Datasheet

L78MxxC Electrical characteristics
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Table 8. Electrical characteristics of L78M12C (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)
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
ΔV
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
ΔV
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
ΔI
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
ΔV
O
/ΔT 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 = 120Hz, I
O
= 300mA 55 dB
eN Output noise voltage B =10Hz to 100kHz 75 µV
V
d
Dropout voltage 2 V
I
sc
Short circuit current V
I
= 35 V 240 mA
Table 9. Electrical characteristics of L78M15C (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)
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
ΔV
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
ΔV
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
ΔI
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
ΔV
O
/ΔT 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 = 120Hz,
I
O
= 300mA
54 dB
eN Output noise voltage B =10Hz to 100kHz 90 µV
V
d
Dropout voltage 2 V
I
sc
Short circuit current V
I
= 35 V 240 mA