Microchip 1 Voltage Supervisor Power On Reset Circuit 3-Pin SOT-23 2.6 V Reset Threshold MIC803-26D2VM3-TR

Microchip MIC803-26D2VM3-TR voltage supervisor is a high-precision single supervisor device designed for microprocessor-based systems to provide power supply monitoring and system reset generation. It features a 3-pin SOT-23 package offering compact form factor suitable for space-constrained environments.

This device asserts a reset signal via an open-drain RESET output whenever the monitored voltage falls below the 2.6 V reset threshold voltage. The reset signal remains asserted for a defined active timeout period even if voltage recovers above the threshold, ensuring system stability during power fluctuations.

The MIC803-26D2VM3-TR operates with exceptionally low current consumption of approximately 4.5 μA typically at 3.6 V supply, making it ideal for battery-powered and low power applications. Its supply voltage range spans from a minimum of 1 V up to a maximum of 5.5 V, supporting diverse power system designs.

The unit supports multiple reset timeout options (20 ms, 140 ms, and 1120 ms) allowing designers to select appropriate timing for their application requirements. It guarantees voltage threshold accuracy within ±2.5% over the entire -40°C to +125°C junction temperature range, ensuring reliable operation in harsh industrial and automotive environments (though this device is not automotive standard certified).

Physical dimensions are compact with a length of 2.3 mm and width of 2.9 mm, in a standard industry SOT-23 package solderable onto printed circuit boards. It contains a single supervisor function without watchdog timer or manual reset features, focused on power-on reset circuit functionality.

Typical applications include industrial controls, embedded systems, telecommunications equipment, and general power monitoring tasks where accurate voltage supervision and minimal power consumption are critical.

Provides reliable reset signal when power supply voltage drops below threshold. Features low 4.5 μA typical supply current at 3.6 V. Open-drain RESET output ensures system reset integrity. Available with preset voltage thresholds from 2.63 V to 4.63 V.

Supports a wide operating temperature range from -40°C to 125°C. Reset active timeout options include 20 ms, 140 ms, and 1120 ms. Compact SOT-23 package with 3 pins measures 2.3 mm length and 2.9 mm width. Operates with supply voltage from 1 V to 5.5 V.

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