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LP38693

IN

OUT

SNS

**

GND

1 µF *

1 µF *

V

OUT

V

IN

V

EN

EN

LP38691

IN

OUT

SNS

**

GND

1 µF *

1 µF *

V

OUT

V

IN

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Folder

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Technical

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Reference

Design

LP38691

,

LP38693

,

LP38691-Q1

,

LP38693-Q1

SNVS321O–JANUARY2005–REVISEDDECEMBER2015

LP3869x/-Q1500-mALow-DropoutCMOSLinearRegulators

StableWithCeramicOutputCapacitors

1Features3Description

TheLP3869xlow-dropoutCMOSlinearregulators

1

•WideInputVoltageRange(2.7Vto10V)

providetightoutputtolerance(2%typical),extremely

•AllWSONOptionsareAvailableasAEC-Q100

lowdropoutvoltage(250mVat500-mAloadcurrent,

Grade1

V

OUT

=5V),andexcellentACperformanceusing

•2%OutputAccuracy(25°C)

ultralowequivalentseriesresistance(ESR)ceramic

outputcapacitors.

•LowDropoutVoltage:250mVat500mA(Typical,

5VOut)

ThelowthermalresistanceoftheWSON,SOT-223,

andTO-252packagesallowuseofthefulloperating

•Precision(Trimmed)BandgapReference

currenteveninhighambienttemperature

•EnsuredSpecificationsfor–40°Cto125°C

environments.

•1-µAOff-StateQuiescentCurrent

TheuseofaPMOSpowertransistormeansthatno

•ThermalOverloadProtection

DCbase-drivecurrentisrequiredtobiasit,thus

•FoldbackCurrentLimiting

allowinggroundpincurrenttoremainbelow100µA

•GroundPinCurrent:55µA(typical)atfullloadregardlessofloadcurrent,inputvoltage,oroperating

temperature.

•EnablePin(LP38693)

DeviceInformation

(1)

2Applications

PARTNUMBERPACKAGEBODYSIZE(NOM)

•HardDiskDrives

TO-252(3)6.58mm×6.10mm

LP38691

•NotebookComputers

WSON(6)3.00mm×3.00mm

•Battery-PoweredDevices

SOT-223(5)6.50mm×3.56mm

LP38693

•PortableInstrumentation

WSON(6)3.00mm×3.00mm

LP38691-Q1

WSON(6)3.00mm×3.00mm

LP38693-Q1

(1)Forallavailablepackages,seetheorderableaddendumat

theendofthedatasheet.

4TypicalApplicationCircuits

*Minimumvaluerequiredforstability

*Minimumvaluerequiredforstability

**WSONpackagedevicesonly

**WSONpackagedevicesonly

1

AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

Produktspecifikationer