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TYPICALCHARACTERISTICS
0
0.02
0.04
0.06
0.08
0.1
0.12
0.14
0.16
−40 −20 0 20 40 60 80 100 120 140
r
ds(在)
− n-频道 转变 −
T
一个
− temperature −
C
Ω
V
I
= 8 v,
V
I
= 12 v,
V
I
= 14 v
0
10
20
30
40
50
60
70
80
90
100
0 0.5 1 1.5 2
V
I
= 12 v,
V
O
= 15 v,
l = 10
H
I
O
− 输出 电流 − 一个
效率 − %
tps65160,tps65160a
SLVS566B–MARCH2005–REVISEDJULY2005
TABLEOFGRAPHS
图示
mainboostconverter(vs)
η
EfficiencymainboostconverterVsvsLoadcurrentV
S
=15v,v
在
=12V1
r
ds(在)
n-channelmainswitchq1vsinputvoltageandtemperature2
软-startboostconverterc
SS
=22nF3
pwmoperationatfull-loadcurrent4
pwmoperationatlight-loadcurrent5
Loadtransientresponse6
步伐-downconverter(vlogic)
η
EfficiencymainboostconverterV
S
vsLoadcurrentV
逻辑
=3.3v,v
在
=12V7
r
ds(在)
n-channelmainswitchq18
pwmoperation-continuousmode9
pwmoperation-discontinuousmode10
Softstart11
Loadtransientresponse12
SYSTEMPERFORMANCE
f
osc
OscillationfrequencyvsInputvoltageandtemperature13
电源-upsequencingen2connectedtov
在
14
电源-upsequencingen2enabledseperately15
BOOSTCONVERTEREFFICIENCYBOOSTCONVERTER
vsr
ds(在)
-n-channelswitch
OUTPUTCURRENTvs
温度
figure1.figure2.
7
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