MC7800, MC7800A, NCV7805
ELECTRICAL CHARACTERISTICS (V = 27 V, I = 500 mA, T = T to T (Note 24), unless otherwise noted)
high
in
O
J
low
MC7818B
Typ
MC7818C
Typ
Characteristic
Output Voltage (T = 25°C)
Symbol
Min
Max
Min
Max
Unit
Vdc
Vdc
V
O
V
O
17.3
18
18.7
17.3
18
18.7
J
Output Voltage (5.0 mA ≤ I ≤ 1.0 A, P ≤ 15 W)
O
D
21 Vdc ≤ V ≤ 33 Vdc
−
−
−
17.1
−
18
−
18.9
−
in
22 Vdc ≤ V ≤ 33 Vdc
17.1
18
18.9
in
Line Regulation, (Note 25)
Reg
mV
mV
line
21 Vdc ≤ V ≤ 33 Vdc
−
−
−
9.5
3.2
2.0
360
180
360
−
−
−
9.5
3.2
2.0
50
25
55
in
24 Vdc ≤ V ≤ 30 Vdc
in
Load Regulation, (Note 25)
Reg
load
5.0 mA ≤ I ≤ 1.5 A
O
Quiescent Current
I
−
3.5
8.0
−
3.5
6.5
mA
mA
B
Quiescent Current Change
DI
B
21 Vdc ≤ V ≤ 33 Vdc
−
−
−
−
−
−
0.5
−
−
−
−
−
1.0
0.5
−
in
5.0 mA ≤ I ≤ 1.0 A
O
Ripple Rejection
RR
57
53
57
dB
22 Vdc ≤ V ≤ 33 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
iI
Output Noise Voltage (T = 25°C)
V
n
mV/V
O
A
10 Hz ≤ f ≤ 100 kHz
Output Resistance f = 1.0 kHz
r
−
−
1.3
0.2
−
−
−
−
1.3
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
−1.5
−1.5
mV/°C
O
24.T
= 0°C for MC78XXAC, C
T
high
= +125°C for MC78XXAC, C, NCV7805
low
= *40°C for MC78XXB, MC78XXAB, NCV7805
25.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.
http://onsemi.com
15
ONSEMI [ ONSEMI ]
