What this supervisor does on your board
The Maxim Integrated MAX6763UT+T is a single-channel voltage supervisor that asserts a reset signal when the monitored supply drops below a programmed threshold. It holds the reset output for an adjustable timeout period after the supply recovers, giving your microcontroller or SoC time to stabilize before code execution starts. The output is push-pull, active low — no external pull-up needed, and the logic level matches 1.8V to 5V systems directly. Both the reset threshold and the timeout period are set with external resistors or capacitors, so one part number covers multiple rail voltages and processor boot-up timing requirements. That flexibility cuts BOM line count if you standardize on this supervisor across designs with different MCUs. The -40°C to 125°C operating range puts it in the industrial and automotive auxiliary category — motor drives, outdoor telecom gear, engine-bay ECUs, or any environment where the PCB sees temperature swings. The SOT-23-6 package fits tight layouts; the 6-pin footprint is a common supervisor pattern, easy to route on a two-layer board.
Sourcing posture and lifecycle
The MAX6763UT+T carries an active lifecycle status with ROHS3 compliance. It remains suitable for both new-design qualification and production replenishment. The part is sourced through independent distribution and quoted to order against an RFQ. Because this is an active, widely-used supervisor, date-code consistency across reels is generally good. If you are qualifying a new build, request a lot traceability statement with your quote — standard practice for production BOM lines.
Adjustable timeout and threshold — what it means for your BOM
The adjustable reset timeout is set with an external capacitor. The adjustable threshold is set with an external resistor divider. This means a single MAX6763UT+T line item on your BOM can serve multiple designs, reducing procurement complexity. The trade-off is two additional external passives per channel versus a fixed-threshold supervisor. For a single-rail monitor, the board area impact is negligible.
Integration note for 3.3V ARM MCUs
This single-channel device monitors one voltage only.