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LP3992

EN

OUT

GND

CAP

IN

V

IN

V

EN

V

OUT

1 PF

1 PF

C

OUT

C

IN

High= ON

Low= OFF

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LP3992

SNVS192C–OCTOBER2002–REVISEDNOVEMBER2015

LP3992Micropower1.5-VCMOSVoltageRegulatorWithShutdownControl

1Features3Description

TheLP3992regulatorisdesignedtomeetthe

1

•InputVoltage:1.9Vto5.2V

requirementsofportable,battery-poweredsystems

•OperationFromaLowInputVoltage:1.9V

providinganaccurateoutputvoltage,lownoise,and

•AccurateOutputVoltage:1.5V±0.09V

lowquiescentcurrent.Batterylifeisprolongedbythe

abilityoftheLP3992toprovidea1.5-Voutputfrom

•QuiescentCurrentinShutdown:<1.5µA

thelowinputvoltageof1.9V.Additionally,when

•StableWithanOutputCapacitor:1µF

switchedtoashutdownmodeviaalogicsignalatthe

•EnsuredOutputCurrent:30mA

enable(EN)pin,thepowerconsumptionisreduced

tovirtuallyzero.TheLP3992alsofeaturesshort-

•LowOutputVoltageNoise:300µV

RMS

circuitandthermal-shutdownprotection.

•LowQuiescentCurrent:29-µATypical

TheLP3992isdesignedtobestablewithspace-

•StableWithaCeramicCapacitor

savingceramiccapacitorsassmallas1µF.

•LogicControlledEnable

Performanceisspecifiedfora–40°Cto+125°C

•FastTurnonandTurnoff

temperaturerange.

•Thermal-OverloadandShort-CircuitProtection

Foroutputvoltagesotherthan1.5V,andfor

•–40°Cto+125°CJunctionTemperatureRange

additionalpackageoptions,contactTI.

2Applications

DeviceInformation

(1)

PARTNUMBERPACKAGEBODYSIZE(NOM)

•GSMPortablePhones

LP3992SOT-23(5)2.90mm×1.60mm

•CDMACellularHandsets

(1)Forallavailablepackages,seetheorderableaddendumat

•WidebandCDMACellularHandsets

theendofthedatasheet.

•BluetoothDevices

•PortableInformationAppliances

TypicalApplication

1

AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

Produktspecifikationer