It delivers up to 500 mA continuous output with a maximum dropout voltage of 1V at 50 mA load — enough headroom for 5V-to-3.3V conversion in most automotive and industrial rails.
Dropout voltage and quiescent current — the headroom trade-off
Dropout is specified at 1V maximum at 50 mA output. At full 500 mA load the dropout rises; plan for at least 1.5V input-to-output differential to stay in regulation across temperature. Quiescent current is 2 mA typical — not a micropower LDO, but acceptable for always-on rails where the load current dominates the power budget.
Protection set — over-temp, reverse polarity, short circuit
On-chip protection includes over-temperature shutdown, reverse polarity blocking, and short-circuit current limiting. These reduce the need for external clamp diodes or foldback circuits in ruggedised designs.
NRND — what it means for new builds and BOM planning
No official pin-compatible replacement has been announced; qualify a current-production LDO from the LM2937 family if you need a drop-in alternate.