NCP1117DT25G(2014) View Datasheet(PDF) - ON Semiconductor
Part Name
Description
Manufacturer
NCP1117DT25G
(Rev.:2014)
(Rev.:2014)
ON Semiconductor
NCP1117DT25G Datasheet PDF : 17 Pages
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NCP1117, NCV1117
100
100
fripple = 120 Hz
Vripple v 3.0 VP−P Vripple v 0.5 VP−P
80
Vripple v 3.0 VP−P
80
Vin − Vout w 3.0 V
60
40 Vout = 5.0 V
Vin − Vout = 3.0 V
20
Cout = 10 mF
Cadj = 25 mF
TA = 25°C
0
0
200
400
fripple = 20 kHz
Vripple v 0.5 VP−P
600
800
1000
Iout, OUTPUT CURRENT (mA)
Figure 10. NCP1117XTA Ripple Rejection
vs. Output Current
60
Vout = 5.0 V
Vin − Vout = 3.0 V
40 Iout = 0.5 A
Cout = 10 mF
Cadj = 25 mF, f > 60 Hz
20 Cadj = 200 mF, f v 60 Hz
TA = 25°C
Vin − Vout w Vdropout
0
10
100
1.0 k
10 k
100 k
fripple, RIPPLE FREQUENCY (Hz)
Figure 11. NCP1117XTA Ripple Rejection
vs. Frequency
100
10
Region of Stability
Vin = 3.0 V
Vout = 1.25 V
Vin = 3.0 V
Vout = 1.25 V
Iload = 5 mA − 1 A
Cin = 10 mF MLCC
10
Cin = 10 mF MLCC
TJ = 25°C
1
Region of Stability
Cout = 10 mF
TJ = 25°C
Region of Instability
1
0.1
0.1
0.001
0.01
0.1
1
10
ESR, EQUIVALENT SERIES RESISTANCE (W)
Figure 12. Output Capacitance vs. ESR
Region of Instability
0.01
0 100 200 300 400 500 600 700 800 900 1000
Iout, OUTPUT CURRENT (mA)
Figure 13. Typical ESR vs. Output Current
350E−9
300E−9
250E−9
1A
0.5 A
Cin = 10 mF Tantalum
Cout = 10 mF Tantalum
Vin − Vout = 3.0 V
200E−9
0.1 A
150E−9
100E−9
50E−9
0
10
100
1.0 k
10 k
100 k
FREQUENCY (Hz)
Figure 14. Output Spectral Noise Density vs.
Frequency, Vout = 1V5
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