6,4 mm x 9,7 mm
typical 尺寸
www.ti.com
FEATURESDESCRIPTION
应用程序
PVIN
Ph值
引导
PGND
vsense
输出
比较
AGND
VBIAS
电压
输入 1
TPS54073
*
*
*
*
可选
典型 应用程序
操作
右 = 1.5
l
v = 1.5 v
(核心)
v
我
/
o
= 3.3 v
500 mv/div
t - 时间 - 5 ms/div
启动 波形
与 3 预充电 二极管
VIN
电压
输入 2
TPS54073
SLVS547–FEBRUARY2005
2.2–4-v,14-asynchronousbuckconverter
withdisabledsinkingduringstart-向上
•
8-m
Ω
MOSFETSwitchesforHighEfficiencyat
asamemberoftheswift™familyofdc/dcregu-
14.5-apeakoutputcurrent
翻译人员,thetps54073low-inputvoltagehigh-输出
currentsynchronousbuckPWMconverterintegrates
•
separatelow-voltagepowerbus
allrequiredactivecomponents.includedonthe
•
disabledcurrentsinkingduringstart-向上
substratewiththelistedfeaturesareatrue,高
•
adjustableoutputvoltagedownto0.9v
业绩,voltageerroramplifierthatenables
maximumperformanceandflexibilityinchoosingthe
•
widepwmfrequency:fixed350khz,550khz
outputfilterlandccomponents;一个
orAdjustable280kHzto700kHz
欠压-lockoutcircuittopreventstart-upuntil
•
Synchronizableto700kHz
theinputvoltagereaches3v;aninternallyor
•
LoadProtectedbyPeakCurrentLimitand
externallysetslow-startcircuittolimitin-拉什
ThermalShutdown
电流;andapowergoodoutputusefulfor
处理器/logicreset,faultsignaling,andsupplyse-
•
IntegratedSolutionReducesBoardAreaand
查询.
TotalCost
forreliablepowerupinoutputprechargeappli-
阳离子,thetps54073isdesignedtoonlysource
currentduringstart-向上.
•
低电压,高-densitydistributedpower
系统
TheTPS54073isavailableinathermallyenhanced
•
pointofloadregulationforhigh-
28-pintssop(pwp)powerpad™package,哪个
performancedsps,fpgas,asics,和
eliminatesbulkyheatsinks.tiprovidesevaluation
微处理器
modulesandtheSWIFT™designersoftwaretoolto
aidinquicklyachievinghigh-performancepower
•
宽带,联网,andoptical
supplydesignstomeetaggressiveequipmentdevel-
CommunicationsInfrastructure
opmentcycles
•
PowerPCSeriesProcessors
pleasebeawarethatanimportantnoticeconcerningavailability,标准保修,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
swift,powerpadaretrademarksoftexasinstruments.
productiondatainformationiscurrentasofpublicationdate.
copyright©2005,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
必要包括测试所有参数.
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