TECHNICAL DATA
IL1117-x
1.0A Low Dropout Positive Voltage Regulator
SOT-223
S1117-XX
ADJ/
GND OUT IN
1
2
3
IL1117-xx
Features
Adjustable and Fixed of 1.2, 1.25, 1.5, 1.8, 2.5, 2.85, 3.3, 5.0V
Space saving SMD types of SOT-223
1.2V Drop-out Voltage
1.0A Output Current
Line Regulation Typically at 0.2% max
Current Limiting and Thermal Protection
General Description
The IL1117 is a series of low dropout voltage regulators which can provide
up to 1A of output current. The IL1117 is available in seven fixed voltage,
1.2, 1.25, 1.5, 1.8, 2.5, 2.85, 3.3 and 5.0V. Additionally it is also available in
adjustable version. On chip precision trimming adjusts the reference/
output voltage to within 2%. Current limit is also trimmed to ensure
specified output current and controlled short-circuit current.
The IL1117 series is available in SOT-223 packages.
A minimum of 10uF tantalum capacitor is required at the output to
improve the transient response and stability.
Applications
Post Regulator for switching DC/DC Converter
High Efficiency Linear Regulator
Battery Chargers
PC Add on Card
Motherboard clock supplies
LCD Monitor
Set-top Box
Absolute Maximum Ratings
Maximum Input Voltage ~ 15.0V
Operating Junction Temperature Range -25 ~ 125
Storage Temperature Range -50 ~ 150
1
IL1117-x
Electrical Characteristics
(Vin = 5V, Co = 10uF, Ta = 25 , unless otherwise specified)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
OUTPUT VOLTAGE
IL1117-1.2
IL1117-1.25 (Adjustable)
IL1117-1.5
IL1117-1.8
IL1117-2.5
IL1117-2.85
IL1117-3.3
IL1117-5.0
Tj = -25C to +125C
Io=10mA to 1.0A, Vin=1.5 to 12.0V
Io=10mA to 1.0A, Vin=1.5 to 12.0V
Io=10mA to 1.0A, Vin=3.0 to 12.0V
Io=10mA to 1.0A, Vin=3.3 to 12.0V
Io=10mA to 1.0A, Vin=4.0 to 12.0V
Io=10mA to 1.0A, Vin=4.4 to 12.0V
Io=10mA to 1.0A, Vin=4.8 to 12.0V
Io=10mA to 1.0A, Vin=6.5 to 15.0V
1.176
1.225
1.470
1.764
2.450
2.790
3.240
4.900
1.200
1.250
1.500
1.800
2.500
2.850
3.300
5.000
1.224
1.280
1.530
1.836
2.550
2.910
3.360
5.100
V
LINE REGULATION
IL1117-1.2
IL1117-1.25 (Adjustable)
IL1117-1.5
IL1117-1.8
IL1117-2.5
IL1117-2.85
IL1117-3.3
IL1117-5.0
Io=10mA to 1.0A, Vin =1.5 to 12.0V
Io=10mA to 1.0A, Vin =1.5 to 12.0V
Io=10mA to 1.0A, Vin =3.0 to 12.0V
Io=10mA to 1.0A, Vin =3.3 to 12.0V
Io=10mA to 1.0A, Vin =4.0 to 12.0V
Io=10mA to 1.0A, Vin =4.4 to 12.0V
Io=10mA to 1.0A, Vin =4.8 to 12.0V
Io=10mA to 1.0A, Vin =6.5 to 15.0V
0.1
2.0
2.0
2.0
2.0
2.0
3.0
4.0
0.2
7.0
7.0
7.0
7.0
7.0
7.0
10.0
%
mV
mV
mV
mV
mV
mV
mV
LOAD REGULATION
IL1117-1.2
IL1117-1.25 (Adjustable)
IL1117-1.5
IL1117-1.8
IL1117-2.5
IL1117-2.85
IL1117-3.3
IL1117-5.0
Io=10mA to 1.0A, Vin =2.0V
Io=10mA to 1.0A, Vin =2.0V
Io=10mA to 1.0A, Vin =3.5V
Io=10mA to 1.0A, Vin =3.8V
Io=10mA to 1.0A, Vin =4.5V
Io=10mA to 1.0A, Vin =4.85V
Io=10mA to 1.0A, Vin=5.3V
Io=10mA to 1.0A, Vin=7.0V
0.2
3.0
3.0
3.0
3.0
3.0
4.0
5.0
0.4
10.0
10.0
10.0
10.0
10.0
12.0
15.0
%
mV
mV
mV
mV
mV
mV
mV
DROPOUT VOLTAGE (2)
All Models
Io = 800mA
Io=1A
1.10
1.20
1.20
1.30
V
Io=1A (Tj = -25C to +125C.)
1.20
1.55
CURRENT LIMIT
Vin = 5V
1000
1250
1600
mA
MINIMUM LOAD CURRENT
Adjustable Models
Vin
= 13.75V
5
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, IL1117
Io = 10mA to 1A, Vin = 1.4 to 10V
0.5
5
uA
TEMPERATURE DRIFT
Tj= -25C to +125C
0.5
%
RMS Output Noise
Bandwidth of 10Hz to 10kHz at 25C
0.003
%Vo
Ripple Rejection Ratio
120Hz input Ripple(Cadj for ADJ)=25uF
Vin -Vo
= 5V, Io = 1.0A
Tj= -25C to +125C
60
72
dB
NOTES: (1) IL1117-x adjustable versions require a minimum load current for 3% regulation.
(2) Dropout voltage is the input voltage minus output voltage that produces a 1% decrease in output voltage.
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