NCP1117, NCV1117
100
80
100
V
v 3.0 V
V
v 0.5 V
ripple
P−P
ripple P−P
f
V
= 120 Hz
ripple
V
− V w 3.0 V
out
v 3.0 V
in
ripple
P−P
80
60
40
20
0
60
f
= 20 kHz
ripple
V
V
I
C
C
= 5.0 V
out
V
v 0.5 V
ripple
P−P
− V = 3.0 V
in
out
= 0.5 A
= 10 mF
V
− V w V
out dropout
in
40
out
V
= 5.0 V
− V = 3.0 V
out
= 10 mF
= 25 mF
out
out
adj
V
in
= 25 mF, f > 60 Hz
C
C
out
20
0
C
= 200 mF, f v 60 Hz
adj
adj
T = 25°C
A
T = 25°C
A
0
200
400
600
800
1000
10
100
1.0 k
10 k
100 k
I
, OUTPUT CURRENT (mA)
f
ripple
, RIPPLE FREQUENCY (Hz)
out
Figure 10. NCP1117XTA Ripple Rejection
vs. Output Current
Figure 11. NCP1117XTA Ripple Rejection
vs. Frequency
C
C
= 1.0 mF
in
0.1
0
= 10 mF
out
I
= 0.1 A
out
5.25
4.25
T = 25°C
A
C
C
= 10 mF
−0.1
in
= 10 mF
out
V
in
= 4.5 V
Preload = 0.1 A
20
0
T = 25°C
A
0.5
0
−20
0
40
80
120
160
200
0
40
80
120
160
200
t, TIME (ms)
t, TIME (ms)
Figure 12. NCP1117XT285
Line Transient Response
Figure 13. NCP1117XT285
Load Transient Response
C
C
= 1.0 mF
in
0.1
0
= 10 mF
out
I
= 0.1 A
out
7.5
6.5
T = 25°C
A
C
C
= 10 mF
in
−0.1
= 10 mF
out
V
in
= 6.5 V
Preload = 0.1 A
20
T = 25°C
A
0.5
0
0
−20
0
40
80
120
160
200
0
40
80
120
160
200
t, TIME (ms)
t, TIME (ms)
Figure 14. NCP1117XT50
Line Transient Response
Figure 15. NCP1117XT50
Load Transient Response
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