A6318
REGULATOR CMOS LOW DROPOUT REGULATOR (LDO)
300mA ULTRA-LOW NOISE, ULTRA-FAST
AiT Semiconductor Inc.
www.ait-ic.com
NOTE3
ELECTRICAL CHARACTERISTICS
VIN=3.6V, EN=VIN, CIN=COUT=1μF, CBP=22nF, TA=25℃, unless otherwise noted
Parameter
Input Voltage
Output Voltage Accuracy
Symbol
Conditions
Min
Typ.
430
Max
Unit
VIN
ΔVOUT
2
6
V
%
VIN=3.6V, IOUT=1mA
-2
+2
Current Limit
ILIM
IQ
RLOAD=1Ω
400
mA
Quiescent Current
VEN>1.2V, IOUT=0mA
90
130
180
300
μA
IOUT=200mA, VOUT=2.8V
IOUT=300mA, VOUT=2.8V
130
210
Dropout Voltage
VDROP
mV
Line RegulationNote4
Load RegulationNote5
Output Voltage
ΔVLINE
VIN=3.6V to 5.5V, IOUT=1mA
1mA<IOUT<300mA
0.05
0.17
2
%/V
%/A
ΔVLOAD
ppm/℃
TCVOUT
IOUT=1mA
±60
Temperature CoefficientNote6
Standby Current
ISTBY
IIBSD
VIL
VEN=GND, Shutdown
VEN=GND or VIN
0.01
0
1
μA
EN Input Bias Current
100
0.4
nA
Logic Low
Logic High
VIN=3V to 5.5V,Shutdown
VIN=3V to 5.5V,Start up
10Hz to100KHz,
EN Input
V
Threshold
VIH
1.2
Output Noise Voltage
eNO
100
μVRMS
IOUT=200mA, COUT=1uF
f=217Hz
-80
-78
Power Supply
Rejection Ratio
COUT=1uF,
OUT=100mA
f=1KHz
PSRR
dB
I
f=10KHz
-65
Thermal Shutdown
Temperature
Shutdown, Temp
increasing
TSD
165
℃
℃
Thermal Shutdown
Hysteresis
TSDHY
30
NOTE3: 100% production test at +25°C. Specifications over the temperature range are guaranteed by design and characterization
NOTE4: Line regulation is calculated by ΔVLINE= [(VOUT1-VOUT2)/(ΔVINxVOUT(normal))]x100
Where VOUT1 is the output voltage when VIN=5.5V, and VOUT2 is the output voltage when VIN=3.6V, ΔVIN=1.9V .VOUT(normal)=2.8V
NOTE5: Load regulation is calculated by ΔVLOAD= [(VOUT1-VOUT2)/(ΔIOUTxVOUT(normal))]x100
Where VOUT1 is the output voltage when IOUT=1mA, and VOUT2 is the output voltage when IOUT=300mA. ΔIOUT=0.299A,
VOUT (normal)=2.8V.
NOTE6: The temperature coefficient is calculated by TCVOUT=ΔVOUT /ΔTxVOUT
REV2.1
- JAN 2010 RELEASED, FEB 2014 UPDATED -
- 4 -
AITSEMI [ AiT Semiconductor ]
