www.德州仪器.com
typicalcharacteristics(12-vinput)
(1)(2)
0
20
40
60
80
100
0 0.5 1 1.5 2 2.5
V
O
= 2.5 v
V
O
= 1.5 v
V
O
= 1.2 v
V
O
= 5 v
V
O
= 3.3 vv
O
= 1.8 v
I
O
− 输出 电流 − 一个
− 输出 voltage 波纹 − mv
V
O PP
50
60
70
80
90
100
0 0.5 1 1.5 2 2.5
V
O
= 5 v
V
O
= 3.3 v
V
O
= 2.5 v
V
O
= 1.8 v
V
O
= 1.5 v
V
O
= 1.2 v
效率 − %
I
O
− 输出 电流 − 一个
0
0.25
0.5
0.75
1
0 0.5 1 1.5 2 2.5
V
O
= 5 v
V
O
= 3.3 v
V
O
= 2.5 v
V
O
= 1.2 v
I
O
− 输出 电流 − 一个
− 电源 消耗 − w
P
D
V
O
= 1.8v
V
O
= 1.5 v
20
30
40
50
60
70
80
90
0.25 0.75 1.25 1.75 2.25
Airflow
nat conv
I
O
− 输出 电流 − 一个
Temperature 减额 −
C
PTH08080W
SLTS235A–FEBRUARY2005–REVISEDMARCH2005
EFFICIENCYOUTPUTRIPPLE
vsvs
OUTPUTCURRENTOUTPUTCURRENT
figure6.figure7.
POWERDISSIPATIONTEMPERATUREDERATING
vsvs
OUTPUTCURRENTOUTPUTCURRENT
figure8.figure9.
(1)theelectricalcharacteristicdatahasbeendevelopedfromactualproductstestedat25
°
c.thisdataisconsideredtypicalforthe
转换器.appliestofigure6,figure7,andfigure8.
(2)thetemperaturederatingcurvesrepresenttheconditionsatwhichinternalcomponentsareatorbelowthemanufacturer'smaximum
operatingtemperatures.deratinglimitsapplytomodulessoldereddirectlytoa100-mmx100-mm,翻倍-sidedpcbwith2-oz.铜.
appliestofigure9.
6