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LP5951

V

IN

OUT

GND

NC

IN

Enable Control,

active high

1

3

2

4

5

Load

EN

1 PF

1 PF

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LP5951

SNVS345G–JUNE2006–REVISEDDECEMBER2014

LP5951Micropower,150-mALow-DropoutCMOSVoltageRegulator

1Features3Description

TheLP5951regulatorisdesignedtomeetthe

1

•InputVoltageRange:1.8Vto5.5V

requirementsofportablebattery-poweredsystems

•OutputVoltageRange:1.3Vto3.7V

providingaregulatedoutputvoltageandlow

•ExcellentLineTransientResponse:±2mV

quiescentcurrent.Whenswitchedtoshutdownmode

(typical)

viaalogicsignalattheEnable(EN)pin,thepower

consumptionisreducedtovirtuallyzero.

•ExcellentPSRR:–60dBat1kHztypical

•LowQuiescentCurrentof29µAtypical

TheLP5951isdesignedtobestablewithsmall1-µF

ceramiccapacitors.Thedevicealsofeaturesinternal

•SmallSC70-5andSOT-23-5Packages

protectionagainstshort-circuitcurrentsandover-

•FastTurnonTimeof30µstyp.

temperatureconditions.

•Typical<1nAQuiescentCurrentinShutdown

Performanceisspecifiedfora–40°Cto125°C

•Ensured150-mAOutputCurrent

temperaturerange.

•LogicControlledEnable0.4V/0.9V

Thedeviceisavailableinfixedoutputvoltagesinthe

•GoodLoadTransientResponseof50mVpp

rangeof1.3Vto3.7V.Foravailability,please

(typical)

contactyourlocalTIsalesoffice.

•ThermalOverloadandShort-CircuitProtection

DeviceInformation

(1)

•-40°Cto125°CJunctionTemperatureRange

PARTNUMBERPACKAGEBODYSIZE(NOM)

SOT-23(5)2.90mmx1.60mm

2Applications

LP5951

SC70(5)2.00mmx1.25mm

GeneralPurpose

(1)Forallavailablepackages,seetheorderableaddendumat

theendofthedatasheet.

SimplifiedSchematic

1

AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

Produktspecifikationer