UNISONIC TECHNOLOGIES CO., LTD
LR1118
LOW DROP POSITIVE
VOLTAGE REGULATORS
DESCRIPTION
The UTC
LR1118
is a low drop voltage regulator able to provide
up to 1A of output current, available also for adjustable version
(V
REF
=1.24V). Output consists of pnp power transistor. So that
dropout voltage can be extremely low.
LINEAR INTEGRATED CIRCUIT
1
SOT-223
SOP-8
1
1
TO-220
TO-252
FEATURES
* 2.85V device are suitable for SCSI-2 active termination
* Output current up to 1A
* Adjustable version available.(V
REF
=1.24V)
* Internal current and thermal limit
* Available in
±1%(at
25°C) and 2% in all temperature range
1
1
TO-263
1
TO-263-3
SOT-89
*Pb-free plating product number: LR1118L
ORDERING INFORMATION
Order Number
Normal
Lead Free Plating
LR1118-xx-AA3-①-②
LR1118L-xx-AA3-①-②
LR1118-xx-AB3-①-②
LR1118L-xx-AB3-①-②
LR1118-xx-TA3-①-②
LR1118L-xx-TA3-①-②
LR1118-xx-TN3-①-②
LR1118L-xx-TN3-①-②
LR1118-xx-TQ2-①-②
LR1118L-xx-TQ2-①-②
LR1118-xx-TQ3-①-②
LR1118L-xx-TQ3-①-②
LR1118-xx-S08-①-②
LR1118L-xx-S08-①-②
Package
SOT-223
SOT-89
TO-220
TO-252
TO-263
TO-263-3
SOP-8
①
Pin Assignment
A: GOI
B: OGI
C: GIO
D: IGO
GOOIxOOx
②
Packing
R: Tape Reel
T: Tube
Note: 1. Pin assignment: I:Vin O:Vout G:GND x:NC
2. xx: Output Voltage, refer to Marking Information.
LR 1118L-xx-AA3-
1
-
2
(1)Packing Type
(2)Pin Assignment
(3)Package Type
(4)Output Voltage Code
(5)Lead Plating
(1) R: Tape Reel, T: Tube
(2) refer to Pin Assignment
(3) AA3: SOT-223, AB3: SOT-89, TA3: TO-220
TN 3: TO-252, TQ2: TO-263, TQ3: TO-263-3,
S 08: SOP-8
(4) xx: refer to Marking Information
(5) L: Lead Free Plating Blank: Pb/Sn
,
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1 of 6
QW-R102-029,A
LR1118
MARKING INFORMATION
PACKAGE
VOLTAGE CODE
LINEAR INTEGRATED CIRCUIT
MARKING
VOLTAGE CODE
DATE CODE
SOT-89
R1118
1
2
3
PIN CODE
LEAD PLATING
SOT-223
18
25
30
33
50
:1.8V
:2.5V
:3.0V
:3.3V
:5.0V
LR1118
VOLTAGE
CODE
LEAD PLATING
PIN CODE
DATE CODE
1
2
3
TO-220
TO-252
TO-263
TO-263-3
UTC
LR1118
VOLTAGE
CODE
LEAD PLATING
PIN CODE
DATE CODE
1
2
3
THERMAL DATA
PARAMETER
SOT-223
SOT-89
SOP-8
TO-252
TO-220
TO-263
SYMBOL
RATINGS
15
15
20
8
4
4
UNIT
Thermal Resistance Junction-Case
θ
JC
°C/W
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QW-R102-029,A
LR1118
BLOCK DIAGRAM
LINEAR INTEGRATED CIRCUIT
V
CC
V
CC
Reference
Voltage
+
-
Current
Limit
Therml
Shut Down
V
CC
Vo
UT
GND
APPLICATION CIRCUIT
V
IN
C
IN
10μF
LR1118
C
OUT
10μF
V
OUT
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QW-R102-029,A
LR1118
ABSOLUTE MAXIMUM RATINGS
PARAMETER
LINEAR INTEGRATED CIRCUIT
SYMBOL
RATINGS
UNIT
DC Input Voltage
V
IN
15
V
Operating Junction Temperature
T
OPR
0 ~ +125
°C
Storage Temperature
T
STG
-40 ~ +150
°C
Note: 1. The device may be damaged while beyond Absolute Maximum Rating.
2. The device is guaranteed to meet performance specifications within 0°C~+70°C operation temperature
range, and is assured by design from 0°C~+125°C.
ELECTRICAL CHARACTERISTICS
(Ta=25°C, refer to the test circuits, T
J
=-0~125°C, C
O
=10µF, unless otherwise specified.)
For LR1118-1.8V
PARAMETER
Output Voltage
Output Voltage
Line Regulation
Load Regulation
Temperature Stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
Output Noise Voltage
Supply Voltage Rejection
Dropout Voltage
Thermal Regulation
For LR1118-2.5V
PARAMETER
Output Voltage
Output Voltage
Line Regulation
Load Regulation
Temperature Stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
Output Noise Voltage
Supply Voltage Rejection
Dropout Voltage
Thermal Regulation
SYMBOL
V
OUT
V
OUT
∆V
OUT
∆V
OUT
∆V
OUT
∆V
OUT
V
IN
I
D
I
OUT
eN
SVR
V
D
SYMBOL
V
OUT
V
OUT
∆V
OUT
∆V
OUT
∆V
OUT
∆V
OUT
V
IN
I
D
I
OUT
eN
SVR
V
D
TEST CONDITIONS
V
IN
=V
OUT
+1.5V, I
OUT
=10mA,
T
J
=25°C
V
IN
=(V
OUT
+2V)~15V, I
OUT
=0 to 1A
V
IN
=(V
OUT
+2V)~15V, I
OUT
=0A
V
IN
=V
OUT
+2V, I
OUT
=0 to 1A
1000 hrs, T
J
=125°C
I
OUT
=100mA
V
IN
≤10V
V
IN
=V
OUT
+4.5V, T
J
=25°C
B=10Hz~10KHz, T
J
=25°C
I
OUT
=40mA, f=120Hz, T
J
=25°C
V
IN
=V
OUT
+2.5V, V
RIPPLE
=1Vpp
I
OUT
= 100mA
I
OUT
= 1A
Ta=25°C, 30ms Pulse
TEST CONDITIONS
V
IN
=V
OUT
+1.5V, I
OUT
=10mA,
T
J
=25°C
V
IN
=(V
OUT
+2V)~15V, I
OUT
=0 to 1A
V
IN
=(V
OUT
+2V)~15V, I
OUT
=0A
V
IN
=V
OUT
+2V, I
OUT
=0 to 1A
1000 hrs, T
J
=125°C
I
OUT
=100mA
V
IN
≤10V
V
IN
=V
OUT
+4.5V, T
J
=25°C
B=10Hz~10KHz, T
J
=25°C
I
OUT
=40mA, f=120Hz, T
J
=25°C
V
IN
=V
OUT
+2.5V, V
RIPPLE
=1Vpp
I
OUT
= 100mA
I
OUT
= 1A
Ta=25°C, 30ms Pulse
MIN
1.782
1.764
1.764
TYP
1.8
1.8
0.1
2
0.5
0.3
5
950
100
75
0.32
0.65
0.01
MIN
2.475
2.450
2.45
TYP
2.5
2.5
0.1
2
0.5
0.3
5
950
100
75
0.16
0.56
0.01
0.25
0.7
0.10
0.48
0.88
0.10
MAX
2.525
2.550
2.55
0.6
3
MAX
1.818
1.836
1.836
0.6
3
UNIT
V
V
%
%
%
%
V
mA
mA
µV
dB
V
V
%/W
UNIT
V
V
%
%
%
%
V
mA
mA
µV
dB
V
V
%/W
1%
2%
800
60
15
10
1200
1%
2%
800
60
15
10
1200
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QW-R102-029,A
LR1118
ELECTRICAL CHARACTERISTICS (Cont.)
For LR1118-3.0V
PARAMETER
Output Voltage
Output Voltage
Line Regulation
Load Regulation
Temperature Stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
Output Noise Voltage
Supply Voltage Rejection
Dropout Voltage
Thermal Regulation
For LR1118-3.3V
PARAMETER
Output Voltage
Output Voltage
Line Regulation
Load Regulation
Temperature Stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
Output Noise Voltage
SYMBOL
V
OUT
V
OUT
∆V
OUT
∆V
OUT
∆V
OUT
∆V
OUT
V
IN
I
D
I
OUT
eN
SVR
V
D
LINEAR INTEGRATED CIRCUIT
TEST CONDITIONS
V
IN
=V
OUT
+1.5V, I
OUT
=10mA,T
J
=25°C
V
IN
=(V
OUT
+2V)~15V, I
OUT
=0 to 1A
V
IN
=(V
OUT
+2V)~15V, I
OUT
=0A
V
IN
=V
OUT
+2V, I
OUT
=0 to 1A
1000 hrs, T
J
=125°C
I
OUT
=100mA
V
IN
≤10V
V
IN
=V
OUT
+4.5V, T
J
=25°C
B=10Hz ~ 10KHz, T
J
=25°C
I
OUT
=40mA, f=120Hz, T
J
=25°C
V
IN
=V
OUT
+2.5V, V
RIPPLE
=1Vpp
I
OUT
= 100mA
I
OUT
= 1A
Ta=25°C, 30ms Pulse
MIN
2.970
2.940
TYP
3.0
3.0
0.1
2
0.5
0.3
5
950
100
75
0.11
0.45
0.01
MAX
3.030
3.060
0.6
3
800
60
15
10
1200
UNIT
V
V
%
%
%
%
V
mA
mA
µV
dB
0.26
0.65
0.10
MAX
3.333
3.366
0.6
3
V
V
%/W
UNIT
V
V
%
%
%
%
V
mA
mA
µV
dB
SYMBOL
TEST CONDITIONS
V
OUT
V
IN
=V
OUT
+1.5V, I
OUT
=10mA,T
J
=25°C
V
OUT
V
IN
=(V
OUT
+2V)~15V, I
OUT
=0 to 1A
∆V
OUT
V
IN
=(V
OUT
+2V)~15V, I
OUT
=0A
∆V
OUT
V
IN
=V
OUT
+2V, I
OUT
=0 to 1A
∆V
OUT
∆V
OUT
1000 hrs, T
J
=125°C
V
IN
I
OUT
=100mA
I
D
V
IN
≤10V
I
OUT
V
IN
=V
OUT
+4.5V, T
J
=25°C
eN
B=10Hz ~ 10KHz, T
J
=25°C
I
OUT
=40mA, f=120Hz, T
J
=25°C
Supply Voltage Rejection
SVR
V
IN
=V
OUT
+2.5V, V
RIPPLE
=1Vpp
I
OUT
= 100mA
Dropout Voltage
V
D
I
OUT
= 1A
Thermal Regulation
Ta=25°C, 30ms Pulse
For LR1118-5.0V
PARAMETER
Output Voltage
Output Voltage
Line Regulation
Load Regulation
Temperature Stability
Long Term Stability
Operating Input Voltage
Quiescent Current
Output Current
Output Noise Voltage
SYMBOL
TEST CONDITIONS
V
OUT
V
IN
=V
OUT
+1.5V, I
OUT
=10mA,T
J
=25°C
V
OUT
V
IN
=(V
OUT
+2V)~15V, I
OUT
=0 to 1A
∆V
OUT
V
IN
=(V
OUT
+2V)~15V, I
OUT
=0A
∆V
OUT
V
IN
=V
OUT
+2V, I
OUT
=0 to 1A
∆V
OUT
∆V
OUT
1000 hrs, T
J
=125°C
V
IN
I
OUT
=100mA
I
D
V
IN
≤10V
I
OUT
V
IN
=V
OUT
+4.5V, T
J
=25°C
eN
B=10Hz ~ 10KHz, T
J
=25°C
I
OUT
=40mA, f=120Hz, T
J
=25°C
Supply Voltage Rejection
SVR
V
IN
=V
OUT
+2.5V, V
RIPPLE
=1Vpp
I
OUT
= 100mA
Dropout Voltage
V
D
I
OUT
= 1A
Thermal Regulation
Ta=25°C, 30ms Pulse
MIN
3.267
3.234
TYP
3.3
3.3
0.1
2
0.5
0.3
5
950
100
75
0.11
0.45
0.01
800
60
15
10
1200
0.26
0.65
0.10
MAX
5.05
5.10
0.6
3
V
V
%/W
UNIT
V
V
%
%
%
%
V
mA
mA
µV
dB
MIN
4.95
4.90
TYP
5.0
5.0
0.1
2
0.5
0.3
5
950
100
75
0.11
0.45
0.01
800
60
15
10
1200
0.26
0.62
0.10
V
V
%/W
5 of 6
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QW-R102-029,A
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