View mic2777 datasheet:

MIC2777 Micrel MIC2777 Dual Micro-Power Low Voltage Supervisor Final Information General Description Features The MIC2777 is a dual power supply supervisor that provides • Monitors two independent power supplies for under- under-voltage monitoring, manual reset capability, and power- voltage conditions on reset generation in a compact 5-pin SOT package. Fea- • One fixed and one user adjustable input tures include two under-voltage detectors, one fixed and one • 1.5% theshold accuracy adjustable, and both active-high and active-low reset out- • Choice of factory-programmed thresholds puts. One under-voltage detector compares VDD against a • User-adjustable input can monitor supplies as low as fixed threshold. Ten factory-programmed thresholds are avail- 0.3V able. The other unde