TECHNICAL DATA
Rev. 02
1.0A Low Dropout Positive Voltage Regulator
IL1117-xxET
IL1117-xxD0T
The IL1117 is a series of low dropout voltage regu-
lators which can provide up to 1A of output current. The
IL1117 is available in eight fixed voltage, 1.2, 1.25, 1.5,
1.8, 2.5, 2.85, 3.3 and 5.0V. Additionally it is also avail-
able 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, TO-
252, TO-220 packages.
A minimum of 10uF tantalum capacitor is required
at the output to improve the transient response and sta-
bility.
Features
· Dropout Voltage – 1.2V(Typ)
· Reference/Output Voltage Trimmed to ± 1%
· Maximum Input Voltage – 15V
· Adjustable Output Voltage or Fixed
1.2V, 1.25V, 1.5V, 1.8V, 2.5V, 2.85V, 3.3V, 5V
· Line Regulation typically at 0.2% max
· Load Regulation typically at 0.4% max
· Current Limiting and Thermal Protection
· Standard 3-Pin Power Packages
· Operating Junction Temperature Range
-40 to +125°C IL1117-xxKB
(for IL1117-1.2V - 0 to +150°C)
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
Symbol Description Max Units
VIN Input Voltage 15 V
IOUT DC Output Current PD/(VIN-VO) mA
TJ Operating Junction Temperature Range -40 to 125 °C
ΘJA Thermal Resistance (SOT-223) 150 °C/W
ΘJA Thermal Resistance (TO-252) 80 °C/W
ΘJA Thermal Resistance (TO-220) 60 °C/W
PD Maximum Power Dissipation (SOT-223) mW
PD Maximum Power Dissipation (TO-252) mW
PD Maximum Power Dissipation (SOT-220)
Internally Limited
mW
IL1117-xx
1.
ADJ/GND
2. Output
3. Input
SOT-223
TO-220
TO-252
Pin#2 connected with heat
sink