L1117 Series
SOT-223, TO-252,
TO-220,TO-263
1
1A Fixed and Adjustable Low
Dropout Linear Regulator (LDO)
JUL-27-2001
NIKO-SEM
GENERAL DESCRIPTION
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.
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.
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.
FEATURES
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
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
Motherboard clock supplies
Post regulator for switching supplies
Micro-controllers
* 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.
ABSOLUTE MAXIMUM RATINGS
Maximum Supply Voltage
15V*
Operating Junction
Temperature Range
0 to 125 °C
Power Dissipation
Internally
Limited
Storage Temperature
Range
-40 to 150 °C
Thermal Resistance
Junction to Case,
θJC
16 °C/W
Lead Temperature
(Soldering, 10 Seconds)
260 °C
Thermal Resistance
Junction to Ambient,
θJA
SOT-223
TO-252
TO-220
TO-263
158 °C/W
70 °C/W
50 °C/W
60 °C/W
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