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