View mic2774 datasheet:

MIC2774 Micrel MIC2774 Dual Micro-Power Low Voltage Supervisor Final Information General Description Features The MIC2774 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 • Choice of factory-programmed thresholds adjustable, and a choice of reset outputs. One under-voltage • Adjustable input can monitor supplies as low as 0.3V detector compares VDD against a fixed threshold. Ten fac- • Generates 140ms (minimum) power-on reset pulse tory-programmed thresholds are available. The second, user-