Datasheet

Electrical characteristics L78MxxC
10/30 DocID2146 Rev 19
Refer to the test circuits, T
J
= 25 °C, V
I
= 23 V, I
O
= 350 mA, C
I
= 0.33 µF, C
O
= 0.1 µF
unless otherwise specified.
Refer to the test circuits, T
J
= 25 °C, V
I
= 23 V, I
O
= 350 mA, C
I
= 0.33 µF, C
O
= 0.1 µF
unless otherwise specified.
Table 9. Electrical characteristics of L78M15C
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage 14.4 15 15.6 V
V
O
Output voltage I
O
= 5 to 350 mA, V
I
= 17.5 to 30 V 14.25 15 15.75 V
V
O
Line regulation
V
I
= 17.5 to 30 V, I
O
= 200 mA 100
mV
V
I
= 20 to 30 V, I
O
= 200 mA 50
V
O
Load regulation
I
O
= 5 to 500 mA, T
J
= 25 °C 300
mV
I
O
= 5 to 200 mA, T
J
= 25 °C 150
I
d
Quiescent current 6 mA
I
d
Quiescent current change
I
O
= 5 to 350 mA 0.5
mA
I
O
= 200 mA, V
I
= 17.5 to 30 V 0.8
V
O
/T Output voltage drift I
O
= 5 mA, T
J
= 0 to 125 °C -1 mV/°C
SVR Supply voltage rejection
V
I
= 18.5 to 28.5 V, f = 120 Hz,
I
O
= 300 mA
54 dB
eN Output noise voltage B = 10 Hz to 100 kHz 90 µV
V
d
Dropout voltage 2 V
I
sc
Short circuit current V
I
= 35 V 240 mA
Table 10. Electrical characteristics of L78M24C
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage 232425 V
V
O
Output voltage I
O
= 5 to 350 mA, V
I
= 27 to 38 V 22.8 24 25.2 V
V
O
Line regulation
V
I
= 27 to 38 V, I
O
= 200 mA 100
mV
V
I
= 28 to 38 V, I
O
= 200 mA 50
V
O
Load regulation
I
O
= 5 to 500 mA, T
J
= 25 °C 480
mV
I
O
= 5 to 200 mA, T
J
= 25 °C 240
I
d
Quiescent current 6 mA
I
d
Quiescent current change
I
O
= 5 to 350 mA 0.5
mA
I
O
= 200 mA, V
I
= 27 to 38 V 0.8
V
O
/T Output voltage drift I
O
= 5 mA, T
J
= 0 to 125 °C -1.2 mV/°C
SVR Supply voltage rejection V
I
= 28 to 38 V, f = 120 Hz, I
O
= 300 mA 50 dB
eN Output noise voltage B = 10 Hz to 100 kHz 170 µV
V
d
Dropout voltage 2 V
I
sc
Short circuit current V
I
= 35 V 240 mA