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LR1108G-18-K08-3030-R [UTC]

Fixed Positive LDO Regulator,;
LR1108G-18-K08-3030-R
型号： LR1108G-18-K08-3030-R
厂家： Unisonic Technologies    Unisonic Technologies
描述：

Fixed Positive LDO Regulator,

输出元件 调节器
文件： 总9页 (文件大小：291K)
中文：  中文翻译
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UNISONIC TECHNOLOGIES CO., LTD  
LR1108/E  
CMOS IC  
1A FAST ULTRA LOW  
DROPOUT LINEAR  
REGULATOR  
1
1
SOT-223  
3
TO-252  
4
5
DESCRIPTION  
The UTC LR1108/E is an ultra low-dropout linear regulators.  
3
2
2
1
Wide output voltage range options are available. The fast  
response characteristic to make UTC LR1108/E suitable for low  
voltage microprocessor application. The low quiescent current  
operation and low dropout quality caused by the CMOS process.  
The UTC LR1108/E has ultra low dropout voltage  
300mV at 1A load current typically.  
1
SOT-23  
SOT-25  
1
(EIAJ SC-59)  
The ground pin current is typically 150uA at 1mA load current.  
1
ERROR Flag: When the output voltage drops 10% below  
nominal value Error flag goes low.  
DFN3030-8  
SOT-89  
SET/ADJ Mode (for LR1108): Connect an external resistive voltage-divider from VOUT to this pin to set the  
output voltage from 1.145V to 5V.  
Output Voltage Precision: Multiple output voltage options are available and ranging from 1.2V ~ 5.0V at room  
temperature with a guaranteed accuracy of ±1.5%, and ±3.0% when varying line, load and temperature.  
FEATURES  
* Ultra Low Dropout Voltage  
* Low Ground Pin Current  
* 0.65% Load Regulation  
* The Guaranteed Output Current is 1A DC  
* Output Voltage Accuracy ± 1.5%  
*ERROR Flag Indicates Output Status  
* Sense option improves better load regulation  
* Low Output Capacitor Required  
* Over temperature Protection And Over current  
Protection  
www.unisonic.com.tw  
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Copyright © 2018 Unisonic Technologies Co., Ltd  
QW-R102-031.V  
LR1108/E  
CMOS IC  
ORDERING INFORMATION  
Ordering Number  
Pin Assignment  
Package  
Packing  
Lead Free  
Halogen Free  
A: GOI  
B: OGI  
C: GIO  
D: IGO  
LR1108L-xx-AA3--R  
LR1108L-xx-AB3--R  
LR1108L-xx-TN3--R  
LR1108G-xx-AA3--R  
SOT-223  
SOT-89  
TO-252  
Tape Reel  
LR1108G-xx-AB3--R  
LR1108G-xx-TN3--R  
1: GIO  
3: GOI  
5: OGI  
6: IGO  
LR1108L-xx-AE3--R  
LR1108G-xx-AE3--R  
SOT-23  
Tape Reel  
LR1108L-xx-AF5-R  
LR1108EL-xx-AF5-R  
LR1108G-xx-AF5-R  
LR1108EG-xx-AF5-R  
SOT-25  
SOT-25  
I
I
G
G
S
E
O
O
-
-
-
-
-
-
I
Tape Reel  
Tape Reel  
Tape Reel  
SD  
SD  
LR1108L-xx-K08-3030-R LR1108G-xx-K08-3030-R DFN3030-8 O N ADJ G  
N N  
SD  
Note: Pin Assignment: I:VIN O:VOUT G:GND SD: SD E: ERROR S：SET/ADJ  
UNISONIC TECHNOLOGIES CO., LTD  
2 of 9  
QW-R102-031.V  
www.unisonic.com.tw  
LR1108/E  
CMOS IC  
MARKING INFORMATION  
PACKAGE  
VOLTAGE CODE  
MARKING  
SOT-223  
SOT-89  
SOT-23  
L: Lead Free  
G: Halogen Free  
SPXX  
Voltage Code  
12: 1.2V  
15: 1.5V  
18: 1.8V  
25: 2.5V  
2J: 2.85V  
33: 3.3V  
50: 5.0V  
SOT-25  
(LR1108E)  
SOT-25  
(LR1108)  
TO-252  
DFN3030-8  
UNISONIC TECHNOLOGIES CO., LTD  
3 of 9  
QW-R102-031.V  
www.unisonic.com.tw  
LR1108/E  
CMOS IC  
PIN DESCRIPTION  
For SOT-223/SOT-89/TO-252 Package  
PIN CODE & NO  
PIN NAME  
I/O  
O
DESCRIPTION  
DESCRIPTION  
A
2
1
3
B
1
2
3
C
3
1
2
D
3
2
1
VOUT  
GND  
VIN  
Output Voltage  
Ground  
Input Supply  
For SOT-23 Package  
PIN CODE & NO  
PIN NAME  
I/O  
O
1
1
2
3
3
1
3
2
5
2
3
1
6
2
1
3
GND  
VIN  
Ground  
Input Supply  
Output Voltage  
VOUT  
For SOT-25 Package  
PIN NO  
PIN NAME  
I/O  
DESCRIPTION  
1
2
VIN  
Input supply  
Ground  
GND  
3
I
Active low shutdown input.  
SD  
ERROR flag, active low; when the output dropout of regulation due to low  
ERROR  
(For LR1108E)  
O
input voltage, the LR1108E produces a logic low signal at the ERROR  
4
5
pin.  
SET/ADJ  
(For LR1108)  
VOUT  
Voltage-Setting Input. Connect an external resistive voltage-divider from  
I
VOUT to this pin to set the output voltage. Connect to GND for Preset output  
O
Output voltage  
For DFN3030-8 Package  
PIN NO  
1
PIN NAME  
VOUT  
I/O  
O
DESCRIPTION  
Output voltage  
2, 6, 7  
NC  
Voltage-Setting Input. Connect an external resistive voltage-divider from  
OUT to this pin to set the output voltage.  
3
ADJ  
I
I
V
4
5
8
GND  
SD  
Ground  
Active high Enable input.  
Input supply  
VIN  
UNISONIC TECHNOLOGIES CO., LTD  
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QW-R102-031.V  
www.unisonic.com.tw  
LR1108/E  
CMOS IC  
BLOCK DIAGRAM  
VIN  
SD  
VOUT  
ERROR  
GND  
LR1108E  
VIN  
SD  
VOUT  
SET/ADJ  
80mV  
GND  
LR1108  
UNISONIC TECHNOLOGIES CO., LTD  
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QW-R102-031.V  
www.unisonic.com.tw  
LR1108/E  
CMOS IC  
ABSOLUTE MAXIMUM RATINGS  
PARAMETER  
SYMBOL  
VIN  
RATINGS  
2.5 ~ 7.0  
UNIT  
V
Input Voltage (Operating) (Note 10)  
Shutdown Input Voltage  
IOUT (Survival)  
VIN(SHDN)  
-0.3 ~ VIN+0.3  
V
Short Circuit Protected  
VIN+0.3  
V
A
Maximum Voltage for ERROR Pin  
Maximum Operating Current (DC)  
Power Dissipation (Note 2)  
Junction Temperature  
1
PD  
TJ  
Internally Limited  
+150  
°C  
°C  
°C  
Operating Temperature  
TOPR  
TSTG  
-40 ~ +125  
-65 ~ +150  
Storage Temperature  
Note: 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  
165  
179  
325  
260  
112  
90  
UNIT  
°C/W  
SOT-223  
SOT-89  
SOT-23  
SOT-25  
TO-252  
Junction to Ambient  
θJA  
DFN3030-8  
SOT-223  
SOT-89  
SOT-23  
SOT-25  
TO-252  
15  
47  
130  
110  
12  
Junction to Case  
θJC  
°C/W  
DFN3030-8  
16  
ELECTRICAL CHARACTERISTICS  
Limits in standard typeface are for TJ = 25°C, and limits in boldface type apply over the full operating temperature  
range. (TJ = 25°C, VIN = VO(NOM) + 1V, IL = 10mA, COUT = 22μF, VSD = VIN-0.3V, unless otherwise specified.)  
PARAMETER  
Input Voltage Range  
SYMBOL  
VIN  
TEST CONDITIONS  
MIN  
TYP  
MAX  
6.0  
UNIT  
V
0mA ≤ IL ≤ 1A  
-1.5  
-3  
+1.5  
+3  
Output Voltage Tolerance (Note 4)  
VOUT  
0
%
VOUT +1 ≤ VIN≤ 6.0V  
△VOUT  
△VOUT/△IOUT  
VD  
Output Voltage Line Regulation (Note 4)  
Output Voltage Load Regulation (Note 4)  
Dropout Voltage (Note 6)  
V
OUT+1V<VIN<6.0V  
0.6  
0.65  
325  
150  
300  
%
%
10mA < IL < 1A  
IL = 1A  
500  
mV  
Ground Pin Current In Normal Operation  
Mode  
IL = 0mA  
IL = 1A  
IGND  
uA  
A
Peak Output Current  
IO(PEAK)  
(Note 2)  
1
SHORT CIRCUIT PROTECTION  
Short Circuit Current  
ISC  
2
A
OVER TEMPERATURE PROTECTION  
Shutdown Threshold  
TSHDN(THR)  
TSHDN(HYS)  
165  
10  
°C  
°C  
Thermal Shutdown Hysteresis  
UNISONIC TECHNOLOGIES CO., LTD  
6 of 9  
QW-R102-031.V  
www.unisonic.com.tw  
LR1108/E  
CMOS IC  
ELECTRICAL CHARACTERISTICS (Cont.)  
PARAMETER  
SYMBOL  
TEST CONDITIONS  
MIN  
TYP  
MAX  
0.2  
UNIT  
V
SHUTDOWN INPUT  
Output=High  
Output=Low  
IL=1A  
VIN-0.3  
VIN  
0
Shutdown Threshold  
VSHDN  
Turn-off Delay  
tD(OFF)  
tD(ON)  
ISD  
20  
25  
1
μs  
μs  
nA  
Turn-on Delay  
IL=1A  
SD Input Current  
VSD=VIN  
ERROR FLAG COMPARATOR (LR1108E)  
VEF(SAT) ISINK=100μA  
0.02  
1
0.1  
V
ERROR Flag Saturation  
II(LEAK)  
nA  
ERROR Flag Pin Leakage Current  
Threshold  
VT  
VTHR  
tD  
(Note 5)  
(Note 5)  
5
2
10  
5
16  
8
%
%
Threshold Hysteresis  
Flag Reset Delay  
1
μs  
ADJ Voltages @ Set/ADJ Mode (connect to GND for Preset VOUT  
)
@ Preset VO=1.2 ~ 1.5V  
ADJ Voltage @ Preset VO=3.4 ~ 5.0V  
@ Preset VO=1.8 ~ 3.3V  
Measured on ADJ,  
OUT=10mA  
1.176  
1.2  
1.224  
V
V
VADJ  
I
1.122 1.145 1.168  
AC PARAMETERS  
VIN=VOUT+1.5V  
OUT=100uF, VOUT=3.3V  
VIN=VOUT+0.3V  
OUT=100uF, VOUT=3.3V  
60  
40  
C
Ripple Rejection  
PSRR  
dB  
C
Output Noise Density  
Output Noise Voltage  
ρN(L/F)  
f=120Hz  
0.8  
150  
100  
μV  
BW=10Hz ~ 100kHz  
BW=300Hz ~ 300kHz  
eN  
μVRMS  
Notes: 1. Conditions for which the device is intended to be functional is indicated by operating ratings, but specific  
performance limits isn’t be guaranteed. To make sure of specifications and test conditions, read Electrical  
Characteristics. Only for the test conditions listed the guaranteed specifications can be applied. When the  
device is not operated under the listed test conditions some performance characteristics may degrade.  
2. Devices must be derated based on package thermal resistance at elevated temperatures.  
3. The most likely parametric norm represents at 25°C.  
4. Output voltage line regulation is the change in output voltage from the nominal value which is due to  
change in the input line voltage. Which is defined as the change in output voltage from the nominal value  
due to change in load current is output voltage load regulation. The load regulation and line regulation  
specification include the typical number only. But, the limits for load and line regulation are included in the  
output voltage tolerance specification.  
5. ERROR Flag hysteresis and threshold are specified as regulated output voltage’s percentage.  
6. At which the output drops 2% below the normal value dropout voltage is defined as the minimum input to  
output differential voltage. Only to output voltages of 2.5V and above dropout voltage specification applies.  
For output voltages below 2.5V, since the minimum input voltage is 2.5V, the drop-out voltage is nothing  
but the input to output differential.  
7. Specification has been tested at -40°C ≤ TJ ≤ +85°Ccause under shutdown conditions the temperature rise  
of the device is negligible.  
8. The minimum operating VIN value is equal to [VOUT(NOM) + VDROPOUT] or 2.5V, just the greater.  
UNISONIC TECHNOLOGIES CO., LTD  
7 of 9  
QW-R102-031.V  
www.unisonic.com.tw  
LR1108/E  
CMOS IC  
TYPICAL APPLICATION CIRCUIT  
INPUT  
3.3V±10%  
VIN  
SD  
VOUT  
2.5V, 500mA  
VOUT  
UTC LR1108  
CIN  
1µF  
COUT  
22µF  
*
(Note)  
ERROR  
SD  
ERROR  
GND  
Note: SD and ERROR pins must be pulled high through a 10kΩ pull-up resistor. Connect the ERROR pin to  
ground if this function is not used.  
Notes: 1. SD pins must be pulled high through a 10kΩ pull-up resistor.  
2. Connect the SET/ADJ pin to ground if this function is not used.  
3. The output voltage is calculated by:  
R1  
VOUT = VREF(1+  
)
R2  
UNISONIC TECHNOLOGIES CO., LTD  
8 of 9  
QW-R102-031.V  
www.unisonic.com.tw  
LR1108/E  
CMOS IC  
TYPICAL CHARACTERISTICS  
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. UTC reserves the right to  
make changes to information published in this document, including without limitation specifications and  
product descriptions, at any time and without notice. This document supersedes and replaces all  
information supplied prior to the publication hereof.  
UNISONIC TECHNOLOGIES CO., LTD  
9 of 9  
QW-R102-031.V  
www.unisonic.com.tw  

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