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| L1127_15 Datasheet, PDF (4/5 Pages) Unisonic Technologies – HIGH-SPEED, LOW-DROPOUT, 300mA LINEAR REGULATOR | |||
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L1127
Preliminary
CMOS IC
 ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
RATINGS
UNIT
VIN Supply Voltage (VIN to GND)
VIN
+6.5
V
SHDN Input Voltage ( SHDN to GND)
VSHDN
-0.3 ~ +6.5
V
Power Dissipation
PD
400
mW
Junction Temperature
TJ
+125
°С
Storage Temperature
TSTG
-65 ~ +150
°С
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.
 RECOMMENDED OPERATING CONDITIONS
PARAMETER
VIN Supply Voltage
Output Voltage
VOUT Output Current
Operating Temperature
SYMBOL
VIN
VOUT
IOUT
TOPR
RATINGS
2.5 ~ 6
0.8 ~ 5.5
0 ~ 300
-40 ~ +85
UNIT
V
V
mA
°С
 ELECTRICAL CHARACTERISTICS
(VIN = VOUT+0.5V (min VIN=2.5V), IOUT=0~300mA, CIN = 1μF, COUT =1μF, TA = 25°С, unless otherwise specified)
PARAMETER
Output Voltage
Input Voltage
Line Regulation
Load Regulation
Reference Voltage
Maximum Output Current
Quiescent Current
Dropout Voltage
Power Supply Ripple Rejection Ratio
Short Current Limit
Shutdown Threshold
Shutdown Supply Current
Soft Start Time
RMS Output Noise
VOUT Discharge MOSFET RDS(ON)
SYMBOL
TEST CONDITIONS
VIN = VOUT+0.5V,
1mA<IOUT<300mA
VIN
REGLINE VOUT+0.5V<VIN<6V,IOUT= 10mA
REGLOAD
VIN = VOUT+0.5V,
1mA<IOUT<300mA
VREF
VIN = VOUT+0.5V,
1mA<IOUT<300mA
IOUT(MAX) VIN=VOUT+0.5V, VOUT= 0.98xVOUT
IQ IOUT =10mA ~300mA
VOUT = 1.0V, IOUT = 300mA
VOUT = 1.2V, IOUT = 300mA
VOUT = 1.5V, IOUT = 300mA
VD VOUT = 1.8V, IOUT = 300mA
VOUT =2.5V,2.8V,3.3V,4.2V,
IOUT = 300mA
VOUT=4.75V, IOUT=300mA
PSRR f = 10kHz, IOUT = 300mA
ISHORT VOUT = 0V
VIH
VIL
IOFF SHDN = Low, VIN = VOUT+0.5V
TSS
VNOISE
TA=25°С, 10Hz ⤠f â¤100kHz,
VOUT = 0.8V
SHDN = low
SHDN Pull Down Resistance
Output Voltage Temperature Coefficient
TJ= -40°С~85°С
Thermal Shutdown Temperature
TSHDN
Thermal Shutdown Hysteresis
DTSHDN
MIN
98%x
VOUT
2.5
TYP MAX UNIT
102%x
V
VOUT
6
V
0.06 %/V
0.6 %/A
0.784 0.8 0.816 V
300 400
mA
120 200 μA
1400 1500
1200 1300
900 1000
600 700 mV
170 300
140 300
45
dB
50
mA
1.5
6
V
0
0.4 V
0.1 1 μA
50
μs
60
μVRMS
60
3
+100
165
30
â¦
Mâ¦
ppm/°С
°С
°С
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 5
QW-R502-742.c
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