LM2931 Series
Figure 2. Dropout Voltage versus
Junction Temperature
Figure 1. Dropout Voltage versus Output Current
300
200
100
0
200
160
120
80
V
∆
= 14 V
in
V
∆
= 14 V
in
V
= 100 mV
out
V
= 100 mV
out
I
= 100 mA
O
T
= 25°C
J
I
= 50 mA
O
40
I
= 10 mA
O
0
0
25
50
75
100
125
0
20
40
60
80
100
I
, OUTPUT CURRENT (mA)
T , JUNCTION TEMPERATURE (
°C)
O
J
Figure 3. Peak Output Current versus Input Voltage
Figure 4. Output Voltage versus Input Voltage
6.0
350
250
150
50
5.0
4.0
3.0
2.0
V
= 5.0 V
out
= 25°C
T
= –40°C
J
T
A
T
= 25°C
J
T
= 85°C
J
Dashed lines below V = 5.0 V
in
R
= 50
Ω
I
= 100 mA
3.0
L
O
1.0
0
are for Adjustable output devices only.
0
5.0
10
15
20
25
30
0
1.0
2.0
4.0
5.0
6.0
V
, INPUT VOLTAGE (V)
V
, INPUT VOLTAGE (V)
in
in
Figure 5. Output Voltage versus Input Voltage
Figure 6. Load Dump Characteristics
6.0
V
= 5.0 V
= 50 Ω
= 100 µF
= 150 ms
out
L
O
R
C
τ
V
V
= 15 V
5.0
4.0
3.0
CC
= 5.05 V
FB1
T
= 25°C
A
0
0
2.0
1.0
0
V
R
= 5.0 V
out
L
= 500
Ω
T
= 25°C
A
–20
–10
0
10
20
30
40
50
60
t, TIME (50 ms/DIV)
V
, INPUT VOLTAGE (V)
in
5
MOTOROLA ANALOG IC DEVICE DATA