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特性
产品
描述
V
I
地
地
V
O
R
#
设置
0.05 w
, 1%
(必需的)
C
*
I
100 F
Electrolytic
(必需的)
C
*
O
100 F
Electrolytic
(optional)
Inhibit
3
PTH08080W
标准 应用
(t
运算 v
iew )
1
2
5
4
* 看 这 电容 应用 信息
# 看 这 规格 表格 为 这 r 值.
设置
$ 二极管 是 必需的 当 v 5.25 v 和 v 16 v.
O I
> >
+
D1
$
PTH08080W
SLTS235A–FEBRUARY2005–REVISEDMARCH2005
2.25-一个,宽-inputadjustableswitchingregulator
•
ambienttemperaturerange:–40
°
Cto85
°
C
•
upto2.25-aoutputcurrentat85
°
C
•
表面-mountpackage
•
4.5-vto18-vinputvoltagerange
•
safetyagencyapprovals:
ul/cul60950,en60950vde(pending)
•
宽-outputvoltageadjust
(0.9vto5.5v)
•
EfficienciesUpTo93%
•
telecommunications,instumentation,
•
在/offinhibit
andgeneral-purposecircuits
•
undervoltagelockout(uvlo)
•
OutputOvercurrentProtection
(nonlatching,自动-重置)
•
OvertemperatureProtection
thepth08080wisahighlyintegrated,低-costswitchingregulatormodulethatdeliversupto2.25aofoutput
电流.thepth08080wsourcesoutputcurrentatamuchhigherefficiencythanato-220linearregulatoric,
therebyeliminatingtheneedforaheatsink.itssmallsize(0.5
×
0.6in)andflexibleoperationcreatesvaluefora
varietyofapplications.
theinputvoltagerangeofthepth08080wisfrom4.5vto18v,allowingoperationfromeithera5-vor12-v
inputbus.usingstate-的-这-artswitched-modepower-conversiontechnology,thepth08080wcanstepdownto
voltagesaslowas0.9vfroma5-vinputbus,withlessthan1wofpowerdissipation.theoutputvoltagecan
beadjustedtoanyvoltageovertherange,0.9vto5.5v,usingasingleexternalresistor.operatingfeatures
includeanundervoltagelockout(uvlo),在/offinhibit,overcurrentprotection,andovertemperatureprotection.
targetapplicationsincludetelecommunications,testandmeasurementapplications,andhigh-endconsumer
产品.thisproductisavailableinboththrough-holeandsurface-mountpackageoptions,includingtapeand
卷轴.
pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
productiondatainformationiscurrentasofpublicationdate.
copyright©2005,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
necessarilyincludetestingofallparameters.
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