NCV8614 Datasheet, PDF (20/25 Pages) ON Semiconductor – Ultra-Low Iq Automotive System Power Supply IC Power Saving Triple-Output Linear Regulator

NCV8614
100
100
V_IN = 18 V
Stable Region
V_OUT1 = 5 V
10
C_OUT1 = 1 mF
10
1
1
0.1
Unstable Region
0.1
Unstable Region
Stable Region
V_IN = 18 V
V_OUT1 = 5 V
C_OUT1 = 47 mF
0.01
0.01
Unexplored Region*
Unexplored Region*
0.001
0.001
0
20
40
60
80
100
0
20
40
60
80
100
I_OUT1, OUTPUT CURRENT (mA)
I_OUT1, OUTPUT CURRENT (mA)
Figure 22. C_OUT1 ESR Stability Region − 1 mF
Figure 23. C_OUT1 ESR Stability Region − 47 mF
*The min specified ESR is based on Murata’s capacitor GRM31CR60J476ME19 used in measurement. The true min ESR limit might be
lower than shown.
100
100
10
Stable Region
V_IN = 18 V
V_OUT2 = 3.3 V
C_OUT2 = 1 mF
10
Unstable Region
1
0.1
Unstable Region
1
V_IN = 18 V
Stable Region
V_OUT2 = 3.3 V
0.1
C_OUT2 = 47 mF
0.01
0.01
0.001
0
50
100
150
200
250
I_OUT2, OUTPUT CURRENT (mA)
0.001
300
0
Unexplored Region*
50
100
150
200
250
300
I_OUT2, OUTPUT CURRENT (mA)
Figure 24. C_OUT2 ESR Stability Region − 1 mF
Figure 25. C_OUT2 ESR Stability Region − 47 mF
*The min specified ESR is based on Murata’s capacitor GRM31CR60J476ME19 used in measurement. The true min ESR limit might be
lower than shown.
100
10
1
0.1
0.01
Stable Region
V_IN = 18 V
V_OUT3 = 1.0 V
C_OUT3 = 1 mF
Unstable Region
1000
100
Unstable Region
10
1
Stable Region
V_IN = 18 V
V_OUT3 = 1.0 V
C_OUT3 = 47 mF
0.1
0.01
Unstable Region
0.001
0
50 100 150 200 250 300 350 400
I_OUT3, OUTPUT CURRENT (mA)
Figure 26. C_OUT3 ESR Stability Region − 1 mF
0.001
0
50 100 150 200 250 300 350 400
I_OUT3, OUTPUT CURRENT (mA)
Figure 27. C_OUT3 ESR Stability Region − 47 mF
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