The XC6126N45A7R-G is a Supervisory Integrated Circuit (IC) voltage detector, with open drain, manufactured by Torex Semiconductor. It is a 3-pin ultra small voltage detector for resetting circuits, consisting of a comparator, a reference voltage source, and a reset output transistor. The reset output is asserted when the supply voltage VDD drops below the reset voltage level, VTH. The reset remains asserted until the supply voltage VDD rises above the reset voltage level, VTH, by more than a preset hysteresis voltage ?VM. The reset output can be set from 1.5V to 5V in 0.4V increments. The XC6126N45A7R-G can also be used for undervoltage lockout to protect circuits from damage due to low voltage operations. Additionally, it can be connected directly to the circuit to detect the supply voltage, as well as connected in series with a clock oscillator or other circuits. This IC also features a low supply current and low power consumption.