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MB3778 데이터 시트보기 (PDF) - Fujitsu
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MB3778
Switching Regulator Controller
Fujitsu
MB3778 Datasheet PDF : 31 Pages
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MB3778
■
BLOCK DIAGRAM
2.46 V
16
Reference
Voltage
2.46 V
Error Amp 1
3
+
4
−
5
12
Error Amp 2
13
−
+
1.23 V
15
9
14
Power
Supply
Control
1.9 V
1.3 V
S.C.P. Comp.
−
+−
2.1 V
2.46 V
1
µ
A
RS
Latch
R
U. V. L. O.
1
2
1.23 V
Triangular
Oscillator
OUT1
7
−++
PWM Comp.1
−+
OUT2
+
10
PWM Comp.2
D.T.C. Comp.
8
1.1 V
6 11
4
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