Datasheet

LFxxAB, LFxxC Electrical characteristics
Doc ID 2574 Rev 26 33/50
Refer to the test circuits, T
J
= 25 °C, C
I
= 0.1 µF, C
O
= 2.2 µF unless otherwise specified.
Table 29. Electrical characteristics for LF120AB
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
O
Output voltage
I
O
= 50 mA, V
I
= 15 V 11.88 12 12.12
V
I
O
= 50 mA, V
I
= 15 V, T
a
= -25 to 85°C 11.76 12.24
V
I
Operating input voltage I
O
= 500 mA 16 V
I
O
Output current limit 1 A
ΔV
O
Line regulation V
I
= 13 to 16 V, I
O
= 5 mA 12 60 mV
ΔV
O
Load regulation V
I
= 13.3 V, I
O
= 5 to 500 mA 12 60 mV
I
d
Quiescent current
V
I
= 13 to 16V, I
O
= 0mA
ON MODE
0.7 1.5
mA
V
I
= 13.3 to 16V,
I
O
= 500mA
12
V
I
= 13 V OFF MODE 70 140 µA
SVR Supply voltage rejection I
O
= 5 mA, V
I
= 14 ± 1 V
f = 120 Hz 69
dBf = 1 kHz 64
f = 10 kHz 54
eN Output noise voltage B = 10 Hz to 100 kHz 50 µV
V
d
Dropout voltage
I
O
= 200 mA 0.2 0.35
V
I
O
= 500 mA 0.4 0.7
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
= 13 V, V
C
= 6 V 10 µA
C
O
Output bypass
capacitance
ESR = 0.1 to 10 Ω, I
O
= 0 to 500 mA 2 10 µF