MB3886 Fujitsu Microelectronics, Inc., MB3886 Datasheet - Page 16

• Manufacturer Part Number: MB3886
• Description: 2-channel Dc/dc Converter Ic With Overcurrent Protection Symmetrical-phase Type
• Manufacturer: Fujitsu Microelectronics, Inc.

16
MB3886
TREATMENT OF UNUSED CS PINS
When the soft-start function is not used, the CS1 terminal (pin 7) and CS2 terminal (pin 22) should be left open.
(Cs
Cs
( INE2)
(CTL2)
CS1
1
2
(CS2)
(FB2)
CTL1
)
INE1
"Open"
FB1
22
23
24
29
9
8
7
2
< Operation Without Soft-Start Setting >
7
10 F
CS1
VREF
< Soft-start circuit >
VREF
(SW2)
SW1
A
B
Rs
10 F
CS2
3.8 k
24
1.25 V
"Open"
Error
Amp.