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L5972D Scheda tecnica(PDF) 9 Page - STMicroelectronics

Il numero della parte L5972D
Spiegazioni elettronici  2A switch step down switching regulator
PDF  15 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L5972D Scheda tecnica(HTML) 9 Page - STMicroelectronics

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L5972D
Application circuit
9/15
Figure 13.
Junction temperature vs
output current
Figure 14.
Efficiency vs output current
Figure 15.
Junction temperature vs
output current
Figure 16.
Efficiency vs output current
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
Io(A)
TJ(°C)
Vin=5V
Tamb.=25 °C
Vo=1.8V
Vo=2.5V
Vo=3.3V
67
69
71
73
75
77
79
81
83
85
87
89
91
93
95
0.1
0.3
0.5
0.7
0.9
1.1
1.3
1.5
1.7
Io (A)
Vo=1.8V
Vo=2.5V
Vo=3.3V
Vin=5V
Vo=1.8V
Vo=2.5V
Vo=3.3V
20.0
30.0
40.0
50.0
60.0
70.0
80.0
90.0
100.0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
Io(A)
TJ(°C)
Vo=2.5V
Vo=3.3V
Vo=5V
Vin=12V
Tamb= 25°C
70
72
74
76
78
80
82
84
86
88
90
92
94
96
0.1
0.3
0.5
0.7
0.9
1.1
1.3
1.5
1.7
Io (A)
Vin=12V
Vo=2.5V
Vo=3.3V
Vo=5V
Vin=12V
Vo=2.5V
Vo=3.3V
Vo=5V



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