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LK112M55TR
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
Pin conf
iguration
LK112
4/18
DocI
D736
2 Rev 17
2 Pin
configu
ration
Figure 2. Pin connection (t
op view)
Ta
b
l
e
2
.
Pin descr
iptio
n
Pin n°
Symbol
Note
1S
H
D
N
Shutd
own input d
isables the
regulator wh
en it is con
nected to
GND or to posi
tive
volt
age less
than 0.6
V
2G
N
D
Ground
pin intern
ally con
nected to the
die att
ach flag
to decrea
se the tot
al therm
al
resist
ance and incr
ease the
pack
age abili
ty to dis
sipate po
wer
3
Byp
ass
Bypa
ss pin w
ith 0.1 µF to i
mprove th
e noise p
erformanc
e
4
OUT
Output
port
5
IN
Input po
rt
DocID7362 Rev 17
5/18
LK112
Max
imum ratings
18
3 Maximum
ratings
T
able 3. Abs
olute maxim
um ratings
Symbol
Parameter
V
alue
Unit
V
I
DC input
voltage
16
V
V
SHDN
DC input
voltage
16
V
I
O
Output cu
rrent
Internally
limited
T
STG
S
torag
e temperat
ure rang
e
-55 to 1
50
°C
T
OP
Operat
ing junction
temperatu
re range
-40 to 125
°C
T
a
ble 4. Therma
l dat
a
Symbol
Param
eter
SOT23-5L
Unit
R
thJC
Ther
mal
resis
tance
junct
ion
-case
81
°C/W
R
thJA
Ther
mal
resis
tance
junct
ion
-ambi
ent
255
°C/W
Ele
ctri
cal
charac
ter
isti
cs
LK1
12
6/18
DocI
D736
2 Rev 17
4 Electrical
charac
teristics
T
J
= 25
°C, V
IN
= V
OUT
+ 1 V
, I
OUT
= 0 mA,
V
SHDN
= 1.8 V
, C
I
= 1 µ
F
, C
O
= 2.2 µ
F
,
C
BYP
ASS
= 0.1 µ
F
unless
otherwis
e spe
cified.
Note:
For vers
ion with o
utput v
oltage less than
2 V
, V
IN
= 2.4 V
.
T
able 5.
LK1
12 elec
trica
l ch
aract
eri
stic
s
Symbol
Parameter
T
est cond
itions
Min.
T
yp.
Max.
Unit
I
q
Quiesc
ent cu
rren
t
On mo
de (excep
t I
SHDN
)
175
250
µA
Of
f mode, V
I
= 8V
, V
SHDN
= 0V
0
0.1
µA
V
O
Output
volt
age
I
O
= 30mA
-2
+2
%
Δ
V
O
Line r
egu
lati
on
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
Δ
V
O
Load r
egu
lati
on
I
O
= 1 to 60
mA
15
30
mV
I
O
= 1 to 15
0mA
25
90
mV
V
d
Dropou
t volt
age
I
O
= 60mA
(1)
0.17
0.24
V
I
O
= 150mA
(1)
0.29
0.35
V
I
O
Output
current
limit
150
mA
SVR
Supply vo
ltage reje
ction
V
I
= V
O
+1.5V
, C
BYP
= 0.1µF
C
O
= 10µF
, f = 400
Hz, I
O
= 30mA
55
dB
eN
Output
noise
volta
ge
B= 10
Hz to 80kHz, C
BYP
= 0.1µ
F
C
O
= 10µF
, V
I
= V
O
+1.5V
, I
O
= 60mA
30
µVrms
I
SHDN
Shutdo
wn i
nput
cu
rren
t
V
SHDN
= 1.8V
, out
put on
12
35
µA
V
SHDN
Shutd
own input logic
Output
on
1.8
V
Output
off
0.6
Δ
V
O
/T
J
Output
volt
age
tempera
ture coef
ficient
I
O
= 10mA
0.09
mV/°C
1.
For versions with output voltage more
than 2.1 V only
.
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
LK112M55TR
Mfr. #:
Buy LK112M55TR
Manufacturer:
STMicroelectronics
Description:
LDO Voltage Regulators Lo noise Lo drop Vltg reg
Lifecycle:
New from this manufacturer.
Delivery:
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