The MIC2777 is a dual power supply supervisor that provides under-voltage monitoring, manual reset capability, and power- on reset generation in a compact 5-pin SOT package. Fea- tures include two under-voltage detectors, one fixed and one adjustable, and both active-high and active-low reset outputs. One under-voltage detector compares VDD against a fixed threshold. Ten factory-programmed thresholds are available. The other under-voltage detector is user-adjustable. The reset outputs are asserted for no less than 140ms at power-on and any time V DD or the input voltage drops below the corresponding reference voltage. They remain asserted for the timeout period after the input voltage and V DD sub- sequently rise back above the threshold boundaries. A reset can be generated at any time by pulling down on the adjust- able input. Hysteresis is included to prevent chattering due to noise. Typical supply current is a low 3.5μA.