LM1117IDTX-3.3/NOPB – TEXAS INSTRUMENTS

The LM1117IDTX-3.3/NOPB is a 3.3V, 800mA low-dropout (LDO) linear regulator in a TO-263 (D²PAK) surface-mount package. This specific part number denotes a lead-free (NOPB) version, crucial for RoHS compliance. Unlike its higher-current siblings, the LM1117IDTX-3.3/NOPB prioritizes efficiency at lower current draws, making it ideal for applications requiring precise 3.3V regulation with minimal power dissipation. Its input voltage range spans 4.75V to 15V, allowing flexibility in system design. The device features thermal shutdown and current limiting for robust protection against overloads. Output voltage accuracy is ±1.0% typical, ensuring reliable voltage regulation even with fluctuating input conditions. Common applications include powering microcontrollers, low-power sensors, and other 3.3V digital logic circuits where precise voltage regulation and compact footprint are paramount. The LM1117IDTX-3.3/NOPB’s low dropout voltage (~1.2V typical) minimizes power loss, especially advantageous in battery-powered systems. Its simplicity and ease of use, combined with its robust protection mechanisms, make it a preferred choice for many low-power, space-constrained designs.