LR1108 Ver la hoja de datos (PDF) - Unisonic Technologies
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LR1108 Datasheet PDF : 6 Pages
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LR1108
CMOS IC
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATINGS
UNIT
Input Voltage (Operating) (Note 10)
Input Voltage (Survival)
VIN
2.5~7.0
V
-0.3~+7.5
V
Shutdown Input Voltage
VIN(SHDN)
-0.3~VIN+0.3
V
Output Voltage (Survival), (Note 4, 5)
VOUT
-0.3~+7.5
V
IOUT (Survival)
Short Circuit Protected
Maximum Voltage for ERROR Pin
VIN+0.3
V
Maximum Operating Current (DC)
1
A
Power Dissipation (Note 2)
PD
Internally Limited
Junction Temperature
TJ
+125
°C
Operating Temperature
TOPR
-40~+125
°C
Storage Temperature
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.
THERMAL DATA
PARAMETER
SOT-223
Junction to Ambient
SOT-25
TO-252
SOT-89
SOT-223
Junction to Case
SOT-25
TO-252
SOT-89
SYMBOL
θJA
θJC
RATINGS
165
249
112
179
15
165
12
47
UNIT
℃/W
℃/W
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 = 2.2μF, VSD = VIN-0.3V, unless otherwise specified.)
PARAMETER
SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage Tolerance (Note 6)
VOUT
0mA ≤ IL ≤ 1A
VOUT +1 ≤ VIN≤ 7.0V
Output Voltage Line Regulation (Note 6) △VOUT VOUT+1V<VIN<7.0V
Output Voltage Load Regulation (Note 6) △VOUT/△IOUT 10mA < IL < 1A
-1.5
0
+1.5
%
-3
+3
0.05
%
0.04
%
Dropout Voltage (Note 8)
VD
IL = 1A
300 500 mV
Ground Pin Current In Normal Operation
Mode
IGND
IL = 0mA
IL = 1A
200
300
uA
Peak Output Current
IO(PEAK) (Note 2)
1
A
SHORT CIRCUIT PROTECTION
Short Circuit Current
ISC
2
A
OVER TEMPERATURE PROTECTION
Shutdown Threshold
TSHDN(THR)
165
°C
Thermal Shutdown Hysteresis
TSHDN(HYS)
10
°C
SHUTDOWN INPUT
Shutdown Threshold
VSHDN
Output = High
Output = Low
VIN-0.3 VIN
V
0
0.2
Turn-off Delay
tD(OFF)
IL = 1A
20
μs
Turn-on Delay
tD(ON)
IL = 1A
25
μs
SD Input Current
ISD
VSD = VIN
1
nA
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 6
QW-R102-031.I
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