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OUT

IN

GND

LP38513

V

IN

V

OUT

EN

V

EN

10 k:

ERROR

V

ERROR

C

IN

10 PF

Ceramic

C

OUT

10 PF

Ceramic

GND

GND

ON

OFF

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Reference

Design

LP38513

SNVS361E–JULY2007–REVISEDNOVEMBER2015

LP385133-AFastResponseUltra-LowDropoutLinearRegulator

1Features3Description

TheLP38513fast-responseultra-lowdropoutlinear

1

•InputSupplyVoltage2.25Vto5.5V

regulatoroperatesfroma2.25-Vto5.5-Vinput

•Conversionsfrom2.5-VRailto1.8-VRail

supply.Thisdevicerespondsveryquicklytostep

•StablewithCeramicCapacitors

changesinlineorloadconditions,makingitsuitable

forlow-voltagemicroprocessorapplications.

•LowGroundPinCurrent

DevelopedonaCMOSprocess,withaPMOSpass

•LoadRegulationof0.1%for10mAto3-ALoad

transistor,theLP38513haslowquiescent-current

Current

operationindependentoftheoutputloadcurrent.

•60-μATypicalQuiescentCurrentinShutdown

•GroundPinCurrent:Typically12mAat3-Aload

Mode

current.

•SpecifiedOutputCurrentof3A

•DisableMode:Typically60µAquiescentcurrent

whentheenable(EN)pinispulledlow.

•SpecifiedV

OUT

Accuracyof±2.6%With

•ERRORFlag:TheERRORflaggoeslowifV

OUT

T

J

from0°Cto+125°C

fallsmorethantypically15%belowthenominal

•ERRORFlagIndicatesV

OUT

Status

value.

•OvertemperatureandOvercurrentProtection

•PrecisionOutputVoltage:AspecifiedV

OUT

•−40°Cto+125°COperatingT

J

Range

accuracyof±2.6%withT

J

from0°Cto125°C.

2Applications

DeviceInformation

(1)

PARTNUMBERPACKAGEBODYSIZE(NOM)

•MicroprocessorPowerSupplies

TO-220(5)14.986mm×10.16mm

•GTL,GTL+,BTL,andSSTLBusTerminators

LP38513

DDPAK/TO-263(5)10.16mm×8.42mm

•PowerSuppliesforDSPs

(1)Forallavailablepackages,seetheorderableaddendumat

•SCSITerminator

theendofthedatasheet.

•PostRegulators

•BatteryChargers

•OtherBatteryPoweredApplications

TypicalApplication

1

AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

Produktspecifikationer