NCP3101CMNTXG Datasheet, PDF (7/26 Pages) ON Semiconductor – Wide Input Voltage Synchronous Buck Converter

NCP3101C
TYPICAL OPERATING CHARACTERISTICS
10
9
8
7
6
5
4
3
2
1
0
−40
V_in = 12 V
V_in = 5 V
−20 0 20 40 60 80 100 120
T_J, JUNCTION TEMPERATURE (°C)
Figure 11. I_CC vs. Temperature
35
30
25
V_in = 5 V
20
15
V_in = 12 V
10
5
0
−40 −20 0
20 40 60 80 100 120
T_J, JUNCTION TEMPERATURE (°C)
Figure 12. Low−Side R_DS(on) vs. Temperature
3.60
3.55
3.50
3.45
V_CC = 5 V
3.40
3.35
3.30
V_CC = 12 V
3.25
3.20
−40 −20 0
20 40 60 80 100 120
T_J, JUNCTION TEMPERATURE (°C)
Figure 13. Transconductance vs. Temperature
88
87
86
5V
12 V
85
84
83
−40 −20 0
20 40 60 80 100 120
JUNCTION TEMPERATURE (°C)
Figure 15. Controller Current vs. Input Voltage
13
12
11
10
I_CC Low Duty Ratio
9
I_CC High
8
Duty Ratio
7
6
5
4 5 6 7 8 9 10 11 12 13
V_IN, INPUT VOLTAGE (V)
Figure 14. Maximum Duty Cycle vs. Input
Voltage
799.0
798.8
798.6
798.4
798.2
798.0
4 5 6 7 8 9 10 11 12 13
V_IN, INPUT VOLTAGE (V)
Figure 16. Reference Voltage vs. Input Voltage
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