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描述/orderinginformation
LM317M
3-terminaladjustableregulator
SLVS297M–APRIL2000–REVISEDOCTOBER2005
•
outputvoltagerangeadjustablefrom1.25v
to37V
•
OutputCurrentGreaterThan500mA
•
internalshort-circuitcurrentlimiting
•
热-overloadprotection
•
outputsafe-areacompensation
•
QDevicesMeetAutomotivePerformance
要求
•
客户-specificconfigurationcontrolcan
BeSupportedforQDevicesAlongWith
专业-changeapproval
thelm317misanadjustable3-terminalpositive-voltageregulatorcapableofsupplyingmorethan500maover
anoutput-voltagerangeof1.25vto37v.thelm317misexceptionallyeasytouseandrequiresonlytwo
externalresistorstosettheoutputvoltage.此外,bothlineandloadregulationarebetterthanstandard
fixedregulators.
inadditiontohavinghigherperformancethanfixedregulators,thedeviceincludeson-chipcurrentlimiting,
热-overloadprotection,andsafe-操作-areaprotection.alloverloadprotectionremainsfullyfunctionalif
theadjustterminalisdisconnected.
正常情况下,nocapacitorsareneededunlessthedeviceismorethansixinchesfromtheinputfiltercapacitors,入点
whichcaseaninputbypasscapacitorisneeded.anoptionaloutputcapacitorcanbeaddedtoimprovetransient
响应.theadjustterminalcanbebypassedtoachievehighripple-rejectionratios,whicharedifficultto
achievewithstandardthree-terminalregulators.
ORDERINGINFORMATION
t
j
包装
(1)
orderablepartnumbertop-sidemarking
PowerFLEX™–KTPReelof2000LM317MKTPRLM317M
0
°
Cto125
°
CTubeof80LM317MDCY
SOT–DCYL4
Reelof2500LM317MDCYR
PowerFLEX–KTPReelof2000LM317MQKTPR317MQ
–40
°
Cto125
°
CLM317MQDCYRL5
SOT–DCYReelof2500
LM317MQDCYRG3L8
(1)packagedrawings,标准包装数量,thermaldata,符号化,andpcbdesignguidelinesareavailableat
www.ti.com/sc/包装.
pleasebeawarethatanimportantnoticeconcerningavailability,标准保修,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
powerflexisatrademarkoftexasinstruments.
productiondatainformationiscurrentasofpublicationdate.
copyright©2000–2005,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
必要包括测试所有参数.
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