Datasheet

LM2931, NCV2931 Series
http://onsemi.com
7
I
B
, BIAS CURRENT (mA)
I
B
, BIAS CURRENT (mA)
I
B
V
in
, INPUT VOLTAGE (V)
0
2.0
4.0
6.0
8.0
10
12
-20 -10 0 10 20 30 40 50 60
R
L
= 50 W
, BIAS CURRENT (mA)
T
J
, JUNCTION TEMPERATURE (°C)
-55 -25 0 25 50 75 100 125
0
2.0
4.0
6.0
8.0
I
O
= 100 mA
RR, RIPPLE REJECTION RATIO (dB)
f, FREQUENCY (Hz)
55
65
75
85
95
10 100 1.0 k 1.0 M 10 M
C
O(ESR)
= 0.15 W
Tantulum
RR, RIPPLE REJECTION RATIO (dB)
85
95
0 20 40 60 80 100
I
O
, OUTPUT CURRENT (mA)
Ω
f, FREQUENCY (Hz)
, OUTPUT IMPEDANCE (  )
O
0
0.4
0.8
1.2
1.6
2.0
10 100 1.0 k 10 k 100 k 1.0 M 10 M
I
C
O(ESR)
= 0.3 W
Electrolytic
C
O(ESR)
= 0.15 W
Tantulum
0
2.0
4.0
6.0
8.0
0 20 40 60 80 100
I
O
, OUTPUT CURRENT (mA)
I
O
= 0 mA
I
O
= 50 mA
V
out
= 5.0 V
T
J
= 25°C
V
in
= 14 V
V
out
= 5.0 V
I
O
= 10 mA
DI
O
= 1.0 mA
C
O
= 100 mF
T
J
= 25°C
V
in
= 14 V
V
out
= 5.0 V
65
75
V
in
= 14 V
V
out
= 5.0 V
f = 120 Hz
T
J
= 25°C
V
in
= 14 V
V
out
= 5.0 V
DV
in
= 100 mV
R
L
= 500 W
C
O
= 100 mF
T
J
= 25°C
C
O(ESR)
= 0.3 W
Electrolytic
10 k 100 k
Figure 7. Bias Current versus Input Voltage
Figure 8. Bias Current versus Output Current
Figure 9. Bias Current versus Junction Temperature Figure 10. Output Impedance versus Frequency
Figure 11. Ripple Rejection versus Frequency Figure 12. Ripple Rejection versus Output Current
R
L
= 100 W
R
L
= 500 W
V
in
= 14 V
V
out
= 5.0 V
T
J
= 25°C