MC7800, MC7800A, NCV7805
ELECTRICAL CHARACTERISTICS (V = 14 V, I = 1.0 A, T = T to T (Note 11), unless otherwise noted)
high
in
O
J
low
MC7808AB/MC7808AC
Characteristic
Symbol
Min
7.84
7.7
Typ
8.0
8.0
Max
8.16
8.3
Unit
Vdc
Vdc
Output Voltage (T = 25°C)
V
O
V
O
J
Output Voltage (5.0 mA ≤ I ≤ 1.0 A, P ≤ 15 W)
O
D
10.6 Vdc ≤ V ≤ 23 Vdc
in
Line Regulation (Note 12)
Reg
mV
line
−
−
−
6.0
1.7
5.0
15
18
15
10.6 Vdc ≤ V ≤ 25 Vdc, I = 500 mA
in
O
11 Vdc ≤ V ≤ 17 Vdc, I = 1.0 A
in
O
10.4 Vdc ≤ V ≤ 23 Vdc, T = 25°C
in
J
Load Regulation (Note 12)
Reg
load
mV
−
−
−
1.4
1.0
0.22
25
25
15
5.0 mA ≤ I ≤ 1.5 A, T = 25°C
O
J
5.0 mA ≤ I ≤ 1.0 A
O
250 mA ≤ I ≤ 750 mA
O
Quiescent Current
I
−
3.3
6.0
mA
mA
B
Quiescent Current Change
DI
B
−
−
−
−
−
−
0.8
0.8
0.5
11 Vdc ≤ V ≤ 25 Vdc, I = 500 mA
in
O
10.6 Vdc ≤ V ≤ 23 Vdc, I = 1.0 A, T = 25°C
in
O
J
5.0 mA ≤ I ≤ 1.0 A
O
Ripple Rejection
RR
56
62
−
dB
11.5 Vdc ≤ V ≤ 21.5 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
mV/V
O
A
10 Hz ≤ f ≤ 100 kHz
Output Resistance f = 1.0 kHz
r
−
−
0.9
0.2
−
−
mW
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
−0.4
mV/°C
O
11. T = 0°C for MC78XXAC, C = +125°C for MC78XXAC, C, NCV7805
T
high
low
= *40°C for MC78XXB, MC78XXAB, NCV7805
12.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.
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