L4973 STMicroelectronics, L4973 Datasheet - Page 15

• Manufacturer Part Number: L4973
• Description: 3.5A STEP DOWN SWITCHING REGULATOR
• Manufacturer: STMicroelectronics

L4973
Figure 23. Dropout voltage between pin
Figure 25. Dropout voltage between pin
(V)
0.6
0.4
0.2
(V)
0.6
0.4
0.2
∆V
∆V
0
0
0
0
7,8 and 2,3
7,8 and 2,3
1
1
2
2
Tj=125˚C
Tj=125˚C
Tj=0˚C
Tj=0˚C
3
3
D97IN643
D97IN643
I
I
O
O
(A)
(A)
Figure 24. Efficiency vs. output voltage
Figure 26. Efficiency vs. output voltage
(%)
(%)
98
96
94
92
90
88
86
98
96
94
92
90
88
86
η
η
0
0
(see
(see
10
10
Figure
Figure
200KHz
200KHz
100KHz
100KHz
20
20
Typical characteristics
6)
4)
30
30
I
V
I
V
O
O
CC
CC
= 3A
= 3A
= 50V
= 50V
D97IN641
D97IN641
40
40
V
V
O
O
(V)
(V)
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