MC7800, MC7800A, LM340, LM340A Series
ELECTRICAL CHARACTERISTICS (V = 27 V, I = 1.0 A, T = T
in
to T [Note 1], unless otherwise noted.)
high
O
J
low
MC7818AC
Characteristic
Symbol
Min
17.64
17.3
Typ
18
Max
18.36
18.7
Unit
Vdc
Vdc
Output Voltage (T = 25°C)
V
V
J
O
Output Voltage (5.0 mA ≤ I ≤ 1.0 A, P ≤ 15 W)
18
O
D
O
21 Vdc ≤ V ≤ 33 Vdc
in
Line Regulation (Note 2)
Reg
mV
line
21 Vdc ≤ V ≤ 33 Vdc, I = 500 mA
in
–
–
–
–
9.5
3.2
3.2
8.0
22
25
10.5
22
O
24 Vdc ≤ V ≤ 30 Vdc, I = 1.0 A
in
O
24 Vdc ≤ V ≤ 30 Vdc, I = 1.0 A, T = 25°C
in
O
J
20.6 Vdc ≤ V ≤ 33 Vdc, I = 1.0 A, T = 25°C
in
O
J
Load Regulation (Note 2)
Reg
load
mV
5.0 mA ≤ I ≤ 1.5 A, T = 25°C
–
–
–
2.0
1.8
1.5
25
25
15
O
J
5.0 mA ≤ I ≤ 1.0 A
O
250 mA ≤ I ≤ 750 mA
O
Quiescent Current
I
–
3.5
6.0
mA
mA
B
Quiescent Current Change
∆I
B
21 Vdc ≤ V ≤ 33 Vdc, I = 500 mA
in
–
–
–
–
–
–
0.8
0.8
0.5
O
21.5 Vdc ≤ V ≤ 30 Vdc, T = 25°C
in
J
5.0 mA ≤ I ≤ 1.0 A
O
Ripple Rejection
RR
53
57
–
dB
22 Vdc ≤ V ≤ 32 Vdc, f = 120 Hz, I = 500 mA
in
O
Dropout Voltage (I = 1.0 A, T = 25°C)
V – V
O
–
–
2.0
10
–
–
Vdc
O
J
I
Output Noise Voltage (T = 25°C)
V
n
µV/V
O
A
10 Hz ≤ f ≤ 100 kHz
Output Resistance f = 1.0 kHz
r
–
–
1.3
0.2
–
–
mΩ
O
Short Circuit Current Limit (T = 25°C)
I
A
A
SC
V
in
= 35 Vdc
Peak Output Current (T = 25°C)
I
–
–
2.2
–
–
A
J
max
Average Temperature Coefficient of Output Voltage
TCV
–1.5
mV/°C
O
ELECTRICAL CHARACTERISTICS (V = 33 V, I = 500 mA, T = T
in
to T [Note 1], unless otherwise noted.)
high
O
J
low
MC7824C
Characteristic
Symbol
Min
23
Typ
24
Max
25
Unit
Vdc
Vdc
Output Voltage (T = 25°C)
V
V
J
O
Output Voltage (5.0 mA ≤ I ≤ 1.0 A, P ≤ 15 W)
22.8
24
25.2
O
D
O
27 Vdc ≤ V ≤ 38 Vdc
in
Line Regulation, (Note 2)
Reg
mV
mV
line
27 Vdc ≤ V ≤ 38 Vdc
–
–
2.7
2.7
60
48
in
30 Vdc ≤ V ≤ 36 Vdc
in
Load Regulation, (Note 2)
Reg
–
4.4
65
load
5.0 mA ≤ I ≤ 1.5 A
O
Quiescent Current
I
–
3.6
6.5
mA
mA
B
Quiescent Current Change
∆I
B
27 Vdc ≤ V ≤ 38 Vdc
–
–
–
–
1.0
0.5
in
5.0 mA ≤ I ≤ 1.0 A
O
NOTES: 1. T
low
= –40°C for MC78XXAC, C
T
= +125°C for MC78XXAC, C
high
2. Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must be taken into account
O
separately. Pulse testing with low duty cycle is used.
11
MOTOROLA ANALOG IC DEVICE DATA