Military-grade adjustable regulator for harsh environments
The Texas Instruments UC1836L/883B is a Positive Adjustable analog circuit designed for systems requiring a regulated output that can be set with external resistors. Its -55°C to 125°C operating range qualifies it for avionics, satellite, and downhole instrumentation where the ambient temperature swings well beyond commercial or even industrial limits. Rated for a 40V input, the part handles unregulated supply rails common in 28V aircraft buses or 24V industrial backplanes without needing a pre-regulator. The 6mA supply current is the device's own consumption, not the load current — important for power-budget calculations in a multi-rail system where every milliamp counts.
20-PLCC package and board integration
Housed in a 20-lead PLCC (J-Lead) package, the UC1836L/883B uses the industry-standard 9x9 mm body (Supplier Device Package 20-PLCC). The J-lead footprint is solderable with standard reflow profiles and allows visual inspection of the joints — a practical advantage over QFN or BGA for high-reliability builds where post-solder inspection is mandatory. Surface-mount assembly on a 20-LCC footprint means the part sits flush to the board, saving vertical clearance in a densely populated card cage. The Bulk packaging is suitable for prototype runs or low-volume production; for higher volumes, confirm the reel or tube option with your sourcing desk.
This is a current-production part, not a last-time-buy or NRND item, so it remains orderable through authorized distribution channels without an end-of-life clock. The military temperature grade and 883B suffix indicate a screened device — lot traceability and compliance documentation (RoHS, REACH) are available on request.