NCP140
www.onsemi.com
7
TYPICAL CHARACTERISTICS
Figure 21. Disable Current vs. Temperature Figure 22. Discharge Resistivity vs.
Temperature
T
J
, JUNCTION TEMPERATURE (°C) T
J
, JUNCTION TEMPERATURE (°C)
1201008060200−20−40
−100
−80
−40
−20
20
40
80
100
1201008060400−20−40
50
70
80
90
110
120
140
150
Figure 23. Output Voltage Noise Spectral Density − V
OUT
= 1.8 V
FREQUENCY (kHz)
1M100K10K1K10010
1
10
100
1K
10K
I
DIS
, DISABLE CURRENT (nA)
R
DIS
, DISCHARGE RESISTIVITY (W)
OUTPUT VOLTAGE NOISE (nV/√Hz)
−60
0
60
40 140
V
IN
= 4.3 V
V
OUT
= 3.3 V
C
IN
= 1 mF
C
OUT
= 1 mF
20 140
60
100
130
V
IN
= 4.3 V
V
OUT
= 3.3 V
C
IN
= 1 mF
C
OUT
= 1 mF
10 mA 26.21 17.94
150 mA 27.51 19.11
10 Hz − 100 kHz 100 Hz − 100 kHz
RMS Output Noise (mV)
I
OUT
V
IN
= 2.8 V
V
OUT
= 1.8 V
C
IN
= 1 mF
C
OUT
= 1 mF
I
OUT
= 150 mA
I
OUT
= 10 mA
Figure 24. PSRR for Various Output Currents,
V
OUT
= 1.8 V
Figure 25. PSRR for Various Output Currents,
V
OUT
= 3.3 V
FREQUENCY (kHz) FREQUENCY (kHz)
10M1M100K10K1K10010
0
20
30
40
60
70
80
10M1M100K10K1K10010
0
20
40
50
60
80
90
RR, RIPPLE REJECTION (dB)
RR, RIPPLE REJECTION (dB)
V
IN
= 2.3 V+100mVpp
V
OUT
= 1.8 V
C
IN
= none
C
OUT
= 1 mF MLCC 1206
I
OUT
= 1 mA
I
OUT
= 150 mA
I
OUT
= 10 mA
I
OUT
= 75 mA
I
OUT
= 1 mA
I
OUT
= 150 mA
I
OUT
= 75 mA
I
OUT
= 10 mA
50
10
V
IN
= 3.8 V+100mVpp
V
OUT
= 3.3 V
C
IN
= none
C
OUT
= 1 mF MLCC 1206
70
30
10
