Datasheet

Electrical characteristics LK112Sxx
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4 Electrical characteristics
Table 5. Electrical characteristics for LK112S (T
J
= 25 °C, V
IN
=V
OUT
+1 V
(1)
, I
OUT
= 0mA,
V
SHDN
= 1.8 V, C
I
= 1 µF, C
O
= 2.2 µF, C
BYPASS
= 0.1 µF unless otherwise specified)
1. For version with output voltage less than 2V V
IN
=2.4V
Symbol Parameter Test conditions Min. Typ. Max. Unit
I
d
Quiescent current
ON MODE (except I
SHDN
)175250µA
OFF MODE, V
I
= 8V, V
SHDN
= 0V 0 0.1 µA
V
O
Output voltage I
O
= 30mA (see table)
ΔV
O
Line regulation
V
I
= V
O
+1V to V
O
+6V, V
O
5.6V 0.7 20 mV
V
I
= V
O
+1V to V
O
+6V, V
O
> 5.6V 0.8 40 mV
ΔV
O
Load regulation
I
O
= 1 to 60mA 15 30 mV
I
O
= 1 to 200mA 30 90 mV
V
d
Dropout voltage
I
O
= 60 mA
(2)
2. Only for version with output voltage more than 2.1V
0.17 0.24 V
I
O
= 200 mA
(2)
0.35 0.5 V
I
SC
Short circuit current 200 mA
SVR Supply voltage rejection
V
I
= V
O
+1.5V, C
BYP
= 0.1µF
C
O
= 10µF, f = 400Hz, I
O
= 30mA
55 dB
eN Output noise voltage
B= 10Hz to 80kHz, C
BYP
= 0.1µF
C
O
= 10µF, V
I
= V
O
+1.5V, I
O
= 60mA
30 µVrms
I
SHDN
Shutdown input current V
SHDN
= 1.8V, Output ON 12 35 µA
V
SHDN
Shutdown input logic
Output ON 1.8
V
Output OFF 0.6
ΔV
O
/T
J
Output voltage
temperature coefficient
I
O
= 10mA 0.09 mV/°C