L4976 데이터 시트보기 (PDF) - STMicroelectronics
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L4976 Datasheet PDF : 17 Pages
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L4976
Typical charcteristics
Figure 20. Power dissipation vs. VCC
Pdiss
(mW)
800
D97IN743
VO=5.1V
fsw=100KHz
Figure 21. Load transient
600
IO=1.5A
IO=1A
400
IO=0.5A
200
0
0
10 20 30 40 50 VCC(V)
Figure 22. Line transient
Figure 23. Open loop frequency and
phase of error amplifier
VCC
(V)
30
20
10
1
2
1ms/DIV
D97IN786
GAIN
(dB)
D97IN787
Phase
IO = 1A
fsw = 100KHz
50
GAIN
0
0
VO -50
45
(mV)
100 -100
90
0
-100
-150
Phase
135
-200
10 102 103 104 105 106 107 108 f(Hz)
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