MC78XX/LM78XX/MC78XXA
Electrical Characteristics (MC7824)
(Refer to test circuit ,0°C < T
J
< 125°C, I
O
= 500mA, V
I
=33V, C
I
= 0.33µF, C
O
=0.1µF, unless otherwise specified)
Parameter
Symbol
T
J
=+25
o
C
Output Voltage
V
O
5.0mA
≤
I
O
≤
1.0A, P
O
≤
15W
V
I
= 27V to 38V
T
J
=+25
o
C
T
J
=+25
o
C
T
J
=+25
o
C
I
O
= 5mA to 1.0A
V
I
= 27V to 38V
I
O
= 5mA
f = 10Hz to 100KHz, T
A
=+25
o
C
f = 120Hz
V
I
= 28V to 38V
I
O
= 1A, T
J
=+25
o
C
f = 1KHz
V
I
= 35V, T
A
=+25
o
C
T
J
=+25
o
C
V
I
= 27V to 38V
V
I
= 30V to 36V
I
O
= 5mA to 1.5A
I
O
= 250mA to 750mA
Conditions
MC7824
Min.
23
22.8
-
-
-
-
-
-
-
-
-
50
-
-
-
-
Typ. Max.
24
24
17
6
15
5.0
5.2
0.1
0.5
-1.5
60
67
2
28
230
2.2
25
25.25
480
240
480
240
8.0
0.5
1
-
-
-
-
-
-
-
V
mV
mV
mA
mA
mV/
o
C
µV/Vo
dB
V
mΩ
mA
A
Unit
Line Regulation (Note1)
Load Regulation (Note1)
Quiescent Current
Quiescent Current Change
Output Voltage Drift
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Output Resistance
Short Circuit Current
Peak Current
Regline
Regload
I
Q
∆I
Q
∆V
O
/∆T
V
N
RR
V
Drop
r
O
I
SC
I
PK
Note:
1. Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken
into account separately. Pulse testing with low duty is used.
10
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
