pq1cg1 ETC-unknow, pq1cg1 Datasheet - Page 4

• Manufacturer Part Number: pq1cg1
• Description: To-220 Type Chopper Regulator
• Manufacturer: ETC-unknow

Chopper Regulators
V
8 to 35V
V
IN
Fig.11 Operating Dissipation Current vs.
IN
1
Block Diagram
Step-down Output Type Circuit Diagram(5V Output)
10
9
8
7
6
5
Overcurrent
protection
Overheat
protection
0
Input Voltage
C
100 F
+
IN
1
PQ1CG1
10
Input voltage V
4
2
Io=0.2A
3
Io=1A
Voltage regulator
20
circuit
F/F
No load
D
PWM COMP.
COM
2
IN
Q
S
R
L
210 H
(V)
30
R
3k
T
Vo=5V
2
R
1k
1
+
–
j
=25˚C
C
470 F
40
+
O
V
O
=5V
Load
–
+
ERROR AMP.
V
5 to 30V
IN
V
ref
Inversion Output Type Circuit Diagram(-5V Output)
C
100 F
+
IN
1
PQ1CG1
3
4
2
4
V
O
OUT
ADJ
3
D
L
130 H
R
3k
R
1k
2
1
C
2200 F
+
O
PQ1CG1
V
O
=–5V
Load