MAX6312UK46D3

Supervisors Overview

The MAX6312UK46D3 is a CMOS microprocessor supervisory circuit designed to monitor power supplies. It operates within a supply voltage range of 2.7V to 5.5V and features a fixed reset threshold of 4.63V. The device provides an active-low, open-drain reset output with a typical delay of 140ms. It consumes 8µA of supply current and is housed in a compact SOT-23-5 package.

Supervisors Feature Summary

• Monitors multiple power supplies and asserts reset if any fall outside programmed thresholds
• Immune to fast transients on monitored supplies
• Guaranteed RESET valid down to VCC = 1V
• Manual reset input capability

Supervisors Applications

• Personal computer systems monitoring 5V and 3.3V rails
• Portable applications requiring low supply current
• Embedded systems requiring reliable power supervision

Supervisors Procurement Notes

Verify the exact suffix D3 against official Analog Devices documentation to confirm the specific factory-programmed threshold voltage and timeout period. Cross-reference the manufacturer part number with authorized distributors to ensure authenticity and check for obsolescence status before procurement.

Supervisors Selection Notes

Select this component when a fixed 4.63V threshold is required for system supervision. Ensure the application does not need a watchdog timer or battery backup switch, as these features are absent. Verify that the SOT-23-5 package fits the PCB layout constraints.

Supervisors Part Context

Part of the MAX6305–MAX6313 family of 5-pin, multiple-input programmable reset ICs from Maxim Integrated. These devices are optimized for portable electronics due to their small footprint and low power consumption.

Supervisors Replacement Considerations

Check for other variants within the MAX6312 series with different suffixes (e.g., UK31, UK48) if the 4.63V threshold is not suitable. Verify pinout compatibility with alternative supervisory ICs from Analog Devices.