Datasheet

Electrical characteristics L4931
20/38 DocID4340 Rev 18
(Refer to the test circuits, T
A
= 25 °C, C
I
= 0.1 µF, C
O
= 2.2 µF unless otherwise specified).
Table 14. L4931ABxx120 electrical characteristics
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage
I
O
= 5 mA, V
I
= 14 V 11.88 12 12.12
V
I
O
= 5 mA, V
I
= 14 V, T
A
=-25 to 85 °C 11.76 12.24
V
I
Operating input voltage I
O
= 250 mA 20 V
I
out
Output current limit 300 mA
ΔV
O
Line regulation V
I
= 12.8 to 20 V, I
O
= 0.5 mA 4 20 mV
ΔV
O
Load regulation
(1)
V
I
= 13 V, I
O
= 0.5 to 250 mA 3 15 mV
I
d
Quiescent current
ON mode
V
I
= 13 to 20 V, I
O
= 0 mA 0.8 1.6
mA
V
I
= 13 to 20 V, I
O
= 250 mA 4.5 7
OFF mode V
I
= 6 V 90 180 µA
SVR Supply voltage rejection
I
O
= 5 mA
V
I
= 14 ± 1 V
f = 120 Hz 64
dBf = 1 kHz 61
f = 10 kHz 55
eN Output noise voltage B = 10 Hz to 100 kHz 50 µV
V
d
Dropout voltage
(1)
I
O
= 250 mA 0.4 0.6 V
I
O
= 250 mA, T
A
= -40 to 125 °C 0.8 V
V
IL
Control input logic low T
A
= -40 to 125 °C 0.8 V
V
IH
Control input logic high T
A
= -40 to 125 °C 2 V
I
I
Control input current V
I
= 6 V, V
C
= 6 V 10 µA
C
O
Output bypass
capacitance
ESR = 0.1 to 10 Ω, I
O
= 0 to 250 mA 2 10 µF
1. For SO-8 package the maximum limit of load regulation and dropout should be increased by 20 mV.