L1117 Series
SOT-223, TO-252,
1A Fixed and Adjustable Low
Dropout Linear Regulator (LDO)
NIKO-SEM
GENERAL DESCRIPTION
FEATURES
The L1117 Series are positive and low drop-
out three-terminal voltage regulators with
1A output current capability. These devices
are designed for use in low voltage applica-
tions that offers lower dropout voltage and
faster transient response.
Fixed 2.5V, 2.85V, 3.3V, 5V or adjustable
output voltage
Low dropout voltage:
1.2V typical at up to 1A
Low ground current
Fast transient response
Current & thermal limiting
Line regulation: 0.5% typical
Load regulation: 0.5% typical
SOT-223,TO-220,TO-252,TO-263
package
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These devices are fully protected against
over current faults, over temperature oper-
ation, reversed input polarity, reversed lead
insertion, transient voltage spike …etc.
On-Chips trimming the reference voltage to
2% and features the low dropout of maxi-
mum 1.45 volts.
APPLICATIONS
2.85V active SCSI terminators
8-15V to 5V linear regulators
5V to 2.5V or 3.3V linear regulators
Low voltage micro-controllers
Battery Chargers
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The L1117 Series regulators offer fixed and
adjustable voltage options available in the
popular industry standard SOT-223, TO-220,
TO-252 and TO-263 packages.
Motherboard clock supplies
Post regulator for switching supplies
Micro-controllers
ABSOLUTE MAXIMUM RATINGS
Operating Junction
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Maximum Supply Voltage
15V*
0 to 125 °C
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Temperature Range
Storage Temperature
Range
Lead Temperature
(Soldering, 10 Seconds)
Internally
Limited
Power Dissipation
-40 to 150 °C
260 °C
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Thermal Resistance
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16 °C/W
Junction to Case,
θJC
Thermal Resistance
Junction to Ambient,
SOT-223
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θJA
158 °C/W
70 °C/W
50 °C/W
60 °C/W
TO-252
TO-220
TO-263
* When considering short circuits to ground, the maximum input-to-output differential voltage shall not be allowed
greater than approximate 2~3V at values of supply voltage in excess of 10V, continuous short-circuits can exceed
the power dissipation ratings and cause eventual destruction.
JUL-27-2001
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