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L5980 数据表(PDF) 31 Page - STMicroelectronics

部件名 L5980
功能描述  0.7A step-down switching regulator
PDF  37 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L5980 数据表(HTML) 31 Page - STMicroelectronics

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L5980
Application informations
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Figure 22.
Junction temperature vs. output
current
Figure 23.
Junction temperature vs. output
current
Figure 24.
Junction temperature vs. output
current
Figure 25.
Efficiency vs. output current
Figure 26.
Efficiency vs.output current
Figure 27.
Efficiency vs. output current
70
75
80
85
90
95
0.1
0.2
0.3
0.4
0.5
0.6
0.7
Io [A]
VCC=12V
FSW=250KHz
Vo=5.0V
Vo=3.3
Vo=2.5V
76
78
80
82
84
86
88
90
92
94
0.1
0.2
0.3
0.4
0.5
0.6
0.7
Io [A]
VCC=5V
FSW=250KHz
Vo=3.3V
Vo=2.5V
Vo=1.8V
65
70
75
80
85
90
95
0.1
0.2
0.3
0.4
0.5
0.6
0.7
Io [A]
VCC=3.3V
FSW=250KHz
Vo=2.5V
Vo=1.8V
Vo=1.2V



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