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L5972 Datasheet(PDF) 7 Page - STMicroelectronics

Part # L5972
Description  2A SWITCH STEP DOWN SWITCHING REGULATOR
PDF  10 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L5972 Datasheet(HTML) 7 Page - STMicroelectronics

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L5972D
Figure 11. Junction Temperature vs. Output
Current
Figure 12. Junction Temperature vs. Output
Current
Figure 13. Efficiency vs. Output Current
Figure 14. 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
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
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
Vcc=5V
Vo=1.8V
Vo=2.5V
Vo=3.3V
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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