MC7800, MC7800A, NCV7805
ELECTRICAL CHARACTERISTICS (V = 19 V, I = 500 mA, T = T to T (Note 16), unless otherwise noted)
high
in
O
J
low
MC7812B
Typ
MC7812C
Typ
Characteristic
Output Voltage (T = 25°C)
Symbol
Min
Max
Min
Max
Unit
Vdc
Vdc
V
O
V
O
11.5
12
12.5
11.5
12
12.5
J
Output Voltage (5.0 mA ≤ I ≤ 1.0 A, P ≤ 15 W)
O
D
14.5 Vdc ≤ V ≤ 27 Vdc
−
−
−
11.4
−
12
−
12.6
−
in
15.5 Vdc ≤ V ≤ 27 Vdc
11.4
12
12.6
in
Line Regulation, T = 25°C (Note 17)
Reg
mV
J
line
14.5 Vdc ≤ V ≤ 30 Vdc
−
−
−
−
7.5
2.2
−
240
120
−
−
−
−
−
3.8
0.3
−
24
24
48
60
in
16 Vdc ≤ V ≤ 22 Vdc
in
14.8 Vdc ≤ V ≤ 27 Vdc, I = 1.0 A
in
O
Load Regulation, T = 25°C (Note 17)
Reg
1.6
240
8.1
mV
J
load
5.0 mA ≤ I ≤ 1.5 A
O
Quiescent Current
I
−
3.4
8.0
−
3.4
6.5
mA
mA
B
Quiescent Current Change
DI
B
14.5 Vdc ≤ V ≤ 30 Vdc, I = 1.0 A, T = 25°C
−
−
−
−
−
−
−
1.0
0.5
−
−
−
−
−
0.7
0.8
0.5
−
in
O
J
15 Vdc ≤ V ≤ 30 Vdc
in
5.0 mA ≤ I ≤ 1.0 A
−
−
−
O
Ripple Rejection
RR
60
55
60
dB
15 Vdc ≤ V ≤ 25 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
−
−
1.1
0.2
−
−
−
−
1.1
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
16.T = 0°C for MC78XXAC, C
TCV
−0.8
−0.8
mV/°C
O
T
high
= +125°C for MC78XXAC, C, NCV7805
low
= *40°C for MC78XXB, MC78XXAB, NCV7805
17.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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