Datasheet

Electrical characteristics L78Sxx, L78SxxC
10/39 Doc ID 2148 Rev 7
Refer to the test circuits, T
J
= 25 °C, V
I
= 12.5 V, I
O
= 500 mA, unless otherwise specified.
Refer to the test circuits, T
J
= 25 °C, V
I
= 14 V, I
O
= 500 mA, unless otherwise specified.
Table 5. Electrical characteristics of L78S75
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage 7.15 7.5 7.9 V
V
O
Output voltage I
O
= 1 A, V
I
= 9.5 V 7.1 7.5 7.95 V
ΔV
O
Line regulation
V
I
= 9.5 to 25 V 120
mV
V
I
= 10.5 to 20 V 60
ΔV
O
Load regulation I
O
= 20 mA to 2 A 120 mV
I
Q
Quiescent current 8 mA
ΔI
Q
Quiescent current change
I
O
= 20 mA to 1 A 0.5
mA
I
O
= 20 mA, V
I
= 9.5 to 25 V 1.3
ΔV
O
/ΔT Output voltage drift I
O
= 5 mA, T
J
= -55 °C to 150 °C -0.8 mV/°C
eN Output noise voltage B =10 Hz to 100 kHz 52 µV
SVR Supply voltage rejection f = 120 Hz 54 dB
V
I
Operating input voltage I
O
≤ 1.5 A 10.5 V
R
O
Output resistance f = 1 kHz 16 mΩ
I
sc
Short circuit current V
I
= 27 V 500 mA
I
scp
Short circuit peak current 3 A
Table 6. Electrical characteristics of L78S09
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage 8.65 9 9.35 V
V
O
Output voltage I
O
= 1 A, V
I
= 11 V 8.6 9 9.4 V
ΔV
O
Line regulation
V
I
= 11 to 25 V 130
mV
V
I
= 11 to 20 V 65
ΔV
O
Load regulation I
O
= 20 mA to 2 A 130 mV
I
Q
Quiescent current 8 mA
ΔI
Q
Quiescent current change
I
O
= 20mA to 1A 0.5
mA
V
I
= 11 to 25 V, I
O
= 20 mA 1.3
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 60 µV
SVR Supply voltage rejection f = 120 Hz 53 dB
V
I
Operating input voltage I
O
≤ 1.5 A 12 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