The LM1117 is a series of low dropout voltage regulators with a dropout of 1.2V at 800mA of load current. It has the same pin-out as National Semiconductor’s industry standardLM317.
The LM1117 is available in an adjustable version, which can set the output voltage from 1.25V to 13.8V with only two external resistors. In addition, it is also available in five fixed voltages, 1.8V, 2.5V, 2.85V, 3.3V, and 5V.
Available in 1.8V, 2.5V, 2.85V, 3.3V, 5V, and Adjustable Versions
Space Saving SOT-223 and LLP Packages
Current Limiting and Thermal Protection
Output Current 800mA
Line Regulation 0.2% (Max)
Load Regulation 0.4% (Max)
— LM1117 0˚C to 125˚C
— LM1117I −40˚C to 125˚C
2.85V Model for SCSI-2 Active Termination
Post Regulator for Switching DC/DC Converter
High Efficiency Linear Regulators
Battery Powered Instrumentation