MB3886 데이터 시트보기 (PDF) - Fujitsu

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MB3886

2-Channel DC/DC Converter IC with Overcurrent Protection Symmetrical-Phase Type

Fujitsu 

MB3886

(FB2) 22

FB1 9

(−INE2) 23

−INE1 8

(CS2) 24

7

CS1

Cs1

(Cs2)

(CTL2) 29

CTL1 2

VREF

10 µF

VREF

Error

− Amp.

+

+

1.25 V

10 µF

SW1 A

(SW2)

B

Rs = 3.8 kΩ

< Soft-start circuit >

s 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.

"Open"

7 CS1

CS2 24

"Open"

< Operation Without Soft-Start Setting >

16

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