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FEATURESDESCRIPTION
应用程序
3
2
4
5
dbv 包装
(顶部 查看)
1
入点
地
en
出点
NR
固定 选项
3
2
4
6
dbv 包装
(顶部 查看)
1
入点
地
en
出点
NR
5
fb
可调 选项
TPS79328
波纹拒收
vs
频率
入点
en
出点
NR
地
YEQ
包装
(顶部查看)
10 100 1 k 10 k
10
40
80
100 k 1 m 10 m
波纹 拒收 (db)
频率 (赫兹)
我
出点
= 10 ma
50
0
v
入点
= 3.8 v
c
出点
= 10
µ
f
c
NR
= 0.01
µ
f
我
出点
= 200 ma
20
30
60
70
90
100
A3 A1
C3 C1
B2
0
0.05
0.10
0.15
0.20
0.25
0.30
100 1 k 10 k 100 k
频率 (赫兹)
我
出点
= 1 ma
v
入点
= 3.8 v
c
出点
= 2.2
µ
f
c
NR
= 0.1
µ
f
我
出点
= 200 ma
TPS79328
输出光谱 噪声 密度
vs
频率
输出光谱 噪声 密度 (
µ
v/
√
赫兹)
tps79301,tps79318
tps79325,tps79328,tps793285
tps79330,tps79333,tps793475
SLVS348H–JULY2001–REVISEDOCTOBER2004
超低-噪声,highpsrr,fastrf200-malow-dropoutlinear
REGULATORSINNanoStar™WAFERCHIPSCALEANDSOT23
•
200-marflow-dropoutregulator
thetps793xxfamilyoflow-辍学(ldo)
WithEnable
低-powerlinearvoltageregulatorsfeatureshigh
电源-supplyrejectionratio(psrr),超低-噪声,
•
availablein1.8-v,2.5-v,2.8-v,2.85-v,3-v,
faststart-向上,andexcellentlineandloadtransient
3.3-v,4.75-v,andadjustable(1.22-vto5.5-v)
responsesinNanoStarwaferchipscaleandSOT23
•
highpsrr(70dbat10khz)
软件包.nanostarpackaginggivesanultrasmall
•
超低-噪声(32µv
rms
,tps79328)
footprintaswellasanultralowprofileandpackage
重量,makingitidealforportableapplicationssuch
•
faststart-uptime(50µs)
ashandsetsandpdas.eachdeviceinthefamilyis
•
stablewitha2.2-µfceramiccapacitor
稳定,withasmall2.2-µfceramiccapacitoronthe
•
excellentload/linetransientresponse
输出.thetps793xxfamilyusesanadvanced,
proprietarybicmosfabricationprocesstoyieldex-
•
verylowdropoutvoltage(112mvatfull
tremelylowdropoutvoltages(e?.g.,112mvat
荷载,tps79330)
200ma,tps79330).eachdeviceachievesfast
•
5-and6-pinsot23(dbv)andnanostarwafer
开始-uptimes(approximately50µswitha0.001-µf
chipscale(yeq)软件包
bypasscapacitor)whileconsumingverylowquiesc-
entcurrent(170µatypical).此外,whenthe
deviceisplacedinstandbymode,thesupplycurrent
•
rf:vcos,接收器,adcs
isreducedtolessthan1µa.thetps79328exhibits
approximately32µV
rms
ofoutputvoltagenoiseat
•
音频
2.8-voutputwitha0.1-µfbypasscapacitor.应用程序-
•
CellularandCordlessTelephones
cationswithanalogcomponentsthatare
•
bluetooth™,wirelesslan
噪声敏感,suchasportablerfelectronics,
•
handheldorganizers,pdas
benefitfromthehighpsrrandlow-noisefeatures
aswellasthefastresponsetime.
figure1.
pleasebeawarethatanimportantnoticeconcerningavailability,标准保修,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
bluetoothisatrademarkofbluetoothsig,公司
nanostarisatrademarkoftexasinstruments.
unlessotherwisenotedthisdocumentcontainspro-
copyright©2001–2004,texasinstrumentsincorporated
ductiondatainformationcurrentasofpublicationdate.产品-
uctsconformtospecificationsperthetermsofTexasInstruments
标准保修.productionprocessingdoesnotnecessarily
includetestingofallparameters.
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