Open-drain inverting buffer with military temperature range
The Texas Instruments SN74LVC1G06MDCKREP is a single-gate inverting buffer with an open-drain output, part of the 74LVC logic family. The open-drain output can sink 32 mA, making it useful for level translation between 1.8V, 2.5V, 3.3V, and 5V logic domains, as well as driving LEDs, optocouplers, or small relays directly.
At 1.8V it interfaces with low-power MCUs and FPGAs; at 3.3V or 5V it drives standard CMOS or TTL inputs. The open-drain output allows wired-OR connections and pull-up to a different voltage than VCC, enabling bidirectional level translation with an external resistor.
SC-70-5 package — footprint and layout notes
Housed in a 5-pin SC-70-5 (SOT-353) package, this part occupies minimal board area — roughly 2.0 mm × 2.1 mm. The small footprint suits dense layouts, but the thermal pad is absent, so all heat dissipates through the leads. With 32 mA sink current and a junction-to-ambient thermal resistance typical of SC-70-5, continuous operation near the maximum sink current at 125°C ambient should be verified against the power dissipation limit in the datasheet. Surface-mount assembly is standard;.
For production programs that require multi-year supply assurance, this part presents no imminent obsolescence risk. The base product number 74LVC1G06 is a standard TI catalog item with broad distribution support.