mb3881pff Fujitsu Microelectronics, Inc., mb3881pff Datasheet - Page 31

• Manufacturer Part Number: mb3881pff
• Description: 8-ch Dc/dc Converter Ic With Synchronous Rectifier For Voltage Step-up And Step-down
• Manufacturer: Fujitsu Microelectronics, Inc.

• Enlarged view of A
12 k
20 k
20 k
16 k
R33
24 k
39 k
13 k
R46
24 k
39 k
13 k
R35
24 k
R17
R18
R19
R20
R21
R22
R23
R24
C
D
A
B
R34
47 k
R47
47 k
R36
47 k
0.1 F
0.1 F
0.1 F
0.1 F
C21
C22
C23
C24
1 k
R10
1 k
R11
1 k
R12
1 k
R9
DTC1
DTC2
DTC3
DTC4
FB1
FB2
FB3
FB4
IN1
IN2
IN3
IN4
47
46
48
44
43
45
41
40
42
38
37
39
CH1
CH2
CH3
CH4
58
50
49
52
51
53
54
56
57
55
VCC(O)-1
VSS(O)-1
VDD(O)
OUT1-1
OUT2-1
OUT3
OUT4
GND(O)-1
OUT1-2
OUT2-2
3900 pF
3900 pF
3900 pF
C14
C15
C16
R2
75
R3
75
R4
75
2200 pF
C13
R1
240
1 F
1 F
1 F
1 F
C33
C34
C35
C36
Q1
Q2
Q3
Q4
15 H
6.8 H
6.8 H
L2
Q9 D1
L4
L6
C8
C10
C9
Q10 D2
MB3881
A
2.2 F
2.2 F
33 H
2.2 F
2.2 F
L1
D3
D4
C1
B
C
D
2.2 F
2.2 F
2.2 F
15 H
15 H
15 H
(2.0 V)
L3
L5
L7
Vo1
C2
C3
C4
(5.0 V)
(2.8 V)
(5.0 V)
Vo4
Vo2
Vo3
31