800 mA adjustable LDO with 75 dB line rejection
The Texas Instruments LM1117ILD-ADJ/NOPB is an adjustable positive LDO regulator delivering up to 800 mA from a 1.25 V minimum output to 13.8 V maximum. The 1.2 V dropout at 800 mA means you need at least 2.45 V input to hold regulation at the 1.25 V output — budget that headroom when the input rail sags under load.
Industrial temperature grade and protection
The 5 mA quiescent current (10 mA supply max) is typical for a 800 mA LDO — not a micropower part, but the thermal budget is manageable with the exposed pad. Built-in over-current and over-temperature protection means the part shuts itself down before the board scorches — useful when a downstream short pulls the rail hard.