Microchip Technology’s MCP9501/2/3/4 family devices are temperature switches with ±1°C (typical) accurate factory set output thresholds. These devices are ideal for high-power supply systems where an overtemperature protection circuit is needed. They feature user-selectable hysteresis, various output configurations, and operate from a 2.7V to 5.5V supply. Available in a space-saving 5-lead SOT-23 package, these switches are suitable for power supply critical temperature shutdown, temperature alarm, thermostat control, and fan control applications.