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L4976 Arkusz danych(PDF) 11 Page - STMicroelectronics

Numer części L4976
Szczegółowy opis  1A step down switching regulator
PDF  17 Pages
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Producent  STMICROELECTRONICS [STMicroelectronics]
Strona internetowa  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L4976 Arkusz danych(HTML) 11 Page - STMicroelectronics

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L4976
Typical charcteristics
11/17
Figure 20. Power dissipation vs. VCC
Figure 21. Load transient
Figure 22. Line transient
Figure 23. Open loop frequency and
phase of error amplifier
0
1020304050
VCC(V)
0
200
400
600
800
Pdiss
(mW)
D97IN743
IO=1.5A
VO=5.1V
fsw=100KHz
IO=1A
IO=0.5A
2
1
D97IN786
VCC
(V)
30
20
10
VO
(mV)
100
0
-100
1ms/DIV
IO = 1A
fsw = 100KHz
10
103
105
107
f(Hz)
102
104
106
108
-200
-150
-100
-50
GAIN
(dB)
0
50
Phase
0
45
90
135
D97IN787
GAIN
Phase



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