KA78MXX
Electrical Characteristics (KA78M18/KA78M18R)
(Refer to the test circuits, 0 ≤ T ≤ +125°C, I =350mA, V =26V, unless otherwise specified, C = 0.33µF, C =0.1µF)
J
O
I
I
O
Parameter
Output Voltage
Symbol
Conditions
Min. Typ. Max. Unit
T =+25°C
17.3 18
18.7
J
V
O
V
I
= 5 to 350mA
V = 20.5 to 33V
O
17.1 18
18.9
I
V = 21 to 33V
-
-
-
-
-
-
-
100
50
I
I
= 200mA
O
J
Line Regulation
∆V
mV
O
T =+25°C
V = 24 to 33V
I
-
I
I
= 5mA to 0.5A, T =+25°C
-
-
360
180
6
O
O
J
Load Regulation
∆VΟ
mV
mA
= 5mA to 200mA, T =+25°C
J
Quiescent Current
I
T =+25°C
4.2
-
Q
J
I
= 5mA to 350mA
0.5
O
Quiescent Current Change
∆I
mA
Q
I
= 200mA
O
I
-
-
0.8
V = 21 to 33V
Output Voltage Drift
Output Noise Voltage
Ripple Rejection
Dropout Voltage
∆V/∆T
I
=5mAT =0 to 125°C
-
-
−1.1
100
-
-
-
-
-
-
-
mV/°C
µV
O
J
V
N
f=10Hz to 100KHz
f=120Hz, I =300mA , V =22 to 32V
RR
53
-
dB
O
I
V
D
T =+25°C, I =500mA
2
V
J
O
Short Circuit Current
Peak Current
I
T =+25°C, V =35V
-
300
700
mA
mA
SC
J
I
I
T =+25°C
-
PK
J
Notes:
*Load and line regulation are specified at constant, junction temperature. Change in V due to heating effects must be taken
o
into account separately. Pulse testing with low duty is used.
8
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
