Datasheet

L78Sxx, L78SxxC Electrical characteristics
Doc ID 2148 Rev 7 11/39
Refer to the test circuits, T
J
= 25 °C, V
I
= 15 V, I
O
= 500 mA, unless otherwise specified.
Refer to the test circuits, T
J
= 25 °C, V
I
= 19 V, I
O
= 500 mA, unless otherwise specified.
Table 7. Electrical characteristics of L78S10
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage 9.5 10 10.5 V
V
O
Output voltage I
O
= 1 A, V
I
= 12.5 V 9.4 10 10.6 V
ΔV
O
Line regulation
V
I
= 12.5 to 30 V 200
mV
V
I
= 14 to 22 V 100
ΔV
O
Load regulation I
O
= 20 mA to 2 A 150 mV
I
Q
Quiescent current 8 mA
ΔI
Q
Quiescent current change
I
O
= 20 mA to 1A 0.5
mA
V
I
= 12.5 to 30 V, I
O
= 20 mA 1
ΔV
O
/ΔT Output voltage drift I
O
= 5 mA, T
J
= -55 °C to 150 °C -1 mV/°C
eN Output noise voltage B =10 Hz to 100 kHz 65 µV
SVR Supply voltage rejection f = 120 Hz 53 dB
V
I
Operating input voltage I
O
≤ 1.5 A 13 V
R
O
Output resistance f = 1 kHz 17 mΩ
I
sc
Short circuit current V
I
= 27 V 500 mA
I
scp
Short circuit peak current 3 A
Table 8. Electrical characteristics of L78S12
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage 11.5 12 12.5 V
V
O
Output voltage I
O
= 1 A, V
I
= 14.5 V 11.4 12 12.6 V
ΔV
O
Line regulation
V
I
= 14.5 to 30 V 240
mV
V
I
= 16 to 22 V 120
ΔV
O
Load regulation I
O
= 20 mA to 2 A 160 mV
I
Q
Quiescent current 8 mA
ΔI
Q
Quiescent current change
I
O
= 20 mA to 1 A 0.5
mA
V
I
= 14.5 to 30 V, I
O
= 20 mA 1
ΔV
O
/ΔT Output voltage drift I
O
= 5 mA, T
J
= -55 °C to 150 °C -1 mV/°C
eN Output noise voltage B =10 Hz to 100 kHz 75 µV
SVR Supply voltage rejection f = 120 Hz 53 dB
V
I
Operating input voltage I
O
≤ 1.5 A 15 V
R
O
Output resistance f = 1 kHz 18 mΩ
I
sc
Short circuit current V
I
= 27 V 500 mA
I
scp
Short circuit peak current 3 A