Three-rail supervisor in a SOT-23-8 footprint
The MAX6703TKA-T: It asserts a common active-low reset output when any monitored voltage drops below its threshold. The threshold voltages are factory-programmed at 3.08 V on one channel, with the remaining two channels adjustable via external resistor dividers — giving flexibility to sequence or monitor non-standard rails alongside the fixed 3.3 V or 3.0 V supply.
Temperature range and reset timing
The reset timeout is a minimum of 140 ms after all monitored voltages rise above their thresholds. This delay holds the system in reset long enough for the power supplies to stabilise before the processor starts executing code.
For lead-free assembly lines, verify the exemption category or evaluate the MAX6703TKA+ (with a '+' suffix) if a RoHS-compliant variant is required.