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L7980ATR 数据表(PDF) 33 Page - STMicroelectronics

部件名 L7980ATR
功能描述  2 A step-down switching regulator
PDF  44 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L7980ATR 数据表(HTML) 33 Page - STMicroelectronics

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L7980
Application informations
Doc ID 15181 Rev 4
33/44
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
72
77
82
87
92
0.0
0.5
1.0
1.5
2.0
Io [A]
VOUT=5.0 V
fsw=250 kHz
VIN=18V
VIN=12V
VIN=24V
65
70
75
80
85
90
95
0.0
0.5
1.0
1.5
2.0
Io [A]
VOUT=3.3 V
fsw=250 kHz
VIN=5V
VIN=12V
VIN=24V
50
55
60
65
70
75
80
85
0.00.5
1.01.5
2.0
Io [A]
VOUT=1.8 V
fsw=250 kHz
VIN=5V
VIN=12V
VIN=24V



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