L4973 Ver la hoja de datos (PDF) - STMicroelectronics
Número de pieza
componentes Descripción
Fabricante
L4973 Datasheet PDF : 27 Pages
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Typical characteristics
L4973
Figure 19. Load regulation (see Figure 4) Figure 20. Switching frequency vs.
R2 and C7 (Figure 4)
VO
(V)
3.35
3.34
3.33
3.32
3.31
3.3
0
VCC = 35V
D97IN661
Tj=125˚C
Tj=25˚C
1
2
3
IO(A)
fsw
(KHz)
500
200
100
50
20
10
5
0
D97IN630
Tamb=25˚C
0.82nF
1.2nF
2.2nF
3.3nF
4.7nF
5.6nF
20
40
60
80 R2(KΩ)
Figure 21. Switching frequency vs.
input voltage
fsw
(KHz)
105
Tamb=25˚C
D97IN631
Figure 22. Switching frequency vs.
junction temperature
(see Figure 4)
fsw
(KHz)
D97IN632
105
100
100
95
95
90
0
10 20 30 40 50 VCC(V)
90
-50
0
50
100 Tj(˚C)
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