LDO voltage regulator, adjustable, 1.25 ... 13.8 V, 800mA, TO-25

LM1117 800-mA Low-Dropout Linear Regulator

Description:
The LM1117 is a low dropout voltage regulator with a dropout of 1.2V at 800 mA of load current. The LM1117 is available in an adjustable version, which can set the output voltage from 1.25 to 13.8 V with only two external resistors. In addition, it is available in five fixed voltages, 1.8 V, 2.5 V, 3.3 V, and 5 V. The LM1117 offers current limiting and thermal shutdown. Its circuit includes a Zener trimmed bandgap reference to assure output voltage accuracy to within ±1%. A minimum of 10-µF tantalum capacitor is required at the output to improve the transient response and stability.

Features:
- Available in 1.8 V, 2.5 V, 3.3 V, 5 V, and Adjustable Versions
- Space-Saving SOT-223 and WSON Packages
- Current Limiting and Thermal Protection
- Output Current 800 mA
- Line Regulation 0.2% (Maximum)
- Load Regulation 0.4% (Maximum)
- Temperature Range:
- LM1117: 0°C to 125°C

Applications:
- Post Regulator for Switching DC-DC Converter
- High Efficiency Linear Regulators
- Battery Chargers
- Portable Instrumentation
- Active SCSI Termination Regulator