MB39A105

I/O EQUIVALENT CIRCUIT

〈〈Soft-start block (CS) 〉〉

〈〈Short-circuit protection circuit block (SCP) 〉〉

VCC 3

ESD protection element

GND 6

ESD

protection

element

2 CSCP

ESD

protection

element

VCC

 

 

 

 

CSCP

 

+

4

SCPOD

 

1.0 V

 

 

 

 

 

 

 

GND

 

 

 

 

〈〈Triangular wave oscillator block (RT) 〉〉

VCC

 

 

0.33 V

+

 

 

 

 

7

RT

GND

 

 

〈〈Error amplifier block〉〉

VCC

 

 

 

 

(1.27 V)

 

 

 

 

INE

1

CS

 

 

 

 

0.5 V

8

FB

GND

 

 

 

 

〈〈Output block〉〉

VCC

5 OUT

GND

16

Page 16
Image 16
Fujitsu MB39A105 manual Equivalent Circuit