MC79XX/MC79XXA/LM79XX
Electrical Characteristics (MC7918)
(Continued)
(V
I
= -27V, I
O
= 500mA, 0°C
≤T
J
≤
+125°C, C
I
=2.2µF, C
O
=1µF, unless otherwise specified.)
Parameter
Output Voltage
Symbol
T
J
= +25°C
V
O
I
O
= 5mA to 1A, P
O
≤
15W
V
I
= -22.5V to -33V
T
J
= +25°C
T
J
= +25°C
I
O
= 5mA to 1.5A
T
J
= +25°C
I
O
= 250mA to 750mA
T
J
= +25°C
I
O
= 5mA to 1A
V
I
= -21V to -33V
I
O
= 5mA
f = 10Hz to 100kHz
T
A
= +25°C
f = 120Hz
∆V
I
= 10V
T
J
= +25°C
I
O
= 1A
T
J
= +25°C, V
I
= -35V
T
J
= +25°C
V
I
= -21V to -33V
V
I
= -24V to -30V
Conditions
Min.
-17.3
-17.1
-
-
-
-
-
-
-
-
-
54
-
-
-
Typ. Max.
-18
-18
15
8
15
5
3
0.05
0.1
-1
300
60
2
300
2.2
-18.7
-18.9
360
180
360
mV
180
6
0.5
1
-
-
-
-
-
-
mA
mA
mV/°C
µV
dB
V
mA
A
V
Unit
Line Regulation (Note1)
∆V
O
mV
Load Regulation (Note1)
∆V
O
Quiescent Current
Quiescent Current Change
Temperature Coefficient of V
D
Output Noise Voltage
Ripple Rejection
Dropout Voltage
Short Circuit Current
Peak Current
I
Q
∆I
Q
∆Vo/∆T
V
N
RR
V
D
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.
9
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
