Texas Instruments LP3856 Handleiding
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V
OUT
V
IN
GND
LP3856-1.8
C
OUT
*
10 PF
C
IN
*
INPUT
V
OUT
10 PF
SD
SD**
SENSE
1.8V, 3.0A
3.3V ± 10%
* TANTALUM OR
CERAMIC
V
OUT
V
IN
GND
LP3853-1.8
C
OUT
*
10 PF
C
IN
*
INPUT
V
OUT
10 PF
ERROR**
SD
SD**
ERROR
1.8V, 3.0A
3.3V ± 10%
* TANTALUM OR
CERAMIC
LP3853,LP3856
www.ti.com
SNVS173G–FEBRUARY2003–REVISEDAPRIL2013
LP3853/LP38563AFastResponseUltraLowDropoutLinearRegulators
CheckforSamples:LP3853,LP3856
1
FEATURES
DESCRIPTION
TheLP3853/LP3856seriesoffastultralow-dropout
2
•UltraLowDropoutVoltage
linearregulatorsoperatefroma+2.5Vto+7.0Vinput
•StablewithSelectedCeramicCapacitors
supply.Widerangeofpresetoutputvoltageoptions
•LowGroundPinCurrent
areavailable.Theseultralowdropoutlinear
regulatorsrespondveryquicklytostepchangesin
•LoadRegulationof0.08%
load,whichmakesthemsuitableforlowvoltage
•10nAQuiescentCurrentinShutdownMode
microprocessorapplications.TheLP3853/LP3856are
•EnsuredOutputCurrentof3ADC
developedonaCMOSprocesswhichallowslow
quiescentcurrentoperationindependentofoutput
•AvailableinTO-263andTO-220Packages
loadcurrent.ThisCMOSprocessalsoallowsthe
•OutputVoltageAccuracy±1.5%
LP3853/LP3856tooperateunderextremelylow
•ErrorFlagIndicatesOutputStatus
dropoutconditions.
•SenseOptionImprovesLoadRegulation
DropoutVoltage:Ultralowdropoutvoltage;typically
•Overtemperature/overcurrentProtection
39mVat300mAloadcurrentand390mVat3Aload
current.
•−40°Cto+125°CJunctionTemperatureRange
GroundPinCurrent:Typically4mAat3Aload
APPLICATIONS
current.
•MicroprocessorPowerSupplies
ShutdownMode:Typically10nAquiescentcurrent
•StablewithCeramicOutputCapacitors
whentheshutdownpinispulledlow.
•GTL,GTL+,BTL,andSSTLBusTerminators
ErrorFlag:Errorflaggoeslowwhentheoutput
voltagedrops10%belownominalvalue.
•PowerSuppliesforDSPs
•SCSITerminator
SENSE:Sensepinimprovesregulationatremote
loads.
•PostRegulators
•HighEfficiencyLinearRegulators
PrecisionOutputVoltage:Multipleoutputvoltage
optionsareavailablerangingfrom1.8Vto5.0Vwitha
•BatteryChargers
ensuredaccuracyof±1.5%atroomtemperature,and
•OtherBatteryPoweredApplications
±3.0%overallconditions(varyingline,load,and
temperature).
TypicalApplicationCircuits
**SDandERRORpinsmustbepulledhighthrougha10kΩpull-upresistor.ConnecttheERRORpintogroundifthis
functionisnotused.SeeApplicationHintsformoreinformation.
**SDpinmustbepulledhighthrougha10kΩpull-upresistor.SeeApplicationHintsformoreinformation.
1
Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof
TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
2Alltrademarksarethepropertyoftheirrespectiveowners.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
Copyright©2003–2013,TexasInstrumentsIncorporated
ProductsconformtospecificationsperthetermsoftheTexas
Instrumentsstandardwarranty.Productionprocessingdoesnot
necessarilyincludetestingofallparameters.
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | LP3856 |
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