JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD 1A LOW DROPOUT LINEAR REGULATOR CJT1117B-XXX SOT 223 FEATURES 1. ADJ/GND z Low Dropout Voltage: 1.15V(typ.) at 1A Output Current 2. OUTPUT z Trimmed Current Limit 3.IN z On-Chip Thermal Shutdown z Three-Terminal Adjustable or Fixed 1.25V,1.8V, 2.5V, 3.3V, 5V z Operation Junction Temperature: -25 to125 GENERAL DESCRIPTION The CJT1117B-XXX is a series of low dropout three-terminal regulators with a dropout of 1.15V(typ.) at 1A output current. The CJT1117B-XXX series provides current limiting and thermal shutdown. Its circuit includes a trimmed bandgap. reference to assure output voltage accuracy to be within 1.5%. 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 CJT1117B-XXX has an adjustable version, that can provide the output voltage from 1.25V to 5V with only 2 external resistors. APPLICATIONS z PC Motherboard z LCD Monitor z Graphic Card z DVD-Video Player z NIC/Switch z Telecom Modem z ADSL Modem z Printer and Other Peripheral Equipment MARKING www.cj-elec.com 1 E,Jan,2017 MAXIMUM RATINGS ORDERING INFORMATION Package Operating Junction Temperature Range Part NO. CJT1117B-ADJ CJT1117B-1.8 SOT-223 -25 to 125 CJT1117B-2.5 CJT1117B-3.3 CJT1117B-5.0 ABOSLUTE MAXIMUM RATINGS (T =25 unless otherwise noted) a Parameter Symbol Value Unit Input Voltage V 20 V i Thermal Resistance from Junction to Ambient R 100 JA /W Junction Temperature T 150 j Storage Temperature -55~+150 T stg Lead Temperature (Soldering, 10s) T 260 L ESD Voltage (Machine Model) V 400 V ESD Note: Stresses 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 Value Unit Symbol Input Voltage V 15 V i Operating Junction Temperature -25~+125 T j www.cj-elec.com 2 E,Jan,2017