Adjustable LDO with 55 dB ripple rejection
Its 55 dB PSRR at 120 Hz means it knocks down mains-frequency ripple by a factor of about 560 — useful for powering analog front-ends or sensor supplies where clean DC matters.
Dropout and output range — the BOM-fit numbers
Maximum dropout is 0.3 V at 100 mA load, so the input needs to sit only 300 mV above the set output voltage to stay in regulation. Quiescent current is 1 mA typical, rising to 15 mA max under heavy load — low enough for always-on rails in battery-backed equipment.
Built-in protection covers over-temperature, reverse polarity on the input, and output short circuits — three failure modes common in automotive and industrial systems.
No official successor is listed on the record — the closest functional match is the LM2931 series in the same SOIC-8 footprint, but confirm the output voltage range and dropout match your rail budget.