LM317AMDTX/NOPB – TEXAS INSTRUMENTS

The LM317AMDTX/NOPB is a three-terminal adjustable positive linear regulator in a TO-220 surface-mount package (SOT-223). This specific part number designates a lead-free (NOPB) version optimized for automated placement, indicated by the “AMDTX” suffix. It offers a wide adjustable output voltage range from 1.2V to 37V, with a maximum output current of 1.5A. The input voltage can range from 3V to 40V, providing significant headroom. Its internal current limiting and thermal overload protection features enhance robustness._x000D_
_x000D_
The LM317AMDTX/NOPB employs a simple, two-resistor feedback network for precise voltage regulation, making it highly versatile. Typical applications include programmable power supplies, current limiting circuits, and precision voltage references where a stable, adjustable output is crucial. Its ability to handle relatively high currents in a compact surface-mount package makes it suitable for space-constrained designs. The device’s inherent stability and ease of use, coupled with its wide input voltage range, reduce design complexity and improve overall system reliability compared to discrete regulator solutions. However, note its linear nature; significant power dissipation may require external heat sinking at higher currents or input-output voltage differentials.