www.德州仪器.com
TPS62110
TPS62111
TPS62112
SLVS585–JULY2005
electricalcharacteristics(持续)
V
I
=12v,v
O
=3.3v,i
O
=600ma,en=v
I
,t
一个
=–40
°
Cto85
°
c(unlessotherwisenoted)
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
I
lkg
syncinputleakagecurrentsync=gndorvin0.010.2µa
synctrip-pointhysteresis170mv
syncinputcurrent0.6v
≤
V
(同步)
≤
4V1020µA
Dutycycleofexternalclocksignal30%90%
输出
V
O
adjustableoutputvoltagerangetps621101.15316v
V
FB
feedbackvoltagetps621101.153v
FBleakagecurrentTPS6211010100nA
V
I
=3.1vto17v;
FeedbackvoltagetoleranceTPS62110–2%2%
0ma<i
O
<1500ma
(2)
V
I
=3.8vto17v;
TPS62111–3%3%
0ma<i
O
<1500ma
(2)
Fixedoutputvoltagetolerance
(3)
V
I
=5.5vto17v;
TPS62112–3%3%
0ma<i
O
<1500ma
(2)
V
I
≥
3v(onceundervoltagelockout
100
voltageexceeded)
V
I
≥
3.5v500
I
O
MaximumoutputcurrentmA
V
I
≥
4.3v1200
V
I
≥
6V1500
Currentintointernalvoltagedividerfor
5µA
fixedvoltageversions
V
I
=7.2v;v
O
=3.3v;i
O
=600mA
η
Efficiency92%
V
I
=12v,v
o
=5v,i
o
=600mA
Dutycyclerangeformainswitchesat1MHz10%100%
Minimumt
在
timeformainswitch100ns
Shutdowntemperature145
°
C
开始-uptimei
O
=800ma,v
I
=12v,v
o
=3.3v1ms
(2)themaximumoutputcurrentdependsontheinputvoltage.seethe
maximumoutputcurrent
forfurtherrestrictionsontheminimum
inputvoltage.
(3)theoutputvoltageaccuracyincludeslineandloadregulationoverthefulltemperatureranget
一个
=-40
°
Cto85
°
c.seethesectionfor
非-loadoperationinthisdatasheet.
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