BUY MB1501 https://www.utsource.net/itm/p/46889.html
SERIAL INPUT PLL FREQUENCY SYNTHESIZER
Description: MB1501 is a Negative Voltage Detector IC manufactured by FUJI. Features: * Low quiescent current consumption (31μA (typ.)) * Built-in delay circuit * Built-in low voltage reset circuit * Reset output voltage (VOH) is adjustable : VOH = 3.2V to 5.5V (typ.) (application current is 100mV max, at VOH=4V) * Built-in timer circuit * Reset output voltage (VOH) is adjustable : VOH = 3.2V to 5.5V (typ.) * Output polarity : Open collector (N channel) Applications: * Personal computers * Office automation equipment * Home appliances * Industrial equipment * Automotive electronics (For reference only)