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L4973 データシート(PDF) 15 Page - STMicroelectronics

部品番号 L4973
部品情報  3.5A step down switching regulator
PDF  27 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L4973 データシート(HTML) 15 Page - STMicroelectronics

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L4973
Typical characteristics
15/27
Figure 23. Dropout voltage between pin
7,8 and 2,3
Figure 24. Efficiency vs. output voltage
(see Figure 6)
Figure 25. Dropout voltage between pin
7,8 and 2,3
Figure 26. Efficiency vs. output voltage
(see Figure 4)
0123
IO(A)
0
0.2
0.4
0.6
∆V
(V)
D97IN643
Tj=0˚C
Tj=125˚C
Tj=25˚C
010
20
30
VO(V)
40
86
88
90
92
η
(%)
94
96
98
D97IN641
200KHz
100KHz
IO = 3A
VCC = 50V
0123
IO(A)
0
0.2
0.4
0.6
∆V
(V)
D97IN643
Tj=0˚C
Tj=125˚C
Tj=25˚C
010
20
30
VO(V)
40
86
88
90
92
η
(%)
94
96
98
D97IN641
200KHz
100KHz
IO = 3A
VCC = 50V



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