Datasheet

DocID2146 Rev 19 9/30
L78MxxC Electrical characteristics
Refer to the test circuits, T
J
= 25 °C, V
I
= 15 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
= 19 V, I
O
= 350 mA, C
I
= 0.33 µF, C
O
= 0.1 µF
unless otherwise specified.
Table 7. Electrical characteristics of L78M09C
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage 8.65 9 9.35 V
V
O
Output voltage I
O
= 5 to 350 mA, V
I
= 11.5 to 24 V 8.55 9 9.45 V
V
O
Line regulation
V
I
= 11.5 to 25 V, I
O
= 200 mA 100
mV
V
I
= 12 to 25 V, I
O
= 200 mA 50
V
O
Load regulation
I
O
= 5 to 500 mA, T
J
= 25 °C 180
mV
I
O
= 5 to 200 mA, T
J
= 25 °C 90
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
= 11.5 to 25 V 0.8
V
O
/T Output voltage drift I
O
= 5 mA, T
J
= 0 to 125 °C -0.5 mV/°C
SVR Supply voltage rejection
V
I
= 12.5 to 23 V, f = 120 Hz,
I
O
= 300 mA
56 dB
eN Output noise voltage B = 10 Hz to 100 kHz 58 µV
V
d
Dropout voltage 2 V
I
sc
Short circuit current V
I
= 35 V 250 mA
Table 8. Electrical characteristics of L78M12C
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage 11.5 12 12.5 V
V
O
Output voltage I
O
= 5 to 350 mA, V
I
= 14.5 to 27 V 11.4 12 12.6 V
V
O
Line regulation
V
I
= 14.5 to 30 V, I
O
= 200 mA 100
mV
V
I
= 16 to 30 V, I
O
= 200 mA 50
V
O
Load regulation
I
O
= 5 to 500 mA, T
J
= 25 °C 240
mV
I
O
= 5 to 200 mA, T
J
= 25 °C 120
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
= 14.5 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
= 15 to 25 V, f = 120 Hz, I
O
= 300 mA 55 dB
eN Output noise voltage B = 10 Hz to 100 kHz 75 µV
V
d
Dropout voltage 2 V
I
sc
Short circuit current V
I
= 35 V 240 mA