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MB3775(1994) 데이터 시트보기 (PDF) - Fujitsu
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MB3775
(Rev.:1994)
Switching Regulator Controller
Fujitsu
MB3775 Datasheet PDF : 29 Pages
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MB3817
s
BLOCK DIAGRAM
FB
5
−
IN
4
+
IN
3
DTC
6
CS
13
Error
−
Amp.
+
PWM
Comp.
CS
1
µ
Q1
Soft Start
−
Comp.
+
SCP
−
Comp.
+
OUT
CB1
7
8
CB2
OFF current
setting
block
9
V
CC
Q4
10
OUT
Q6
D1
11
Q5
(0.5 V)
VE
(0.9 V)
1.5 V
SCP
OSC
−
1.4 V
−
1.0 V
bias
RS
Latch
UVLO
1
µ
bias
V
CC
Q2 Q3 Ref Power 15
(1.5 V) ON
/
OFF
CTL
12
CT RT
14 16
12
CSCP V
REF
GND
4
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