NCP3125 ON Semiconductor, NCP3125 Datasheet - Page 6

• Manufacturer Part Number: NCP3125
• Description: 4 A Synchronous PWM Switching Converter
• Manufacturer: ON Semiconductor

100
4.5
3.5
2.5
1.5
0.5
95
90
85
80
75
70
65
60
55
50
4
3
2
1
0
0
25
Figure 11. Efficiency (V
Figure 13. Derating Curve 5 V/6 V Input
0.5
5.0 V Output
35
3.3 V
T
1
A
, AMBIENT TEMPERATURE
LOAD CURRENT (A)
45
2.5 V
1.5
1.8 V
Current
1.8 V
2
55
1.2 V
75.5
74.5
73.5
IN
1.5 V
Figure 10. Duty Cycle Maximum vs. Temperature
76
75
74
73
= 12 V) vs. Load
2.5
0
65
1.2 V
TYPICAL CHARACTERISTICS
3
1.1 V
10
5.0 V
T
75
V
3.3 V
V
J
3.5
CC
, JUNCTION TEMPERATURE (°C)
CC
1.0 V
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20
= 12 V
= 5 V
4
85
30
6
100
40
4.5
3.5
2.5
1.5
0.5
95
90
85
80
75
70
65
60
55
50
4
3
2
1
0
25
0
3.3 V
50
Figure 12. Efficiency (V
0.5
Figure 14. Derating Curve 12 V Input
35
60
T
1
A
1.8 V
2.5 V Output
, AMBIENT TEMPERATURE
1.8 V
LOAD CURRENT (A)
45
70
1.5
Current
1.2 V
1.5 V
55
2
IN
2.5
= 5 V) vs. Load
1.2 V
65
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1.1 V
3
75
1.0 V
3.5
85
4