MXD1818XR26

Supervisors Overview

The MXD1818XR26 is a low-power voltage supervisory circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a supply voltage range of up to 5.5 V and features a threshold voltage of 2.55 V with an accuracy of 2.5%. The device provides an active low, open-drain output and includes a reset delay time of 150 ms. It consumes a typical operating supply current of 9 uA and supports overvoltage detection at 2.64 V. The component is housed in a compact SOT-23-3 package and functions reliably across a temperature range from -40°C to +105°C.

Supervisors Feature Summary

• Ultra-low power consumption suitable for battery-operated systems
• Compact three-pin surface-mount packaging for space-constrained designs
• Integrated overvoltage detection capability for enhanced system protection

Supervisors Applications

• Portable electronic devices requiring efficient power monitoring
• Battery-powered instrumentation systems
• Embedded controllers needing reliable voltage supervision

Supervisors Procurement Notes

Verify availability through authorized distributors as stock status may vary. Confirm exact ordering suffixes match required specifications. Check RoHS compliance documentation for regulatory adherence. Ensure package type matches PCB footprint requirements. Validate temperature ratings against operational environment constraints before procurement.

Supervisors Selection Notes

Select this component when low quiescent current is critical for extending battery life. Choose based on the specific 2.55 V threshold requirement for the monitored rail. Consider the open-drain output configuration for compatibility with logic levels. Evaluate the SOT-23-3 package size against board space limitations. Verify that the operating temperature range meets application environmental standards.

Supervisors Part Context

This part belongs to the MXD1818 series of low-power reset circuits. It shares functional similarities with other Maxim Integrated supervisory devices but offers specific threshold and package options. The series is designed for applications where power efficiency and small form factor are prioritized over complex features like watchdog timers or manual resets.

Supervisors Replacement Considerations

Check for direct pin-compatible substitutes within the MXD1818 family with different thresholds. Verify electrical parameters such as threshold voltage and reset delay time against alternative parts. Ensure package dimensions and lead configurations match existing PCB layouts. Confirm manufacturer sourcing channels for equivalent components.