JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD
1A LOW DROPOUT LINEAR REGULATOR
GENERAL DESCRIPTION
The CJ1117 is a series of low dropout three-terminal regulators with a dropout of 1.15V at 1A output current.
The CJ1117 series provides current limiting and thermal shutdown. Its circuit includes a trimmed bandgap
reference to assure output voltage accuracy to be within 1%. Current limit is trimmed to ensure specified output
Current and controlled short-circuit current. On-chip thermal shutdown provides protection against any
combination of overload and ambient temperature that would create excessive junction temperature.
The CJ1117 has an adjustable version, that can provide the output voltage from 1.25V to 12V with only 2
external resistors.
The CJ1117 series is available in the industry standard SOT-223,SOT-89,TO-220,TO-252 and TO-263 power
packages.
FEATURES
Low Dropout Voltage: 1.15V at 1A Output Current
Trimmed Current Limit
On-Chip Thermal Shutdown
Three-Terminal Adjustable or Fixed 1.5V, 1.8V, 2.5V, 3.3V, 5V
Operation junction Temperature: 0
to125
APPLICATIONS
PC Motherboard
LCD Monitor
Graphic Card
DVD-Video player
NIC/Switch
Telecom Modem
ADSL Modem
Printer and other peripheral Equipment
TO-251
Figure 1. Package Types of CJ1117
JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD
1A LOW DROPOUT LINEAR REGULATOR
PIN CONFIGURATIONS
T Package A Package
(SOT-223) (SOT-89)
P Package U Package
(TO-220) (TO-252)
B Package D Package
(TO-263) (TO-251)
Figure 2. Pin Configurations of CJ1117
JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD
1A LOW DROPOUT LINEAR REGULATOR
FUNCTIONAL BLOCK DIAGRAM
Figure 3. Functional Block Diagram of CJ1117
JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD
1A LOW DROPOUT LINEAR REGULATOR
ORDERING INFORMATION
Package Temperature
Range Part
Number
CJT1117-ADJ
CJT1117-1.5
CJT1117-1.8
CJT1117-2.5
CJT1117-3.3
SOT-223
0 to 125
CJT1117-5.0
CJA1117-ADJ
CJA1117-1.5
CJA1117-1.8
CJA1117-2.5
CJA1117-3.3
SOT-89
0 to 125
CJA1117-5.0
CJP1117-ADJ
CJP1117-1.5
CJP1117-1.8
CJP1117-2.5
CJP1117-3.3
TO-220
0 to 125
CJP1117-5.0
CJU1117-ADJ
CJU1117-1.5
CJU1117-1.8
CJU1117-2.5
CJU1117-3.3
TO-252
0 to 125
CJU1117-5.0
CJB1117-ADJ
CJB1117-1.5
CJB1117-1.8
CJB1117-2.5
CJB1117-3.3
TO-263
0 to 125
CJB1117-5.0
CJD1117-ADJ
CJD1117-1.5
CJD1117-1.8
CJD1117-2.5
CJD1117-3.3
TO-251
0 to 125
CJD1117-5.0
CJ 1117- Z
ADJ: Adjustable Output
Package Circuit Type 1.5: Fixed Output 1.5V
T: SOT-223 U: TO-252 1.8: Fixed Output 1.8V
A: SOT-89 B: TO-263 2.5: Fixed Output 2.5V
P: TO-220 D: TO-251 3.3: Fixed Output 3.3V
5.0: Fixed Output 5.0V
JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD
1A LOW DROPOUT LINEAR REGULATOR
ABOSLUTE MAXIMUM RATINGS (NOTE 1)
Parameter
Value Unit
V
IN
20 V
Maximum Junction Temperature
150
Storage Temperature Range
-65 to 150
Lead Temperature (Soldering, 10sec.)
300
ESD (Machine Model)
600 V
Note 1: Su=tresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to
the device. These are stress ratings only, and functional of the device at these or any other conditions beyond those
indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for
extended periods may affect device reliability.
RECOMMENDED OPERATING CONDITIONS
Parameter Min
Max
Unit
V
IN
15 V
Operating Junction Temperature Range
0 125
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