Datasheet

Electrical characteristics
L78L
24/45
DocID2145 Rev 26
Refer to the test circuits, T
J
= 0 to 125 °C (AC) T
J
= -40 to 125 °C (AB),V
I
= 33 V,
I
O
= 40 mA, C
I
= 0.33 μF, C
O
= 0.1 μF unless otherwise specified.
Table 21: Electrical characteristics of L78L24AB and L78L24AC
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
V
O
Output voltage
T
J
= 25 °C
23
24
25
V
V
O
Output voltage
I
O
= 1 to 40 mA, V
I
= 27 to 38 V
22.8
25.2
V
I
O
= 1 to 70 mA, V
I
= 33 V
22.8
25.2
∆V
O
Line regulation
V
I
= 27 to 38 V, T
J
= 25 °C
350
mV
V
I
= 28 to 38 V, T
J
= 25 °C
300
∆V
O
Load regulation
I
O
= 1 to 100 mA, T
J
= 25 °C
200
mV
I
O
= 1 to 40 mA, T
J
= 25 °C
100
I
d
Quiescent current
T
J
= 25 °C
6.5
mA
T
J
= 125 °C
6
mA
∆I
d
Quiescent current change
I
O
= 1 to 40 mA
0.1
mA
V
I
= 28 to 38 V
1.5
eN
Output noise voltage
B = 10 Hz to 100 kHz, T
J
= 25 °C
200
µV5y
SVR
Supply voltage rejection
V
I
= 29 to 33 V, f = 120 Hz
I
O
= 40 mA, T
J
= 25 °C
31
37
dB
V
d
Dropout voltage
1.7
V
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