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L7980ATR Scheda tecnica(PDF) 33 Page - STMicroelectronics

Il numero della parte L7980ATR
Spiegazioni elettronici  2 A step-down switching regulator
PDF  44 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L7980ATR Scheda tecnica(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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