The MIC803-30D2VM3-TR is a single-voltage supervisor circuit designed for accurate power supply monitoring and reset generation in microprocessor-based systems. It asserts a reset signal if the power supply drops below its factory-programmed 3.00V threshold and holds the reset for a minimum of 20ms after the voltage has recovered. This device features an open-drain /RESET output that remains valid with VCC as low as 1V and consumes a low supply current of just 4.5µA. Housed in a compact SOT-23-3 package and operating from -40°C to +125°C, it is well-suited for critical power monitoring in portable equipment, embedded controllers, and solid-state drives.