
ELECTRICAL CHARACTERISTICS FOR L78M20C
(refer to the test circuits, T
j
= 25
o
C,
V
i
= 29V, I
o
= 350 mA, C
i
= 0.33
μ
F, C
o
= 0.1
μ
F unless otherwise specified)
Symbol
V
o
V
o
Parameter
Test Conditions
Min.
19.2
19
Typ.
20
20
Max.
20.8
21
Unit
V
V
Output Voltage
Output Voltage
I
o
= 5 mA to 350 mA
V
i
= 23 to 35 V
I
o
= 200 mA
I
o
= 200 mA
I
o
= 5 to 500 mA
I
o
= 5 to 200 mA
V
o
Line Regulation
V
i
= 23 to 35 V
V
i
= 24 to 35 V
T
j
= 25
o
C
T
j
= 25
o
C
100
50
400
200
6
0.5
0.8
mV
mV
mV
mV
mA
mA
mA
mV/
o
C
V
o
Load Regulation
I
d
I
d
I
d
V
o
T
e
N
SVR
Quiescent Current
Quiescent Current Change
Quiescent Current Change
Output Voltage Drift
I
o
= 5 to 350 mA
I
o
= 200 mA
I
o
= 5 mA
V
i
= 23 to 35 V
T
j
= 0 to 125
o
C
-1.1
Output Noise Voltage
Supply Voltage Rejection
B = 10Hz to 100KHz
I
o
= 300 mA
V
i
= 24 to 34 V
110
μ
V
dB
f = 120 Hz
53
V
d
I
sc
I
scp
Dropout Voltage
Short Circuit Current
Short Circuit Peack Current
2
V
V
i
= 35 V
240
700
mA
mA
ELECTRICAL CHARACTERISTICS FOR L78M24C
(refer to the test circuits, T
j
= 25
o
C,
V
i
= 33V, I
o
= 350 mA, C
i
= 0.33
μ
F, C
o
= 0.1
μ
F unless otherwise specified)
Symbol
V
o
V
o
Parameter
Test Conditions
Min.
23
22.8
Typ.
24
24
Max.
25
25.2
Unit
V
V
Output Voltage
Output Voltage
I
o
= 5 mA to 350 mA
V
i
= 27 to 38 V
I
o
= 200 mA
I
o
= 200 mA
I
o
= 5 to 500 mA
I
o
= 5 to 200 mA
V
o
Line Regulation
V
i
= 27 to 38 V
V
i
= 28 to 38 V
T
j
= 25
o
C
T
j
= 25
o
C
100
50
480
240
6
0.5
0.8
mV
mV
mV
mV
mA
mA
mA
mV/
o
C
V
o
Load Regulation
I
d
I
d
I
d
V
o
T
e
N
SVR
Quiescent Current
Quiescent Current Change
Quiescent Current Change
Output Voltage Drift
I
o
= 5 to 350 mA
I
o
= 200 mA
I
o
= 5 mA
V
i
= 27 to 38 V
T
j
= 0 to 125
o
C
-1.2
Output Noise Voltage
Supply Voltage Rejection
B = 10Hz to 100KHz
I
o
= 300 mA
V
i
= 28 to 38 V
170
μ
V
dB
f = 120 Hz
50
V
d
I
sc
I
scp
Dropout Voltage
Short Circuit Current
Short Circuit Peack Current
2
V
V
i
= 35 V
240
700
mA
mA
L78M00 SERIES
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