MB3881 Datasheet, PDF (33/40 Pages) Fujitsu Component Limited. – 8-ch DC/DC Converter IC with Synchronous Rectifier for Voltage Step-up and Step-down

MB3881
• Enlarged view of C
H
FB8
C28
4
R31
130 kΩ
0.1 µF
R16
1 kΩ
5
−IN8
R32
10 kΩ
R39
30 kΩ
R40
10 kΩ
+IN8
6
C46
1 µF
7
R48
−IN8(C)
68 kΩ
8
R49 ^+IN8(C)
10 kΩ
R41 DTC8
3
36 kΩ _R42
20 kΩ
CH8
CTL-2 ²⁹
CTL-3 30
CTL-4 31
C30
0.1 µF
CS
32
VB ₃₆
C32
0.1 µF
35 33 34
Synchronous signal SYNC RT
3V∼5V
R45
12 kΩ
0V
CT _C31
100 pF
VSS(0)
(1.8 V)
VCC(0)
(5.8 V)
OUT8
64
C20
100 pF
2
RB8
R8
12 kΩ
C40
1 µF
D8
C41
1 µF
D9
Q8
H
T1
D10
C42
1 µF
Vo8-1
(15 V)
<CCD>
Vo8-2
(7 V)
D11 C43 <LCD>
D12 1 µF Vo8-3
(−7 V)
C44
<CCD>
1 µF
Vo8-4
D13
C45
1 µF
(−15 V)
<LCD>
GND(O)-2
1
VCC
27
28 CTL-1 H : ON (Power/CH1, 3, 4, 8)
L : OFF ( Standby mode )
(64 pin)
26
24 25
CSCP VREF GND
C29
0.1 µF
33