramic

capacitors,andhasanadjustableoutputvoltage.The

LP38512-ADJprovidesexcellenttransient

performancetomeetthedemandofhigh

performancedigitalcoreASICs,DSPs,andFPGAs

foundinhighly-intensiveapplicationssuchasservers,

routers/switches,andbasestations.

TypicalApplicationCircuit

1

Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof

TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.

2Alltrademarksarethepropertyoftheirrespectiveowners.

PRODUCTIONDATAinformationiscurrentasofpublicationdate.

Copyright©2009–2013,TexasInstrumentsIncorporated

ProductsconformtospecificationsperthetermsoftheTexas

Instrumentsstandardwarranty.Productionprocessingdoesnot

necessarilyincludetestingofallparameters.

Product specificaties