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产品
3A
BUCK1
3A
BUCK2
300mA
LDO
IN1
EN1
SS1
IS1
SW1
FB1
IN2
EN2
SS2
IS2
SW2
FB2
IN3
EN3
SS3
OUT3
FB3
DGND AGND
TPS75003
IN3
OUT3
FB1
FB2
20
1
11
10
DGND
SS3
AGND
EN1
SS1
DGND
SW1
IN1
IS1
19
18
17
16
15
14
13
12
FB3
EN3
EN2
SS2
DGND
SW2
IN2
IS2
2
3
4
5
6
7
8
9
TPS75003
SBVS052A–OCTOBER2004–REVISEDDECEMBER2004
triple-supplypowermanagementic
forPoweringFPGAsandDSPs
•
TwoBuckControllersProvidingupto3Aand
TheTPS75003isacompletepowermanagement
One300mALDOforPowering3Supplies
solutionforfpga,dspandothermulti-supplyappli-
cations.thedevicehasbeentestedwithandmeets
•
TestedandEndorsedbyXilinxforPowering
allofthexilinxspartan-3andspartan-3lstart-向上
thespartan™-3andspartan-3lfpgas
profilerequirements,includingmonotonicvoltage
•
可调整的(1.2vto6.5vforbucks,0.9vto
rampandminimumvoltagerailrisetime.独立
6.5vforldo)outputvoltagesonall
Enablesforeachoutputallowsequencingtominimize
途径
demandonthepowersupplyatstart-向上.软-starton
eachsupplylimitsinrushcurrentduringstart-向上.二
•
independentsoft-startforeachsupply
integratedbuckcontrollersallowefficient,
•
IndependentEnableforEachSupply
费用-effectivevoltageconversionforbothlowand
•
ldostablewithsmall2.2µfceramicoutput
highcurrentsuppliessuchascoreandi/o.a300ma
Cap
LDOisintegratedtoprovideanauxiliaryrailsuchas
V
CCAUX
onthexilinxspartan-3fpga.allthree
•
inputvoltagerange:2.2vto6.5v
supplyvoltagesareofferedinuser-可编程序的
•
小,低-profile4.5mmx3.5mmx0.9mm
optionsformaximumflexibility.
QFNPackage
thetps75003isfullyspecifiedfrom-40
°
Cto+85
°
C
andisofferedinaqfnpackage,yieldingahighly
compacttotalsolutionsizewithhighpowerdissi-
•
FPGASupplies
pationcapability.
•
dsp/asicsupplies
•
SplitSupplyApplications
pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
spartanisatrademarkofxilinx,公司
allothertrademarksarethepropertyoftheirrespectiveowners.
productpreviewinformationconcernsproductsintheforma-
copyright©2004,texasinstrumentsincorporated
tiveordesignphaseofdevelopment.characteristicdataandother
specificationsaredesigngoals.texasinstrumentsreservesthe
righttochangeordiscontinuetheseproductswithoutnotice.
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