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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Copyright © 2005 Unisonic Technologies Co., Ltd
1 of 6
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
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 6
QW-R102-029,A
Embedded System
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