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1
2
3
4
5
dcq pACKAGE
重置/fb
输出
地
在
使能
sot223-5
(t运算 视图)
1
2
3
4
8
7
6
5
输出
FB
地
NC
在
地
地
使能
d pACKAGE
(t运算 视图)
nc − 非 内部的 连接
1
ktt pACKAGE
(t运算 视图)
2 3 4 5
使能
在
地
输出
DDPAK
重置/fb
TPS72501
tps72515,tps72516
tps72518,tps72525
SLVS341D–MAY2002–REVISEDMARCH2004
lowinputvoltage,1-alow-dropoutlinearregulatorswithsupervisor
•
1-aoutputcurrent
thetps725xxfamilyof1-alow-落后(ldo)直线的
regulatorshasfixedvoltageoptionsavailablethatare
•
availablein1.5-v,1.6-v,1.8-v,2.5-v
commonlyusedtopowerthelatestdsps,fpgas,
fixed-outputandadjustableversions
andmicrocontrollers.anadjustableoptionranging
(1.2-vto5.5-v)
from1.22vto5.5visalsoavailable.theintegrated
•
inputvoltagedownto1.8v
supervisorycircuitryprovidesanactivelowRESET
•
low170-mvdropoutvoltageat1a
signalwhentheoutputfallsoutofregulation.theno
(tps72525)
电容/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-
cations.thefamilyoperatesoverawiderangeof
•±
2%outputvoltagetoleranceoverline,
inputvoltages(1.8vto6v)andhasverylow
加载,andtemperature(-40
°
Cto125
°
c)
落后(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,bat-
供应
tery-poweredequipment.
•
可携带的,电池-poweredapplications
便条:tps72501replacesresetwithfb.tabisgndforthedckandkttpackages.
pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
productiondatainformationiscurrentasofpublicationdate.
copyright©2002–2004,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
necessarilyincludetestingofallparameters.
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