Maxim's MAX16050 monitors up to 5 voltages and sequences up to 4 voltages. It provides an adjustable delay as each supply is turned on and also monitors each power-supply voltage, including the input voltage V_CC. When all the voltages reach their final values and the reset delay timer expires, a power-on-reset (active-low RESET) output de-asserts allowing the microcontroller (MCU) to operate. If any voltage falls below its threshold, the reset output asserts and all voltage supplies are turned off. The MAX16050 can be daisy-chained to control a higher number of voltages in a system.