MAX6306UK47D3+

Supervisors Overview

The MAX6306UK47D3+ is a CMOS microprocessor supervisory circuit designed to monitor multiple power supplies. It features two monitored inputs with a fixed reset threshold voltage of 4.7V. The device provides an active-low, open-drain output and includes a manual reset input. It operates within a supply voltage range up to 5.5V and consumes low quiescent current. Packaged in a compact SOT-23-5 surface-mount case, it is suitable for portable applications requiring reliable voltage supervision.

Supervisors Feature Summary

• Monitors multiple power supply rails simultaneously
• Provides system reset assertion when voltages fall below programmed thresholds
• Includes manual reset input for external control
• Designed to ignore fast transients on monitored supplies

Supervisors Applications

• Personal computer systems monitoring 5V and 3.3V supplies
• Portable electronic devices requiring low supply current
• Multi-voltage embedded systems requiring reliable reset sequencing

Supervisors Procurement Notes

Verify the specific suffix D3+ against the manufacturer's official datasheet to confirm the exact threshold voltage and package variant. Ensure compatibility with existing PCB footprints for the SOT-23-5 package. Confirm RoHS compliance status through the latest component documentation before integration into production designs.

Supervisors Selection Notes

Select this component when simultaneous monitoring of two distinct voltage rails is required. The fixed 4.7V threshold suits applications where one rail requires supervision at this specific level. Consider the open-drain output configuration for interfacing with various logic families. Verify that the manual reset feature aligns with the system's reset strategy.

Supervisors Part Context

This part belongs to the MAX6305–MAX6313 family of 5-pin, multiple-input, programmable reset ICs from Maxim Integrated (now Analog Devices). These circuits are engineered for microprocessor supervision in environments with multiple power domains. The family offers various factory-programmed thresholds to accommodate different standard voltage levels without external components.

Supervisors Replacement Considerations

Check for MAX6306 variants with different threshold suffixes if the 4.7V setting does not match the target rail. Other parts in the MAX6305–MAX6313 series may offer alternative thresholds or additional features like watchdog timers, though pinouts remain consistent.