Datasheet

ELECTRICAL CHARACTERISTICS FOR L78L18 (refer to the test circuits, T
j
=0to125
o
C,
V
i
= 27V, I
o
=40mA,C
i
=0.33µF, C
o
=0.1µF unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
o
Output Voltage T
j
=25
o
C 16.6 18 19.4 V
V
o
Output Voltage I
o
= 1 to 40 mA V
i
=22to33V
I
o
= 1 to 70 mA V
i
=27V
16.2
16.2
19.8
19.8
V
V
∆V
o
Line Regulation V
i
=22to33V T
j
=25
o
C
V
i
=22to33V T
j
=25
o
C
320
270
mV
mV
∆V
o
Load Regulation I
o
= 1 to 100 mA T
j
=25
o
C
I
o
= 1 to 40 mA T
j
=25
o
C
170
85
mV
mV
I
d
Quiescent Current T
j
=25
o
C
T
j
= 125
o
C
6.5
6
mA
mA
∆I
d
Quiescent Current Change I
o
= 1 to 40 mA 0.2 mA
∆I
d
Quiescent Current Change V
i
= 23 to 33 V 1.5 mA
eN Output Noise Voltage B = 10Hz to 100KHz T
j
=25
o
C 120 µV
SVR Supply Voltage Rejection I
o
= 40 mA f = 120 Hz T
j
=25
o
C
V
i
=23to33V
32 38 dB
V
d
Dropout Voltage 1.7 V
ELECTRICAL CHARACTERISTICS FOR L78L24 (refer to the test circuits, T
j
=0to125
o
C,
V
i
= 33V, I
o
=40mA,C
i
=0.33µF, C
o
=0.1µF unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
V
o
Output Voltage T
j
=25
o
C 22.1 24 25.9 V
V
o
Output Voltage I
o
= 1 to 40 mA V
i
=27to38V
I
o
= 1 to 70 mA V
i
=33V
21.6
21.6
26.4
26.4
V
V
∆V
o
Line Regulation V
i
=27to38V T
j
=25
o
C
V
i
=28to38V T
j
=25
o
C
350
300
mV
mV
∆V
o
Load Regulation I
o
= 1 to 100 mA T
j
=25
o
C
I
o
= 1 to 40 mA T
j
=25
o
C
200
100
mV
mV
I
d
Quiescent Current T
j
=25
o
C
T
j
= 125
o
C
6.5
6
mA
mA
∆I
d
Quiescent Current Change I
o
= 1 to 40 mA 0.2 mA
∆I
d
Quiescent Current Change V
i
= 28 to 38 V 1.5 mA
eN Output Noise Voltage B = 10Hz to 100KHz T
j
=25
o
C 200 µV
SVR Supply Voltage Rejection I
o
= 40 mA f = 120 Hz T
j
=25
o
C
V
i
=29to35V
30 37 dB
V
d
Dropout Voltage 1.7 V
L78L00 SERIES
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