mb3881pff Fujitsu Microelectronics, Inc., mb3881pff Datasheet - Page 23

• 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.

• CH7
• CH8
V
R1
R2
O
VB
2 V
V
Ra
R1
R2
O
FB7
Rb
IN7
IN7
11
10
12
80 k
20 k
IN8(C)
IN8(C)
FB8
IN8
IN8
4
5
7
8
6
1.25 V
1.0 V
Error
Amp.7
SCP
Comp.7
Error
Amp.8
SCP
Comp.8
V
•
V
•
O
O
IN7< 1.25 V
IN7
V
O
1.25 V
R2
R2
IN7
2Rb (R1
(Ra
1.25 V
(R1
(R1
Rb) R2
R2)
R2)
R2)
MB3881
23