What is the MAX6457UKD0A+T?
The MAX6457UKD0A+T is a single-channel simple reset/power-on reset supervisor from Analog Devices. The active-low reset output is open-drain, so it can be pulled up to any voltage compatible with downstream logic — useful for mixed-voltage systems where the supervisor and the monitored rail share different supply domains. The reset timeout is 50 µs typical, meaning the output stays asserted for that duration after the monitored voltage recovers above threshold, ensuring the system has time to stabilize before the processor or peripheral is released from reset.
Housed in a 5-lead SOT-23 package (SOT-753, SC-74A), the MAX6457UKD0A+T occupies minimal board area — about 3.0 mm × 3.0 mm footprint — suited for space-constrained designs like sensor nodes, portable instruments, and embedded controllers. No derating is needed across the range for the supervisor function itself.
ROHS3 compliant — no restricted substances above the threshold limits under EU Directive 2011/65/EU, including the four phthalates added in the 2015 amendment.