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LR1125G-S08-R Datasheet(PDF) 3 Page - Unisonic Technologies

Part # LR1125G-S08-R
Description  500mA, LOW-VOLTAGE LINEAR REGULATOR
PDF  7 Pages
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Manufacturer  UTC [Unisonic Technologies]
Direct Link  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

LR1125G-S08-R Datasheet(HTML) 3 Page - Unisonic Technologies

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LR1125
CMOS IC
UNISONICTECHNOLOGIESCO.,LTD
3 of 7
www.unisonic.com.tw
QW-R502-416.A
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
RATINGS
UNIT
IN, SHDN, POK, SET to GND
-0.3~+6
V
OUT to GND
-0.3~(VIN+0.3)
V
Output Short-Circuit Duration
ID
continuous
Power Dissipation (Ta=70°C)
PD
1.95
W
Junction Temperature
TJ
+150
°C
Operating Temperature
TOPR
-40~+85
°C
Storage Temperature Range
TSTG
-65~+150
°C
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.
ELECTRICAL CHARACTERISTICS (VIN=VOUT(SETPOINT)+500mV or VIN=2.25V which is greater,
SET=GND, SHDN=IN, unless otherwise specified. Typical values are at Ta=25°C)
Ta=0°C~85°C
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Input Voltage
VIN
2.25
5.50
V
Input Undervoltage Lockout
VUVLO
Rising, 40mV hysteresis
1.85
2
2.15
V
IOUT=100mA
-1.5
+1.5
IOUT=1mA ~ 500mA
-2.5
+2.5
Output Voltage Accuracy (Preset
Mode)
VOUT
Ta=0°C ~85°C, IOUT=1mA~500mA,
VIN>VOUT+0.5V
-3
+3
%
Adjustable Output Voltage
0.8
4.5
V
IOUT=100mA
788
812
IOUT=1mA ~ 500mA
780
820
SET Voltage Threshold (Adjustable
Mode)
VSET
Ta=0°C ~85°C, IOUT=1mA~500mA,
VIN>VOUT+ 0.5V
774
800
826
mV
Maximum Output Current
IOUT
500
mA
Short-Circuit Current Limit
ILIMIT
VOUT=0V
600 1400
2300
mA
SET Dual Mode Threshold
35
80
125
mV
SET Input Bias Current
ISET
VSET=0.8V
-100
+100
nA
IOUT=1mA
210
600
Ground-Pin Current
IQ
IOUT=500mA
575
µA
IOUT= 500mA, VOUT=2.25V
259
400
IOUT= 500mA, VOUT=2.8V
201
350
Dropout Voltage (Note 1)
VD
IOUT= 500mA, VOUT=4V
147
275
mV
Line Regulation
∆VLNR
VIN from (VOUT+100mV)~5.5V,
ILOAD=5mA
0
0.125
%/V
Load Regulation
∆VLDR
IOUT=1mA ~500mA
15.5
35
ppm/mA
Output Voltage Noise
10Hz~1MHz, CO=10µF(ESR<0.1Ω)
300
µV RMS
SHUTDOWN
Shutdown Supply Current
IOFF
SHDN = GND, VIN= 5.5V
0.02
5
µA
VIH
1.6
SHDN
Input Threshold
VIL
0.6
V
SHDN
Input Bias Current
I SHDN
SHDN = GND or IN
10
100
nA
Startup Time
tSTART
CO=10µF,time from SHDN high to
POK high
40
µs



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