Texas Instruments LP5990 Bruksanvisning

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1.0 µF

V

OUT

GND

V

IN

V

EN

C

IN

C

OUT

V

IN

V

OUT

V

EN

GND

1.0 µF

LP5990

Capacitor Case

Size = 0402

LP5990

www.ti.com

SNVS438B–APRIL2007–REVISEDDECEMBER2007

LP5990Micropower200mACMOSLowDropoutVoltageRegulator

CheckforSamples:LP5990

1

FEATURES

DESCRIPTION

TheLP5990regulatorisdesignedtomeetthe

2

•Operationfrom2.2Vto5.5VInput

requirementsofportable,battery-poweredsystems

•±1%AccuracyOverTempRange

providinganaccurateoutputvoltage,lownoiseand

•OutputVoltagefrom0.8Vto3.6Vin50mV

lowquiescentcurrent.

Increments

TheLP5990willprovidea1.8Voutputfromalow

•30μAQuiescentCurrent(Enabled)

inputvoltageof2.2Vandcanprovide200mAtoan

externalload.

•10nAQuiescentCurrent(Disabled)

•160mVDropoutat200mALoad

Whenswitchedintoshutdownmodeviaalogicsignal

attheenablepin,thepowerconsumptionisreduced

•60μV

RMS

OutputVoltageNoise

tovirtually

•60μsStart-UpTime

zero.

•500μsShut-DownTime

•PSRR55dBat10kHz

Fastshut-downisachievedbythepushpull

architecture.

•Stablewith04021.0µFCeramicCapacitors

TheLP5990isdesignedtobestablewithspace

•LogicControlledEnable

saving0402ceramiccapacitorsassmallas1µF,this

•Thermal–OverloadandShort–Circuit

givesanoverallsolutionsizeof<2.5mm

2

.

Protection

Performanceisspecifiedfora-40°Cto125°C

junctiontemperaturerange.

APPLICATIONS

•CellularPhones

ThedeviceisavailableinDSBGAPackage(0.4mm

pitch)andisavailablewith

•Hand–HeldInformationAppliances

1.2V,1.3V,1.8V,2.8V,3.0V,3.3Vand3.6Voutputs.

Lowervoltageoptionsdownto0.8Vareavailableon

PACKAGE

request.Forallotheroutputvoltageoptionsplease

•4-BumpDSBGA,0.4mmPitch866µmx917

contactyourlocalTIsalesoffice.

µm(LeadFree)

TYPICALAPPLICATIONCIRCUIT

1

Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof

TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.

2Alltrademarksarethepropertyoftheirrespectiveowners.

PRODUCTIONDATAinformationiscurrentasofpublicationdate.

Copyright©2007,TexasInstrumentsIncorporated

ProductsconformtospecificationsperthetermsoftheTexas

Instrumentsstandardwarranty.Productionprocessingdoesnot

necessarilyincludetestingofallparameters.

Produktspecifikationer