www.德州仪器.com
typicalcharacteristics(5-vinput)
(1)(2)
V
O
= 2.5 v
V
O
= 1.8 v
I
O
− 输出 电流 − 一个
− 输出 voltage 波纹 − mv
V
O PP
0
10
20
30
40
50
0 0.25 0.5 0.75 1 1.25 1.5 1.75 2 2.25
V
O
= 3.3 v
V
O
= 1 v
V
O
= 0.9 v
V
O
= 1.5 v
V
O
= 1.2 v
40
50
60
70
80
90
100
0 0.25 0.5 0.75 1 1.25 1.5 1.75 2 2.25
效率 − %
V
O
= 2.5 v
V
O
= 1.2 v
I
O
− 输出 电流 − 一个
V
O
= 3.3 v
V
O
= 1.8 v
V
O
= 1.5 v
V
O
= 1 v
V
O
= 0.9 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
0
0.25
0.5
0.75
1
0 0.25 0.5 0.75 1 1.25 1.5 1.75 2 2.25
V
O
= 1.5 v
I
O
− 输出 电流 − 一个
V
O
= 1.2 v
− 电源 消耗 − w
P
D
V
O
= 3.3 v
V
O
= 2.5 v
V
O
= 1.8 v
V
O
= 1 v
V
O
= 0.9 v
PTH08080W
SLTS235A–FEBRUARY2005–REVISEDMARCH2005
EFFICIENCYOUTPUTRIPPLE
vsvs
OUTPUTCURRENTOUTPUTCURRENT
figure2.figure3.
POWERDISSIPATIONTEMPERATUREDERATING
vsvs
OUTPUTCURRENTOUTPUTCURRENT
figure4.figure5.
(1)theelectricalcharacteristicdatahasbeendevelopedfromactualproductstestedat25
°
c.thisdataisconsideredtypicalforthe
转换器.appliestofigure2,figure3,andfigure4.
(2)thetemperaturederatingcurvesrepresenttheconditionsatwhichinternalcomponentsareatorbelowthemanufacturer'smaximum
operatingtemperatures.deratinglimitsapplytomodulessoldereddirectlytoa100-mmx100-mm,翻倍-sidedpcbwith2-oz.铜.
appliestofigure5.
5