TEXAS INSTRUMENTS LM1117 3.3V 800mA LDO Voltage Regulator, SOT-223

The TEXAS INSTRUMENTS LM1117IMP-3.3/NOPB is a fixed, low-dropout (LDO) voltage regulator, engineered to deliver a stable 3.3V output from a higher input voltage. It features a low dropout voltage of just 1.2V at the full 800mA load current, making it highly efficient and suitable for applications where the input voltage is close to the desired output.

This regulator is designed for reliability, incorporating essential protection features such as current limiting and thermal shutdown. These safeguards help prevent damage from overload conditions or excessive operating temperatures. The device utilises a precision zener band gap reference, ensuring the output voltage accuracy is maintained within ±1% for consistent performance.

Key electrical specifications include excellent line regulation of 0.2% and load regulation of 0.4%. It is built to operate across a wide temperature range from -40°C to 125°C, ensuring functionality in demanding environments. The component is supplied in an SOT-223 surface-mount package, suitable for automated assembly processes, and comes in vacuum caps with embossed tape packaging for secure handling and storage.

With a maximum input voltage of 15V and a positive polarity output, this single-output regulator is a fundamental building block for robust power management solutions.