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| L1127 Datasheet, PDF (4/5 Pages) Unisonic Technologies – ULTRA-LOW-NOISE, 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
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
Output Voltage
VIN = VOUT+0.5V,
1mA<IOUT<300mA
98%x
VOUT
102%x
V
VOUT
Input Voltage
VIN
2.5
6
V
Line Regulation
REGLINE VOUT+0.5V<VIN<6V,IOUT= 10mA
0.06 %/V
Load Regulation
REGLOAD
VIN = VOUT+0.5V,
1mA<IOUT<300mA
0.6 %/A
Reference Voltage
VREF
VIN = VOUT+0.5V,
1mA<IOUT<300mA
0.784 0.8 0.816 V
Maximum Output Current
IOUT(MAX) VIN=VOUT+0.5V, VOUT= 0.98xVOUT
300 400
mA
Quiescent Current
IQ IOUT =10mA ~300mA
60 90 μA
VOUT = 1.0V, IOUT = 300mA
1400 1500
VOUT = 1.2V, IOUT = 300mA
1200 1300
VOUT = 1.5V, IOUT = 300mA
900 1000
Dropout Voltage
VD VOUT = 1.8V, IOUT = 300mA
600 700 mV
VOUT =2.5V,2.8V,3.3V,4.2V,
IOUT = 300mA
170 300
VOUT=4.75V and 5.2V, IOUT=300mA
140 300
Power Supply Ripple Rejection Ratio PSRR f = 10kHz, IOUT = 300mA
45
dB
Short Current Limit
ISHORT VOUT = 0V
50
mA
Shutdown Threshold
VIH
VIL
1.5
6
V
0
0.4 V
Shutdown Supply Current
Soft Start Time
RMS Output Noise
IOFF
TSS
VNOISE
SHDN = Low, VIN = VOUT+0.5V
TA=25°С, 10Hz ⤠f â¤100kHz,
VOUT = 0.8V
0.1 1 μA
50
μs
60
μVRMS
VOUT Discharge MOSFET RDS(ON)
SHDN = low
60
â¦
SHDN Pull Down Resistance
3
Mâ¦
Output Voltage Temperature Coefficient
TJ= -40°С~85°С
Thermal Shutdown Temperature
TSHDN
Thermal Shutdown Hysteresis
DTSHDN
+100
165
30
ppm/°С
°С
°С
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 5
QW-R502-742.a
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