Texas Instruments LP3999 Handleiding

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LP3999

Enable Control,

Active high

Load

C

BYPASS

10 nF

1.0 uF

1.0 PF

V

IN

V

IN

V

OUT

GND

V

EN

C1

A3

B2

A1

C3

LP3999

www.ti.com

SNVS207E–JUNE2003–REVISEDMAY2013

LP3999LowNoise150mAVoltageRegulatorforRF/AnalogApplications

CheckforSamples:LP3999

1

FEATURES

APPLICATIONS

2

•5pinDSBGAPackage

•GSMPortablePhones

•StablewithCeramicCapacitor•CDMACellularHandsets

•LogicControlledEnable•WidebandCDMACellularHandsets

•FastTurn-on•BluetoothDevices

•Thermal-overloadandshort-circuitprotection•PortableInformationAppliances

•−40to+125°Cjunctiontemperaturerangefor•HandheldMP3Devices

operation

DESCRIPTION

KEYSPECIFICATIONS

TheLP3999regulatorisdesignedtomeetthe

requirementsofportablewirelessbattery-powered

•2.5Vto6.0VInputRange

applicationsandwillprovideanaccurateoutput

•AccurateOutputVoltage;±75mV/2%

voltagewithlownoiseandlowquiescentcurrent.

•60mVTypicalDropoutwith150mALoad.V

out

IdeallysuitedforpoweringRF/Analogdevicesthis

devicewillalsobeusedtomeetmoregeneralcircuit

>2.5V

requirements.

•VirtuallyZeroQuiescentCurrentwhen

Disabled

Forbatterypoweredapplicationsthelowdropoutand

lowgroundcurrentprovidedbythedeviceallowsthe

•10μVrmsOutputNoiseOver10Hzto100kHz

lifetimeofthebatterytobemaximized.Theinclusion

•Stablewitha1μFOutputCapacitor

ofanEnable(disable)controlcanbeusedbythe

•Ensured150mAOutputCurrent

systemtofurtherextendthebatterylifetimeby

reducingthepowerconsumptiontovirtuallyzero.

•FastTurn-onTime;140μs(Typ.)

Shouldtheapplicationrequireadevicewithanactive

disablefunctionpleaserefertodeviceLP3995.

TheLP3999alsofeaturesinternalprotectionagainst

short-circuitcurrentsandover-temperature

conditions.

TypicalApplicationCircuit

1

Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof

TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.

2Alltrademarksarethepropertyoftheirrespectiveowners.

PRODUCTIONDATAinformationiscurrentasofpublicationdate.

Copyright©2003–2013,TexasInstrumentsIncorporated

ProductsconformtospecificationsperthetermsoftheTexas

Instrumentsstandardwarranty.Productionprocessingdoesnot

necessarilyincludetestingofallparameters.

Product specificaties