PQ2CF1 Sharp Microelectronics, PQ2CF1 Datasheet - Page 4

• Manufacturer Part Number: PQ2CF1
• Description: IC REG CHOPPER ADJ 2.5A TO-220
• Manufacturer: Sharp Microelectronics
• Type: Step-UP (Boost), Flybackr

Specifications of PQ2CF1

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 4.5 ~ 35 V
• Current - Output: 2.5A
• Frequency - Switching: 50kHz
• Voltage - Input: 3.5 ~ 10 V
• Operating Temperature: -20°C ~ 80°C
• Mounting Type: Through Hole
• Package / Case: TO-220
• Power - Output: 15W
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 425-1770-5

264
Chopper Regulators
V
5V
V
IN
IN
Fig. 9 Threshold Voltage vs. Junction
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
ON/OFF control
1
0
Step - Up Type Circuit Diagram (12V Output)
Flyback Method Circuit Diagram
–25
Temperature
0.47 F
+
+
C
100 F
C
100 F
IN
0
Junction temperature T
IN
0.47 F
1k
25
4
1k
2
50
3
4
V
2
L
90 H
V
TH(ON)
1
75
5
3
THL
1
100 125 150
5
j
R
8.56k
(˚C)
2
D
R
1k
D
R
1k
1
1
R
2
+
+
C
470 F
C
470 F
O
O
I
I
O
O
V
V
O
O
12V
PQ2CF1