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REGULATOR(MC7812C)
ELECTRICAL CHARACTERISTICS MC7812
(Refer to test circuit, T
< T
min
Characteristic
Output Voltage
Line Regulation
Load Regulation
Quiescent Current
Quiescent Current Change
Output Voltage Drift
Output Noise Boltage
Ripple
Rejection
Dropout Voltage
Output Resistance
Short Circuit Current
Peak Current
* T
< T
< T
min
i
max
MC78XXI : T
= -40℃, T
min
MC78XXC, T
= 0℃, T
min
max
* Load and line regulation are specified at constant junction temperature. Changes in V
account separately. Pulse testing with low duty is used.
< T
V
= 500mA, V
= 19V, C
i
max,
i
i
Symbol
V
o
△V
Ti = 25℃
o
△V
Ti = 25℃
o
I
d
△I
d
△V
/△T
o
V
n
RR
V
D
R
O
I
SC
I
peak
= 125℃
max
= 125℃
= 0.33㎌, C
= 1.0㎌ unless otherwise specified)
o
i
Test Conditions
Ti = 25℃
5.0mA≤I
≤1.0A, P
≤15W
o
o
V
= 14.5V to 27V
in
V
= 15.5V to 27V
i
V
= 14.5V to 30V
i
V
= 16V to 22V
i
I
= 5.0mA to 1.5V
o
I
= 250mA to 750mA
o
T
= 25℃
i
Io = 5mA to 1.0A
V
= 14.5V to 30V
i
V
= 15V to 30V
i
I
= 5mA
o
f = 10Hz to 100KHz T
= 25℃
i
fF = 120Hz
V
= 15 to 25V
i
I
= 1A, T
= 25℃
o
i
f = 1KHz
V
= 35V, T
= 25℃
i
i
T
= 25℃
i
65
MC7805C
Min
Typ
11.5
12
11.4
12
10
3.0
12
4.0
5.1
-1
75
55
71
2
18
250
2.2
due to heating effects must be taken into
o
Unit
Max
12.5
V
12.6
240
mV
120
240
mV
120
mA
8
0.5
1.0
mA
mV/℃
㎶
dB
V
mΩ
mA
A
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