TECHNICAL DATA
IL233-xx
500mA Low Dropout Linear Voltage Regulator
Features
Guaranteed 500 mA output current
Line Regulation typically at 0.2% max
Load Regulation typically at 0.4% max
Current Limiting and Thermal Protection
Three-terminal Adjustable Output Voltage 1.25V or
Fixed 1.5V,1.8V, 2.5V, 2.85V, 3.3V, 5V
Input voltage range up to 15V
Dropout voltage 1.2v (Typ.)
General Description
The IL233 is a series of low dropout voltage
regulators which can provide 500mA of output
current.
The IL233 is available in seven fixed
voltage,,1.25, 1.5, 1.8, 2.5, 2.85, 3.3 and 5.0V.
Additionally it is also available in adjustable version. It
includes output current-limiting and thermal-limiting
curcuit
The IL233 series is available in TO-92 , SOT-89,
SOT-223 packages.
Applications
Post Regulator for switching DC/DC Converter
High Efficiency Linear Regulator
Battery Chargers
Wireless communication systems
Pin Assignment
Pin NO.
Funtion
1 GND
2 Output
3 Input
Absolute Maximum Ratings
Parameter Min.
Typ.
Max.
Unit
Input Voltage Vin
15
V
Operating Junction Temperature Range
-25
125
C
1
IL233-x
Electrical Characteristics
At Tj= +25C, unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX UNITS
OUTPUT VOLTAGE
Tj = -25C to +125C
IL 233 (Adjustable)
Io = 10mA to 0.5A, Vin = 2.8V to 12V
1.225
1.250
1.275
IL 233 -1.5
Io = 10mA to 0.5A, Vin = 3.0V to 12V
1.470
1.500
1.530
IL 233 -1.8
Io = 10mA to 0.5A, Vin = 3.3V to 12V
1.764
1.800
1.836
IL 233 -2.5
Io = 10mA to 0.5A, Vin = 4.0V to 12V
2.450
2.500
2.550
IL 233 -2.85
Io = 10mA to 0.5A, Vin = 4.4V to 12V
2.790
2.850
2.910
IL 233 -3.3
Io = 10mA to 0.5A, Vin = 4.8V to 12V
3.235
3.300
3.365
IL 233 -5.0
Io = 10mA to 0.5A, Vin = 6.5V to 15V
4.900
5.000
5.100
V
LINE REGULATION
Tj = -25C to +125C
IL 233 (Adjustable)
Io = 10mA, Vin = 2.8V to 12V
-
-
0.2
%
IL 233 -1.5
Io = 10mA, Vin = 3.0V to 12V
-
-
7
mV
IL 233 -1.8
Io = 10mA, Vin = 3.3V to 12V
-
-
7
mV
IL 233 -2.5
Io = 10mA, Vin = 4.0V to 12V
-
-
7
mV
IL 233 -2.85
Io = 10mA, Vin = 4.4V to 12V
-
-
7
mV
IL 233 -3.3
Io = 10mA, Vin = 4.8V to 12V
-
-
7
mV
IL 233 -5.0
Io = 10mA, Vin = 6.5V to 15V
-
-
10
mV
LOAD REGULATION
Tj = -25C to +125C
IL 233 (Adjustable)
(1)
Io = 10mA to 0.5A, Vin
= 2.8V
-
-
0.4
%
IL 233 -1.5
Io = 10mA to 0.5A, Vin = 3.0V
-
-
10
mV
IL 233 -1.8
Io = 10mA to 0.5A, Vin = 3.3V
-
-
10
mV
IL 233 -2.5
Io = 10mA to 0.5A, Vin = 4.0V
-
-
10
mV
IL 233 -2.85
Io = 10mA to 0.5A, Vin
= 4.4V
-
-
10
mV
IL 233 -3.3
Io = 10mA to 0.5A, Vin
= 4.8V
-
-
10
mV
IL 233 -5.0
Io = 10mA to 0.5A, Vin = 6.5V
-
-
15
mV
DROPOUT VOLTAGE
(2)
Io=0.5A
1.2
1.30
All Models
Io=0.5A (Tj = -25C to +125C.) 1.2
1.5 V
OUTPUT CRRENT
Vin
-Vo = 5V
500
mA
MINIMUMLOAD
CURRENT
Adjustable Models
Vin
= 13.5V
10
mA
QUIESCENT CURRENT
Vin = 5V
5.2 10 mA
Adjust Pin Current
Io = 10mA, Vin
= 1.4 to 10V
50 120 uA
Vs Load Current, IL 233
Io = 10mA to 0.5A, Vin = 1.4 to 10V
0.5 5 uA
TEMPERATURE DRIFT
Tj= -25C to +125C
0.5
%
NOTES: (1) IL 233 adjustable versions require a minimum load current for 3% regulation. (2) The dropout voltage
is the input/output differential at which the circuit ceases to regulate against further reduction in input voltage. It is
measured when the output voltage has dropped 100 mV from the nominal value obtained at Vin=Vout+1.5V.
2
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