MC78LXXA/LM78LXXA/MC78L05AA
Electrical Characteristics(MC78L18A) (Continued)
(V = 27V, I = 40mA, 0°C ≤ T ≤ 125°C, C = 0.33µF, C = 0.1µF, unless otherwise specified. (Note 1)
I
O
J
I
O
Parameter
Symbol
Conditions
Min. Typ. Max. Unit
Output Voltage
V
T = 25°C
J
17.3
18
18.7
V
O
21V ≤ V ≤ 33V
-
145 300
135 250
mV
mV
mV
mV
V
I
Line Regulation (Note1)
Load Regulation (Note1)
∆V
∆V
T = 25°C
J
O
O
22V ≤ V ≤ 33V
-
I
1mA ≤ I ≤100mA
-
-
30
15
-
170
85
O
T = 25°C
J
1mA ≤ I ≤ 40mA
O
21V ≤ V ≤ 33V 1mA ≤ I ≤ 40mA
17.1
18.9
I
O
Output Voltage
V
O
21V ≤ V ≤
I
1mA ≤ I ≤ 70mA
17.1
-
18.9
V
O
V
MAX
(Note 2)
Quiescent Current
I
T = 25°C
-
-
-
-
-
2.2
-
6.0
mA
mA
Q
J
Quiescent Current
Change
With Line
With Load
∆I
∆I
21V ≤ V ≤ 33V
1.5
Q
I
1mA ≤ I ≤ 40mA
-
0.1
mA
Q
N
O
Output Noise Voltage
V
T = 25°C, 10Hz ≤ f ≤ 100kHz
A
150
-1.8
48
1.7
-
-
-
-
µV/Vo
mV/°C
dB
Temperature Coefficient of V
Ripple Rejection
∆V /∆T
I = 5mA
O
O
O
RR
f = 120Hz, 23V ≤ V ≤ 33V, T = 25°C 34
I J
Dropout Voltage
V
T = 25°C
J
-
V
D
Note:
1. The maximum steady state usable output current and input voltage are very dependent on the heat sinking and/or lead length
of the package. The data above represent pulse test conditions with junction temperature as indicated at the initiation of tests.
2. Power dissipation P ≤ 0.75W.
D
6
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
