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LK112SM21TR Scheda tecnica(PDF) 6 Page - STMicroelectronics

Il numero della parte LK112SM21TR
Spiegazioni elettronici  Low noise low drop voltage regulator with shutdown function
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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Electrical characteristics
LK112Sxx
6/17
4
Electrical characteristics
Table 5.
Electrical characteristics for LK112S (TJ = 25 °C, VIN=VOUT+1 V
(1), I
OUT = 0mA,
VSHDN = 1.8 V, CI = 1 µF, CO = 2.2 µF, CBYPASS = 0.1 µF unless otherwise specified)
1.
For version with output voltage less than 2V VIN=2.4V
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
Id
Quiescent current
ON MODE (except ISHDN)175
250
µA
OFF MODE, VI = 8V, VSHDN = 0V
0
0.1
µA
VO
Output voltage
IO = 30mA
(see table)
ΔVO
Line regulation
VI = VO+1V to VO+6V, VO ≤ 5.6V
0.7
20
mV
VI = VO+1V to VO+6V, VO > 5.6V
0.8
40
mV
ΔVO
Load regulation
IO = 1 to 60mA
15
30
mV
IO = 1 to 200mA
30
90
mV
Vd
Dropout voltage
IO = 60 mA
(2)
2.
Only for version with output voltage more than 2.1V
0.17
0.24
V
IO = 200 mA
(2)
0.35
0.5
V
ISC
Short circuit current
200
mA
SVR
Supply voltage rejection
VI = VO+1.5V, CBYP = 0.1µF
CO = 10µF, f = 400Hz, IO = 30mA
55
dB
eN
Output noise voltage
B= 10Hz to 80kHz, CBYP = 0.1µF
CO = 10µF, VI = VO+1.5V, IO = 60mA
30
µVrms
ISHDN
Shutdown input current
VSHDN = 1.8V, Output ON
12
35
µA
VSHDN Shutdown input logic
Output ON
1.8
V
Output OFF
0.6
ΔVO/TJ
Output voltage
temperature coefficient
IO = 10mA
0.09
mV/°C


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