STK740-441 Sanyo Semicon Device, STK740-441 Datasheet - Page 3

• Manufacturer Part Number: STK740-441
• Description: 3.3V/5A Single Output Separate Excitation Chopper Regulator
• Manufacturer: Sanyo Semicon Device

Block Diagram
Pin Descriptions
V
GND
V
CC
IN
Number
11, 12
9, 10
7, 8
1
2
3
4
5
6
12
11
6
5
SUB
Reference voltage
Oscillator
Pin name
ON/OFF
V ADJ
GND
V CC
OUT
V IN
F B
V S
A
Low-voltage
malfunction
prevention circuit
Drive circuit
Remote on/off switching
Output voltage sensing
Output voltage fine adjustment
Feedback (error amplifier output), phase compensation
Ground
Power supply for control block
Flywheel diode anode
Output
Input supply voltage
STK740-441
PWM
TR1
Description
Snubber circuit
On/off circuit
Soft start circuit
Short protection circuit
Error amplifier
Phase
compensation
D1
10
9
8
3
4
7
2
1
OUT
F
A
V
V
ON/OFF
B
S
ADJ
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