MB3881 Datasheet, PDF (32/40 Pages) Fujitsu Component Limited. – 8-ch DC/DC Converter IC with Synchronous Rectifier for Voltage Step-up and Step-down

MB3881
• Enlarged view of B
Vin
(3.6 V)
FB5
20
E _C25
0.1 µF
R25 R13
5.1 1 kΩ
kΩ
21
−IN5
R26
20 kΩ
−IN5(C) ₂₃
Motor control
signal
22
+IN5
DTC5 ₁₉
FB6
14
F _C26
0.1 µF
R27 R14
15
kΩ
1 kΩ
15
−IN6
R28
20 kΩ
−IN6(C) ₁₇
Motor control
signal
16
+IN6
R43 24 kΩ OVP
18
Overvoltage
threshold
R44
47 kΩ
setting
voltage
DTC6 ₁₃
G
R29
75 kΩ
R30
15 kΩ
FB7
10
C27
0.1 µF
R15
1 kΩ
11
−IN7
+IN7
12
Back light
luminousity
switching signal
R37 24 kΩ DTC7
9
R38
47 kΩ
32
CH5
CH6
CH7
59 _VCC(O)-2
R5
3 kΩ
OUT5
60
C17
470 pF
63
VSS(O)-2
Q5
C37
1 µF
Vo5
E ^(DRUM)
L8
33 µH
C5
D5 ^{2.2 µF}
R6
1 kΩ
OUT6
61
C18
680 pF
Q6
C38
1 µF
Vo6
F
(CAP)
L9
33 µH
C6
D6 ^{2.2 µF}
R7
100 Ω
OUT7
62
C19
2200 pF
Vo7
G
(B.L)
Q7
C11 2.2 µF L11
15 µH
L10
C39 ^{15 µH}
1 µF
C7
D7 ^{2.2 µF}