UNISONIC TECHNOLOGIES CO., LTD
LR1118 LINEAR INTEGRATED CIRCUIT
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Copyright © 2012 Unisonic Technologies Co., Ltd QW-R102-029,G
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
(VREF=1.24V). Output consists of PNP power transistor. So that
dropout voltage can be extremely low.
FEATURES
* 2.85V device are suitable for SCSI-2 active termination
* Output current up to 1A
* Adjustable version available.(VREF=1.24V)
* Internal current and thermal limit
* Available in ±1%(at 25℃) and 2% in all temperature range
ORDERING INFORMATION
Ordering Number Package ①
Pin Assignment
②
Packing
Lead Free Halogen Free
LR1118L-xx-AA3-①-② LR1118G-xx-AA3-①-② SOT-223 A: GOI
B: OGI
C: GIO
D: IGO
R: Tape Reel
T: Tube
LR1118L-xx-TA3-①-② LR1118G-xx-TA3-①-② TO-220
LR1118L-xx-TN3-①-② LR1118G-xx-TN3-①-② TO-252
LR1118L-xx-TQ2-①-② LR1118G-xx-TQ2-①-② TO-263
LR1118L-xx-TQ3-①-② LR1118G-xx-TQ3-①-② TO-263-3
LR1118L-xx-S08-①-② LR1118G-xx-S08-①-② SOP-8 GOOIxOOx
Note: 1. Pin assignment: I: VIN O: VOUT G: GND x: NC
2. xx: Output Voltage, refer to Marking Information.
LR1118 LINEAR INTEGRATED CIRCUIT
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MARKING INFORMATION
PACKAGE VOLTAGE CODE MARKING
SOT-223 12:1.2V
15:1.5V
18:1.8V
25:2.5V
2J:2.85V
30:3.0V
33:3.3V
36:3.6V
50:5.0V
12 3
LR1118
Voltage Code Date Code
Pin Code
G: Halogen Free
L: Lead Free
TO-220
TO-252
TO-263
TO-263-3
BLOCK DIAGRAM
+
-
Current
Limit
Therml
Shut Down
Reference
Voltage
VCC
VCC VCC
VOUT
GND
APPLICATION CIRCUIT
LR1118 LINEAR INTEGRATED CIRCUIT
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ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL RATINGS UNIT
DC Input Voltage VIN 15 V
Junction Temperature TJ +125
℃
Operating Temperature TOPR 0 ~ +125 ℃
Storage Temperature TSTG -40 ~ +150 ℃
Note: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied
THERMAL DATA
PARAMETER SYMBOL RATINGS UNIT
Junction to Case
SOT-223
θJC
15
℃/W
SOP-8 20
TO-252 8
TO-220 4
TO-263 4
ELECTRICAL CHARACTERISTICS
(TA=25℃, refer to the test circuits, TJ=-0~125℃, CO=10μF, unless otherwise specified.)
For LR1118-1.2V
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage VOUT VIN=VOUT+1.5V, IOUT=10mA, TJ=25℃1% 1.188 1.2 1.212 V
2% 1.176 1.224
VIN =(VOUT+2V)~15V, IOUT=0 to 1A 1.176 1.2 1.224 V
Line Regulation
ΔVOUT
VIN =(VOUT+2V)~15V, IOUT=0A 0.1 0.6 %
Load Regulation VIN =VOUT+2V, IOUT=0 to 1A 2 3 %
Temperature Stability 0.5 %
Long Term Stability 1000 hrs, TJ=125℃ 0.3 %
Operating Input Voltage VIN I
OUT=100mA 15 V
Quiescent Current ID V
IN≤10V 5 10 mA
Output Current IOUT VIN=VOUT+4.5V, TJ=25℃ 800 1500 mA
Output Noise Voltage eN B=10Hz~10KHz, TJ=25℃ 100 μV
Supply Voltage Rejection SVR IOUT=40mA, f=120Hz, TJ=25℃
VIN=VOUT+2.5V, VRIPPLE=1VPP 60 75 dB
Dropout Voltage VD IOUT= 100mA 0.88 0.98 V
IOUT= 1A 1.10 1.20
Thermal Regulation TA=25℃, 30ms Pulse 0.01 0.10 %/W
LR1118 LINEAR INTEGRATED CIRCUIT
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ELECTRICAL CHARACTERISTICS (Cont.)
For LR1118-1.5V
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage VOUT VIN=VOUT+1.5V, IOUT=10mA, TJ=25℃1% 1.485 1.5 1.515 V
2% 1.470 1.530
VIN =(VOUT+2V)~15V, IOUT=0 to 1A 1.470 1.5 1.530 V
Line Regulation
ΔVOUT
VIN =(VOUT+2V)~15V, IOUT=0A 0.1 0.6 %
Load Regulation VIN =VOUT+2V, IOUT=0 to 1A 2 3 %
Temperature Stability 0.5 %
Long Term Stability 1000 hrs, TJ=125℃ 0.3 %
Operating Input Voltage VIN I
OUT=100mA 15 V
Quiescent Current ID V
IN≤10V 5 10 mA
Output Current IOUT VIN=VOUT+4.5V, TJ=25℃ 800 1500 mA
Output Noise Voltage eN B=10Hz~10KHz, TJ=25℃ 100 μV
Supply Voltage Rejection SVR IOUT=40mA, f=120Hz, TJ=25℃
VIN=VOUT+2.5V, VRIPPLE=1VPP 60 75 dB
Dropout Voltage VD IOUT= 100mA 0.60 0.73 V
IOUT= 1A 0.82 0.95
Thermal Regulation TA=25℃, 30ms Pulse 0.01 0.10 %/W
For LR1118-1.8V
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage VOUT VIN=VOUT+1.5V, IOUT=10mA, TJ=25℃1% 1.782 1.8 1.818 V
2% 1.764 1.836
VIN =(VOUT+2V)~15V, IOUT=0 to 1A 1.764 1.8 1.836 V
Line Regulation
ΔVOUT
VIN =(VOUT+2V)~15V, IOUT=0A 0.1 0.6 %
Load Regulation VIN =VOUT+2V, IOUT=0 to 1A 2 3 %
Temperature Stability 0.5 %
Long Term Stability 1000 hrs, TJ=125℃ 0.3 %
Operating Input Voltage VIN I
OUT=100mA 15 V
Quiescent Current ID V
IN≤10V 5 10 mA
Output Current IOUT VIN=VOUT+4.5V, TJ=25℃ 800 1500 mA
Output Noise Voltage eN B=10Hz~10KHz, TJ=25℃ 100 μV
Supply Voltage Rejection SVR IOUT=40mA, f=120Hz, TJ=25℃
VIN=VOUT+2.5V, VRIPPLE=1VPP 60 75 dB
Dropout Voltage VD IOUT= 100mA 0.32 0.48 V
IOUT= 1A 0.65 0.88
Thermal Regulation TA=25℃, 30ms Pulse 0.01 0.10 %/W
LR1118 LINEAR INTEGRATED CIRCUIT
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ELECTRICAL CHARACTERISTICS (Cont.)
For LR1118-2.5V
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage VOUT VIN=VOUT+1.5V, IOUT=10mA, TJ=25℃1% 2.475 2.5 2.525 V
2% 2.450 2.550
VIN =(VOUT+2V)~15V, IOUT=0 to 1A 2.450 2.5 2.550 V
Line Regulation
ΔVOUT
VIN =(VOUT+2V)~15V, IOUT=0A 0.1 0.6 %
Load Regulation VIN =VOUT+2V, IOUT=0 to 1A 2 3 %
Temperature Stability 0.5 %
Long Term Stability 1000 hrs, TJ=125℃ 0.3 %
Operating Input Voltage VIN I
OUT=100mA 15 V
Quiescent Current ID V
IN≤10V 5 10 mA
Output Current IOUT VIN=VOUT+4.5V, TJ=25℃ 800 1500 mA
Output Noise Voltage eN B=10Hz~10KHz, TJ=25℃ 100 μV
Supply Voltage Rejection SVR IOUT=40mA, f=120Hz, TJ=25℃
VIN=VOUT+2.5V, VRIPPLE=1VPP 60 75 dB
Dropout Voltage VD IOUT= 100mA 0.16 0.25 V
IOUT= 1A 0.56 0.70
Thermal Regulation TA=25℃, 30ms Pulse 0.01 0.10 %/W
For LR1118-2.85V
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage VOUT VIN=VOUT+1.5V, IOUT=10mA, TJ=25℃1% 2.822 2.85 2.878 V
2% 2.793 2.907
VIN =(VOUT+2V)~15V, IOUT=0 to 1A 2.793 2.85 2.907 V
Line Regulation
ΔVOUT
VIN =(VOUT+2V)~15V, IOUT=0A 0.1 0.6 %
Load Regulation VIN =VOUT+2V, IOUT=0 to 1A 2 3 %
Temperature Stability 0.5 %
Long Term Stability 1000 hrs, TJ=125℃ 0.3 %
Operating Input Voltage VIN I
OUT=100mA 15 V
Quiescent Current ID V
IN≤10V 5 10 mA
Output Current IOUT VIN=VOUT+4.5V, TJ=25℃ 800 1500 mA
Output Noise Voltage eN B=10Hz~10KHz, TJ=25℃ 100 μV
Supply Voltage Rejection SVR IOUT=40mA, f=120Hz, TJ=25℃
VIN=VOUT+2.5V, VRIPPLE=1VPP 60 75 dB
Dropout Voltage VD IOUT= 100mA 0.132 0.35 V
IOUT= 1A 0.828 0.91
Thermal Regulation TA=25℃, 30ms Pulse 0.01 0.10 %/W
LR1118 LINEAR INTEGRATED CIRCUIT
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ELECTRICAL CHARACTERISTICS (Cont.)
For LR1118-3.0V
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage VOUT VIN=VOUT+1.5V, IOUT=10mA,TJ=25℃ 2.970 3.0 3.030 V
VIN=(VOUT+2V)~15V, IOUT=0 to 1A 2.940 3.0 3.060 V
Line Regulation
ΔVOUT
VIN=(VOUT+2V)~15V, IOUT=0A 0.1 0.6 %
Load Regulation VIN=VOUT+2V, IOUT=0 to 1A 2 3 %
Temperature Stability 0.5 %
Long Term Stability 1000 hrs, TJ=125℃ 0.3 %
Operating Input Voltage VIN I
OUT=100mA 15 V
Quiescent Current ID V
IN≤10V 5 10 mA
Output Current IOUT VIN=VOUT+4.5V, TJ=25℃ 800 1500 mA
Output Noise Voltage eN B=10Hz ~ 10KHz, TJ=25℃ 100 μV
Supply Voltage Rejection SVR IOUT=40mA, f=120Hz, TJ=25℃
VIN=VOUT+2.5V, VRIPPLE=1VPP 60 75 dB
Dropout Voltage VD IOUT= 100mA 0.11 0.26 V
IOUT= 1A 0.45 0.65
Thermal Regulation TA=25℃, 30ms Pulse 0.01 0.10 %/W
For LR1118-3.3V
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage VOUT VIN=VOUT+1.5V, IOUT=10mA,TJ=25℃ 3.267 3.3 3.333 V
VIN=(VOUT+2V)~15V, IOUT=0 to 1A 3.234 3.3 3.366 V
Line Regulation
ΔVOUT
VIN=(VOUT+2V)~15V, IOUT=0A 0.1 0.6 %
Load Regulation VIN=VOUT+2V, IOUT=0 to 1A 2 3 %
Temperature Stability 0.5 %
Long Term Stability 1000 hrs, TJ=125℃ 0.3 %
Operating Input Voltage VIN I
OUT=100mA 15 V
Quiescent Current ID V
IN≤10V 5 10 mA
Output Current IOUT VIN=VOUT+4.5V, TJ=25℃ 800 1500 mA
Output Noise Voltage eN B=10Hz ~ 10KHz, TJ=25°C 100 μV
Supply Voltage Rejection SVR IOUT=40mA, f=120Hz, TJ=25℃
VIN=VOUT+2.5V, VRIPPLE=1VPP 60 75 dB
Dropout Voltage VD IOUT= 100mA 0.11 0.26 V
IOUT= 1A 0.45 0.65
Thermal Regulation TA=25℃, 30ms Pulse 0.01 0.10 %/W
LR1118 LINEAR INTEGRAT ED CIRCUIT
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ELECTRICAL CHARACTERISTICS (Cont.)
For LR1118-3.6V
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage VOUT VIN=VOUT+1.5V, IOUT=10mA,TJ=25℃ 3.564 3.6 3.636 V
VIN=(VOUT+2V)~15V, IOUT=0 to 1A 3.528 3.6 3.672 V
Line Regulation
ΔVOUT
VIN=(VOUT+2V)~15V, IOUT=0A 0.1 0.6 %
Load Regulation VIN=VOUT+2V, IOUT=0 to 1A 2 3 %
Temperature Stability 0.5 %
Long Term Stability 1000 hrs, TJ=125℃ 0.3 %
Operating Input Voltage VIN I
OUT=100mA 15 V
Quiescent Current ID V
IN≤10V 5 10 mA
Output Current IOUT VIN=VOUT+4.5V, TJ=25℃ 800 1500 mA
Output Noise Voltage eN B=10Hz ~ 10KHz, TJ=25℃ 100 μV
Supply Voltage Rejection SVR IOUT=40mA, f=120Hz, TJ=25℃
VIN=VOUT+2.5V, VRIPPLE=1VPP 60 75 dB
Dropout Voltage VD IOUT= 100mA 0.19 0.31 V
IOUT= 1A 0.81 0.89
Thermal Regulation TA=25℃, 30ms Pulse 0.01 0.10 %/W
For LR1118-5.0V
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage VOUT VIN=VOUT+1.5V, IOUT=10mA,TJ=25℃ 4.95 5.0 5.05 V
VIN=(VOUT+2V)~15V, IOUT=0 to 1A 4.90 5.0 5.10 V
Line Regulation
ΔVOUT
VIN=(VOUT+2V)~15V, IOUT=0A 0.1 0.6 %
Load Regulation VIN=VOUT+2V, IOUT=0 to 1A 2 3 %
Temperature Stability 0.5 %
Long Term Stability 1000 hrs, TJ=125℃ 0.3 %
Operating Input Voltage VIN I
OUT=100mA 15 V
Quiescent Current ID V
IN≤10V 5 10 mA
Output Current IOUT VIN=VOUT+4.5V, TJ=25℃ 800 1500 mA
Output Noise Voltage eN B=10Hz ~ 10KHz, TJ=25℃ 100 μV
Supply Voltage Rejection SVR IOUT=40mA, f=120Hz, TJ=25℃
VIN=VOUT+2.5V, VRIPPLE=1VPP 60 75 dB
Dropout Voltage VD IOUT= 100mA 0.11 0.26 V
IOUT= 1A 0.45 0.62
Thermal Regulation TA=25℃, 30ms Pulse 0.01 0.10 %/W
LR1118 LINEAR INTEGRAT ED CIRCUIT
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TYPICAL CHARACTERISTICS
Reference Voltage vs. Temperature Output Voltage vs. Temperautre
-75
Junction Temperature (℃)Junction Temperature (℃)
-75
3.10
1.200
1.205
1.210
1.215
1.220
1.225
1.230
1.235
1.240
1.245
1.250
-50 -25 0 25 50 75 100125150175
3.15
3.20
3.25
3.30
3.35
3.40
3.45
3.50
3.55
3.60
-50 -25 0 25 50 75 100 125 150 175
VOUT=3.3V
VOUT SET WITH 1% RESISTORS
Maximum Power Dissipation
25 65 105
4
6
8
10
Case Temperature(℃)
TO-263 & TO-252
SOT-223
2
45 85 125
0
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
