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应用程序
1
2
3
4
5
dcq p组件
重置/fb
出点
地
入点
启用
sot223-5
(top 查看)
1
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3
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8
7
6
5
出点
fb
地
nc
入点
地
地
启用
d p组件
(top 查看)
nc − 否 内部 连接
1
ktt p组件
(top 查看)
2 3 4 5
启用
入点
地
出点
DDPAK
重置/fb
TPS72501
tps72515,tps72516
tps72518,tps72525
SLVS341D–MAY2002–REVISEDMARCH2004
lowinputvoltage,1-alow-dropoutlinearregulatorswithsupervisor
•
1-aoutputcurrent
thetps725xxfamilyof1-alow-辍学(ldo)线性
regulatorshasfixedvoltageoptionsavailablethatare
•
availablein1.5-v,1.6-v,1.8-v,2.5-v
commonlyusedtopowerthelatestdsps,fpgas,
固定-outputandadjustableversions
和微控制器.anadjustableoptionranging
(1.2-vto5.5-v)
from1.22vto5.5visalsoavailable.theintegrated
•
inputvoltagedownto1.8v
supervisorycircuitryprovidesanactivelowRESET
•
low170-mvdropoutvoltageat1a
signalwhentheoutputfallsoutofregulation.theno
(tps72525)
电容器/anycapacitorfeatureallowsthecustomer
totailoroutputtransientperformanceasneeded.
•
stablewithanytype/valueoutputcapacitor
因此,comparedtootherregulatorscapableof
•
integratedsupervisor(svs)with50-ms
providingthesameoutputcurrent,thisfamilyof
RESETDelayTime
regulatorscanprovideastand-alonepowersupply
•
low210-µagroundcurrentatfullload
solutionorapostregulatorforaswitchmodepower
供应.
(tps72525)
•
lessthan1-µastandbycurrent
theseregulatorsareidealforhighercurrentappli-
阳离子.thefamilyoperatesoverawiderangeof
•±
2%outputvoltagetoleranceoverline,
inputvoltages(1.8vto6v)andhasverylow
荷载,andtemperature(-40
°
Cto125
°
c)
辍学(170mvat1-一个).
•
IntegratedUVLO
Groundcurrentistypically210µAatfullloadand
•
ThermalandOvercurrentProtection
dropstolessthan80µaatnoload.standbycurrent
•
5-leadsot223-5orddpakand8-pinsop
islessthan1µa.
(tps72501only)surfacemountpackage
Eachregulatoroptionisavailableineithera
sot223-5,d(tps72501only),orddpakpackage.
Withalowinputvoltageandproperlyheatsinked
•
PCICards
包装,theregulatordissipatesmorepowerand
•
ModemBanks
achieveshigherefficienciesthansimilarregulators
•
TelecomBoards
requiring2.5vormoreminimuminputvoltageand
higherquiescentcurrents.thesefeaturesmakeita
•
dsp,fpga,andmicroprocessorpower
viablepowersupplysolutionforportable,蝙蝠-
供应品
tery-poweredequipment.
•
便携式,蓄电池-poweredapplications
备注:tps72501replacesresetwithfb.tabisgndforthedckandkttpackages.
pleasebeawarethatanimportantnoticeconcerningavailability,标准保修,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
productiondatainformationiscurrentasofpublicationdate.
copyright©2002–2004,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
必要包括测试所有参数.
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