L4973D5 Ver la hoja de datos (PDF) - STMicroelectronics
Número de pieza
componentes Descripción
Fabricante
L4973D5 Datasheet PDF : 16 Pages
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Figure 10: Load Regulation (see fig. 1c)
VO
D97IN640
(V)
5.15
VCC = 35V
Tj=125°C
5.1
Tj=25°C
5.05
5.0
0
1
2
3
IO(A)
L4973V3 - L4973V5 - L4973D3 - L4973D5
Figure 11: Line Regulation (see fig. 1d)
VO
(V)
3.35
D97IN660A
3.34
3.33
Tj=125°C
Tj=25°C
3.32
3.31
IO = 1A
3.3
0
10 20 30 40 50 VCC(V)
Figure 12: Load Regulation (see fig. 1d)
VO
(V)
3.35
VCC = 35V
D97IN661
3.34
3.33
3.32
Tj=125°C
Tj=25°C
3.31
3.3
0
1
2
3
IO(A)
Figure 14: Switching Frequency vs. Input Voltage
fsw
(KHz)
105
Tamb=25°C
D97IN631
Figure 13: Switching Frequency vs.R2 and C7
(fig. 1)
fsw
(KHz)
D97IN630
500
Tamb=25°C
200
100
50
20
10
0.82nF
1.2nF
2.2nF
3.3nF
4.7nF
5.6nF
5
0
20
40
60
80 R2(KΩ)
Figure 15: Switching Frequency vs. Junction
temperature (see fig. 1)
fsw
(KHz)
D97IN632
105
100
100
95
95
90
0
10 20 30 40 50 VCC(V)
90
-50
0
50
100
Tj(°C)
9/16
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