Texas Instruments LP5904 Bruksanvisning

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V

IN

V

EN

GND

V

OUT

OUTPUT

1 PF

1.0 PF

INPUT

ENABLE

GND

LP5904

SVA-30110401

LP5904

www.ti.com

SNVS637G–MARCH2011–REVISEDAPRIL2013

UltraLowNoise,200mALinearRegulatorforRF/Analog

Circuits-RequiresNoBypassCapacitor

CheckforSamples:LP5904

1

FEATURES

PACKAGE

•Stablewith1.0µFCeramicInputandOutput•4-BumpDSBGA(leadfree)

Capacitors

0.815mm×0.815mm×0.600mm

•NoNoiseBypassCapacitorRequired

DESCRIPTION

•RemoteOutputCapacitorPlacement

TheLP5904isalinearregulatorcapableofsupplying

•Thermal-overloadandShort-circuitProtection

200mAoutputcurrent.Designedtomeetthe

•–40°Cto+125°CJunctionTemperatureRange

requirementsofRF/Analogcircuits,theLP5904

forOperation

deviceprovideslownoise,highPSRR,lowquiescent

current,andlowlinetransientresponsefigures.Using

APPLICATIONSnewinnovativedesigntechniquestheLP5904offers

class-leadingdevicenoiseperformancewithouta

•CellularPhones

noisebypasscapacitorandtheabilityforremote

•PDAHandsets

outputcapacitorplacement.Anactivepulldowncircuit

witha280Ωresistoriswiredfromtheoutputto

•WirelessLANDevices

groundpinstoquicklydischargeoutputwhenthe

deviceisdisabled(VEN=low).

KEYSPECIFICATIONS

Thedeviceisdesignedtoworkwitha1.0µFinput

•InputVoltageRange…2.2Vto5.5V

anda1.0µFoutputceramiccapacitor.(NoBypass

•OutputVoltageRange…1.2Vto4.4V

Capacitorisrequired.)

•OutputCurrent…200mA

ThedeviceisavailableinaDSBGApackage.For

•LowOutputVoltageNoiseat

otherpackageoptionscontactyourlocalTIsales

200mA…6.5µVRMS

office.

•PSRR…78dBat1kHz

Thisdeviceisavailablebetween1.2Vand4.4Vin

•OutputVoltageTolerance…±2%

25mVsteps.PleasecontactTexasInstruments

Salesforspecificvoltageoptionneeds.

•VirtuallyZeroIQ(Disabled)…<1µA

•VeryLowIQ(Enabled)…11µA

•StartupTime…85µs

•LowDropout…95mVtyp

TYPICALAPPLICATIONCIRCUIT

1

Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof

TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.

PRODUCTIONDATAinformationiscurrentasofpublicationdate.

Copyright©2011–2013,TexasInstrumentsIncorporated

ProductsconformtospecificationsperthetermsoftheTexas

Instrumentsstandardwarranty.Productionprocessingdoesnot

necessarilyincludetestingofallparameters.

Produktspecifikationer