What this 12V fixed LDO brings to a power rail
The MIC29300-12WT is a single-output positive linear regulator delivering a fixed 12V at up to 3A continuous. The maximum dropout voltage is 0.6V at the full 3A load, meaning the input rail needs at least 12.6V to maintain regulation — a tight headroom that keeps the pass element dissipation manageable in a TO-220-3 package. Operating temperature spans -40°C to 125°C, so this regulator fits industrial enclosures, outdoor telecom cabinets, and engine-bay electronics where the ambient can swing well beyond commercial limits.
Protection features and thermal design margin
On-chip protection covers over-current, over-temperature, reverse polarity, and transient voltage. The over-temperature shutdown gives the board a thermal budget safety net if the heatsinking is marginal — the TO-220 tab can be bolted to a chassis or a dedicated heatsink for high-current operation. Maximum input voltage is 26V, so the part can run from a 24V industrial bus with enough headroom for transients without needing a pre-regulator.
Sourcing status and package format
The part is sourced to order; no stock-holding claim is made here.