A8113
AiT Semiconductor Inc.
HIGH POWER WHITE LED DRIVER
www.ait-ic.com
300mA ULTRA-LOW NOISE, ULTRA-FAST
ELECTRICAL CHARACTERISTICS
VIN=3.6V, EN=VIN, CIN=COUT=1μF, CBP=22nF, TA=25℃, unless otherwise noted.
Parameter
Input Voltage
Symbol
VIN
Conditions
Min.
2
Typ. Max.
Unit
V
6
-1
+1
+2
Output Voltage AccuracyNOTE2
ΔVOUT
VIN=3.6V,IOUT=1mA
%
-2
Current Limit
ILIM
IQ
RLOAD=1Ω
400
430
mA
Quiescent Current
VEN>1.2V, IOUT=0mA
90
130
180
300
0.17
2
μA
IOUT=200mA,VOUT=2.8V
130
210
0.05
Dropout Voltage
VDROP
mV
IOUT=300mA,VOUT=2.8V
Line RegulationNOTE3
Load RegulationNOTE4
Output Voltage
ΔVLINE VIN=3.6V to 5.5V IOUT=1mA
ΔVLOAD 1mA<IOUT<300mA
%/V
%/A
TCVOUT IOUT=1mA
±60
ppm/℃
Temperature Coefficient NOTE5
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
-65
165
30
Power Supply
Rejection
Ratio
f=1KHz
PSRR
C
OUT=1uF, IOUT=100mA
dB
f=10KHz
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
TSD
Shutdown, Temp increasing
℃
℃
TSDHY
NOTE2: This IC includes two kinds of output voltage accuracy versions. A: ±1%, B: ±2%.
NOTE3: Line regulation is calculated by
Where VOUT1 is the output voltage when VIN=5.5V, and VOUT2 is the output voltage when VIN=3.6V, △VIN=1.9V .VOUT(normal)=2.8V.
NOTE4: Load regulation is calculated by
Where VOUT1 is the output voltage when IOUT=1mA, and VOUT2 is the output voltage when IOUT=300mA.△IOUT=0.299A, VOUT(normal)=2.8V.
NOTE5: The temperature coefficient is calculated y by
REV2.0
- JUN 2011 RELEASED, SEP 2012 REVISED -
- 4 -
AITSEMI [ AiT Semiconductor ]
