TECHNICAL DATA
1.0A Low Dropout Positive Voltage Regulator
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.
IL1117-xx
SOT-223
TO-252
Pin#2 connected with heat
sink
IL1117-xxD0T
IL1117-xxET
TO-220
1.
ADJ/GND
2. Output
3. Input
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
(for IL1117-1.2V - 0 to +150°C)
IL1117-xxKB
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
VIN
IOUT
TJ
ΘJA
ΘJA
ΘJA
PD
PD
PD
Description
Input Voltage
DC Output Current
Operating Junction Temperature Range
Thermal Resistance (SOT-223)
Thermal Resistance (TO-252)
Thermal Resistance (TO-220)
Maximum Power Dissipation (SOT-223)
Maximum Power Dissipation (TO-252)
Maximum Power Dissipation (SOT-220)
Max
15
PD/(VIN-VO)
-40 to 125
150
80
60
Internally Limited
Units
V
mA
°C
°C/W
°C/W
°C/W
mW
mW
mW
Rev. 02
IKSEMICON [ IK SEMICON CO., LTD ]
