ncp3121 ON Semiconductor, ncp3121 Datasheet - Page 10

• Manufacturer Part Number: ncp3121
• Description: Dual 3.0 A, Step-down Dc/dc Switching Regulator
• Manufacturer: ON Semiconductor

0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
3.40
3.38
3.36
3.34
3.32
3.30
3.28
3.26
3.24
3.22
3.20
12
10
0
8
6
4
2
0
-50
0
5
Figure 19. Power Good Saturation Voltage vs.
0.5
-25
Figure 23. NCP3121 Line Regulation
Figure 21. Power Good Current vs.
1.0
7
Drain-to-Source Voltage
0
1.5
TEMPERATURE (°C)
Temperature
2.0
I
9
out
25
Vds (V)
Vin (V)
= 50 mA
2.5
50
TYPICAL OPERATING CHARACTERISTICS
3.0
11
3.5
75
4.0
13
100
http://onsemi.com
4.5
NCP3121
125
5.0
15
10
3.318
3.315
3.312
3.309
3.306
3.303
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
3.3
20
19
18
17
16
15
14
13
12
10
11
-50
-50
0
Figure 22. SEQ Internal Pull-down Current vs.
Figure 20. EN Internal Pull-up Current vs.
-25
-25
Figure 24. NCP3121 Load Regulation
0.5
0
0
1.0
TEMPERATURE (°C)
TEMPERATURE (°C)
Temperature
Temperature
25
25
V
V
in
Iout (A)
in
= 12 V
1.5
= 5 V
50
50
2.0
75
75
2.5
100
100
125
125
3.0