L5971 查看數據表（PDF） - STMicroelectronics
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L5971 Datasheet PDF : 11 Pages
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L5971
Figure 15. Load transient.
Figure 16. Soft start capacitor selection vs. In-
ductor and Vccmax
L
(µH)
fsw=100KHz
D98IN952
160
120
80
40
0
20
680nF
22 24 26
470nF
330nF
220nF
100nF
28VCCmax(V)
Figure 17. Soft start capacitor selection vs. In-
ductor and Vccmax
L
D98IN953
(µH)
fsw=200KHz
150
100
56nF
47nF
50
33nF
22nF
0
20
22
24
26
28 VCCmax(V)
Figure 18. Open loop frequency and phase of
error amplifier.
GAIN
(dB)
D97IN787
Phase
50
GAIN
0
0
-50
45
-100
-150
Phase
90
135
-200
10 102 103 104 105 106 107 108 f(Hz)
8/11
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