Two-rail supervisor in a SOT-23-6 — what it does and where it fits
The Maxim Integrated MAX6830ZWUT is a multi-voltage supervisor that monitors two independent supply rails and asserts an active-high reset when either voltage drops below its threshold. It is designed for systems that need reliable power-on reset and brownout protection across multiple voltage domains — common in mixed-voltage designs like FPGA-based boards, multi-rail MCU systems, and telecom line cards where a single supervisor IC replaces two discrete reset generators. The reset timeout is a minimum of 140ms, which gives the downstream processor or FPGA enough time to stabilize after the rails come up before the reset is released. Operating temperature spans -40°C to 125°C, so this part works in outdoor telecom cabinets, engine-bay electronics, and industrial controllers without derating concerns.
Package and footprint — SOT-23-6
Housed in a 6-pin SOT-23 surface-mount package, the MAX6830ZWUT occupies minimal board area — roughly 3mm x 3mm. The supplier device package is also SOT-23-6, so the footprint is consistent across distributors. This is a small-outline package suited for dense PCB layouts where every square millimeter counts.
Lifecycle and sourcing — active, no LTB risk
The MAX6830ZWUT is listed as Active in production status. Note that this variant is RoHS non-compliant. If your assembly line requires RoHS compliance, verify the solder process compatibility or consider a RoHS-compliant variant in the same family.