L4973 Ver la hoja de datos (PDF) - STMicroelectronics
Número de pieza
componentes Descripción
Fabricante
L4973 Datasheet PDF : 27 Pages
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L4973
Typical characteristics
Figure 39. Soft start capacitor selection Figure 40. Open loop frequency and
vs. inductor and VCC max (ref.
AN938)
phase of error amplifier
Lomax
(µH)
150
fsw = 200KHz
D97IN654
100
50
Css=33nF
Css=22nF
0
15 20 25 30 35 40 45 50 Vi(V)
GAIN
(dB)
D97IN663
Phase
50
GAIN
0
0
-50
45
-100
-150
Phase
90
135
-200
10 102 103 104 105 106 107 108 f(Hz)
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