E-L4973V5.1 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
E-L4973V5.1 Datasheet PDF : 27 Pages
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Typical characteristics
L4973
Figure 27. Efficiency vs. output voltage Figure 28. Efficiency vs. output current (
(Diode STPS745D)
see Figure 7)
η
(%)
98
96
94
92
90
88
86
0
100KHz
200KHz
D97IN642
IO = 3A
VCC = 35V
5 10 15 20 25 30 VO(V)
η
(%)
95
90
85
D97IN645
Vcc=12V
VO = 5.1V
fsw = 100KHz
Vcc=24V
Vcc=48V
80
0
1
2
3
IO(A)
Figure 29. Efficiency vs. output current Figure 30. Efficiency vs. output current
(see Figure 7)
(see Figure 8)
η
D97IN646
η
(%)
(%)
Vcc=12V
90
90
Vcc=24V
D97IN644
Vcc=12V
VO = 3.3V
fsw = 100KHz
85
80
75
0
Vcc=48V
VO = 5.1V
fsw = 200KHz
1
2
3
IO(A)
85
80
75
0
Vcc=24V
Vcc=48V
1
2
3
IO(A)
16/27
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