Microchip Voltage Supervisor 1 Supervisor, 3-Pin, 3.08 V Reset Threshold, SOT-23 Package MIC803-31D2VM3-TR

Microchip MIC803-31D2VM3-TR is a high-precision single voltage supervisor designed for microprocessor-based systems that require monitoring and reset generation with minimal power consumption. The device has a 3-pin SOT-23 package optimizing board space and integration in compact electronic designs.

This voltage supervisor continuously monitors the power supply voltage, and asserts a reset signal via an open-drain output whenever the monitored voltage falls below the specified reset threshold of 3.08 V. The reset signal remains asserted for a minimum active time of 1120 ms, providing stable reset conditions during power fluctuations.

It operates over a broad ambient temperature range from -40°C to 125°C, making it suitable for industrial and commercial applications where temperature reliability is critical. The low typical supply current of 4.5 μA at 3.6 V enables energy-efficient designs in battery-operated or low-power systems.

The MIC803 series offers preset voltage thresholds ranging from 2.63 V to 4.63 V with an accuracy of ±2.5% across the entire temperature range. These features ensure consistent and reliable power-on reset functionality in demanding environments.

With a compact footprint measuring 2.3 mm by 2.9 mm, this device fits easily on densely packed PCBs and supports efficient space management in electronic assemblies. Its RoHS compliance further confirms adherence to environmental standards.

The device monitors supply voltage with 1V minimum operating voltage. Features an open drain RESET output for reliable reset signal assertion. 1120 ms minimum reset active time ensures stable system reset. Wide operating temperature range of -40°C to 125°C supports harsh conditions.

Low supply current of 4.5 μA at 3.6 V enhances power efficiency.

Typical applications include industrial electronics, power management systems, and embedded microcontroller power monitoring. This precise voltage supervisor aids in preventing system malfunction by providing accurate reset control during power anomalies.

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