Triple-rail supervisor in a five-pin package
The MAX6743XKTGD3+: When any monitored voltage drops below its threshold, the part asserts an active-low reset output — push-pull, totem pole style, so no external pull-up resistor is needed on the reset line.
What the thresholds mean for a three-rail system
The fixed 1.11V threshold covers a 1.2V core rail — typical for low-voltage FPGAs or MCUs — while the 3.075V threshold suits a 3.3V I/O or peripheral supply. The adjustable channel lets you monitor a third rail at any voltage down to about 0.6V, set by two resistors. That could be a 1.8V PLL supply, a 2.5V memory rail, or a 5V analog bus — whatever the board needs. With three channels in one SC-70-5 package, you save board space and routing complexity compared to stacking three single-voltage supervisors.
Temperature range and where it fits
The SC-70-5 (SOT-353) footprint is small enough to tuck next to the processor it supervises, keeping the reset trace short and reducing noise pickup on the sense lines.
Availability and current pricing confirmed at RFQ time.