MC7800, MC7800A, NCV7805
ELECTRICAL CHARACTERISTICS (V = 14 V, I = 500 mA, T = T to T
(Note 9), unless otherwise noted)
in
O
J
low
high
MC7808B
MC7808C
Typ
Characteristic
Output Voltage (T = 25°C)
Symbol
Min
Typ
Max
Min
Max
Unit
Vdc
Vdc
V
O
V
O
7.7
8.0
8.3
7.7
8.0
8.3
J
Output Voltage (5.0 mA ≤ I ≤ 1.0 A, P ≤ 15 W)
O
D
10.5 Vdc ≤ V ≤ 23 Vdc
−
−
−
7.6
−
8.0
−
8.4
−
in
11.5 Vdc ≤ V ≤ 23 Vdc
7.6
8.0
8.4
in
Line Regulation, T = 25°C, (Note 10)
Reg
mV
mV
J
line
10.5 Vdc ≤ V ≤ 25 Vdc
−
−
−
6.0
1.7
1.4
160
80
−
−
−
6.0
1.7
1.4
32
16
35
in
11 Vdc ≤ V ≤ 17 Vdc
in
Load Regulation, T = 25°C (Note 10)
Reg
160
J
load
5.0 mA ≤ I ≤ 1.5 A
O
Quiescent Current
I
−
3.3
8.0
−
3.3
8.0
mA
mA
B
Quiescent Current Change
DI
B
10.5 Vdc ≤ V ≤ 25 Vdc
−
−
−
−
−
−
0.5
−
−
−
−
−
1.0
0.5
−
in
5.0 mA ≤ I ≤ 1.0 A
O
Ripple Rejection
RR
62
56
62
dB
11.5 Vdc ≤ V ≤ 18 Vdc, f = 120 Hz
in
Dropout Voltage (I = 1.0 A, T = 25°C)
V − V
O
−
−
2.0
10
−
−
−
−
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
−
−
−
−
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
−
−
−
−
2.2
−
−
A
J
max
Average Temperature Coefficient of Output Voltage
TCV
−0.4
−0.4
mV/°C
O
9. T
= 0°C for MC78XXAC, C
T
high
= +125°C for MC78XXAC, C, NCV7805
low
= *40°C for MC78XXB, MC78XXAB, NCV7805
10.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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