What the 50 mA, 40 V input, and 20 µA Iq mean for the BOM
The LM9036M-5.0/NOPB: Rated for 50 mA continuous output with a fixed 5 V rail — this suits low-power always-on domains like a CAN transceiver supply, a microcontroller's analog section, or a sensor bias line where the load stays under 50 mA. Quiescent current is 20 µA typical — the regulator's own draw is low enough that it can be left powered from a battery without draining it during long idle periods. Dropout voltage is 0.40 V maximum at the full 50 mA load, meaning the input rail can sag to 5.4 V before the output falls out of regulation.
Protection features and temperature range
On-chip protection includes over-temperature shutdown, reverse-polarity blocking, and short-circuit current limiting — the regulator survives a sustained output short or a reversed battery connection without external protection diodes in most cases. Operating temperature spans -40°C to 125°C, qualifying it for under-hood automotive, industrial enclosure, and outdoor telecom environments.
The supplier device package is 8-SOIC; the part is shipped in tube format.
Compliance and documentation
Texas Instruments certifies the LM9036M-5.0/NOPB as ROHS3 compliant — no exemptions for lead, cadmium, or phthalates. The standard TI datasheet provides electrical characteristics, typical application circuits, and thermal derating curves.