CN809J is a SOT23-3 RoHS (Restriction of Hazardous Substances) compliant Power Management Integrated Circuit (PMIC) produced by Consonance. It is a Voltage Supervisor chip designed to provide reset and power-on reset signals. It is designed to regulate and monitor system voltage levels and to ensure the safe operation of digital electronic applications including PC peripherals, consumer electronics, and networking equipment. The CN809J features adjustable reset and power-on reset thresholds, open-drain active-low reset output, and low power consumption. It is ideal for applications with frequent power surges, since its design ensures continual reset of the system to established voltage levels.