전자부품 반도체 검색엔진( 무료 PDF 다운로드 ) - 데이터시트뱅크
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MB3782 데이터 시트보기 (PDF) - Fujitsu
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MB3782
Switching Regulator Controller
Fujitsu
MB3782 Datasheet PDF : 27 Pages
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MB3782
s
BLOCK DIAGRAM
R
T
C
T
3
2
1.25 V
V
REF
1
2.5 V
V
CC
CLT
20
19
Triangular wave
oscillator
+ IN1
4
– IN1
5
FB1
6
DTC1
7
– IN2
13
FB2
12
DTC2
11
– IN3
18
FB3
17
DTC3
16
Error Amp.1
+
–
Error Amp.2
–
+
1.25 V
Error Amp.3
–
+
1.25 V
Reference
voltage
source
PWM Comp.
+
+
–
Power on/off
control
circuit
Ch.1
PWM Comp.
+
+
–
Ch.2
PWM Comp.
+
+
–
Ch.3
SCP Comp.
–
–
–
+
SCP
14
2.1 V
1
µ
A
V
REF
S
R
Latch
U.V.L.O.
9
GND
8
OUT1
10
OUT2
15
OUT3
4
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