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FEATURESDESCRIPTION
应用程序
EN1
nc
EN2
fb2/nc
NR
10
9
8
7
6
入点
重置
OUT1
OUT2
地
1
2
3
4
5
DRC 包装
3mm x 3mm 儿子
(顶部 查看)
80
70
60
50
40
30
20
10
0
PSRR (db)
10 100 1k 10k 100k 1M 10M
频率 (赫兹)
PSRR (波纹 拒收) vs 频率
v
出点
= 2.8 v (adj)
c
出点
= 2.2
µ
f
c
NR
= 0.01
µ
f
我
出点
= 1 ma
我
出点
= 250 ma
TPS71319
TPS71334
SBVS055A–DECEMBER2004–REVISEDJANUARY2005
dual250maoutput,ultralownoise,highpsrr,
低-dropoutlinearregulatorwithintegratedsvs
•
dual250mahigh-performancerfldos
thetps713xxfamilyoflow-辍学(ldo)电压
regulatorsistailoredtonoise-sensitiveandrfappli-
•
IntegratedSupplyVoltageSupervisor
阳离子.theseproductsfeaturedual250maldos
MonitorsV
OUT2
withultralownoise,highpower-supplyrejectionratio
•
AvailableinFixedandAdjustable
(psrr),andfasttransientandstart-upresponse.
voltageoptions(1.2vto5.5v)
Thesedevicesalsofeatureanintegratedsupply
•
highpsrr:65dbat10khz
voltagesupervisor(svs)thatmonitorsthevoltageat
OUT2andwillassertifthevoltagefallsto95%
•
ultralownoise:32µvrms
(典型)ofthemeasuredoutput.eachregulator
•
faststart-uptime:60µs
outputisstablewithlow-cost2.2µfceramicoutput
•
stablewith2.2µfceramiccapacitor
capacitorsandfeaturesverylowdropoutvoltages
(125mvtypicalat250ma).eachregulatorachieves
•
excellentload/linetransientresponse
faststart-uptimes(approximately60µswitha
•
verylowdropoutvoltage:125mvat250ma
0.001µfbypasscapacitor)whileconsumingverylow
•
IndependentEnablePins
quiescentcurrent(300µatypicalwithbothoutputs
已启用).whenthedeviceisplacedinstandby
•
ThermalShutdownandIndependentCurrent
模式,thesupplycurrentisreducedtolessthan
限制
0.3µatypical.eachregulatorexhibitsapproximately
•
availableinthermally-enhancedson
32µVrmsofoutputvoltagenoisewithV
出点
=2.8v
包装:3mmx3mmx1mm
anda0.01µfnoisereduction(nr)电容器.应用程序-
cationswithanalogcomponentsthatare
噪声敏感,suchasportablerfelectronics,将
•
CellularandCordlessPhones
benefitfromhighpsrr,低噪声,andfastlineand
loadtransientfeatures.thetps713xxfamilyis
•
wirelesspda/handheldproducts
offeredinathin3mmx3mmSONpackageandis
•
pcmcia/wirelesslanapplications
fullyspecifiedfrom-40
°
Cto+125
°
c(t
j
).
•
digitalcamera/camcorder/internetaudio
•
dsp/fpga/asic/controllersandprocessors
pleasebeawarethatanimportantnoticeconcerningavailability,标准保修,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
productiondatainformationiscurrentasofpublicationdate.
copyright©2004–2005,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
必要包括测试所有参数.
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