MCP1623T-I/MC

Overview

The MCP1623T-I/MC is a synchronous boost switching regulator manufactured by Microchip Technology, housed in an 8-pin DFN package. It operates with an input voltage range of 0.65 V to 5.5 V and provides an adjustable output voltage between 2 V and 5.5 V. The device delivers a maximum output current of 50 mA with a typical quiescent current of 19 uA. It features a fixed switching frequency of 500 kHz and supports AEC-Q100 qualification for automotive applications. The operational temperature range extends from -40°C to +125°C, ensuring reliability in demanding environments.

Feature Summary

• Synchronous boost topology for high efficiency
• True output disconnect functionality
• Low quiescent current operation
• Automotive grade AEC-Q100 qualification

Applications

• Battery-powered microcontroller systems
• Automotive electronics requiring AEC-Q100 compliance
• Portable devices needing efficient low-voltage step-up
• IoT sensors utilizing single-cell battery sources

Procurement Notes

Verify the specific suffix 'I/MC' corresponds to the industrial temperature range and DFN-8 package configuration. Confirm that the ordering part number includes the 'T' designation for tape and reel packaging if required for automated assembly processes. Cross-reference the manufacturer datasheet to ensure compatibility with your system's input voltage constraints and load requirements before finalizing procurement.

Selection Notes

Select this component when a compact synchronous boost solution is needed for low-current applications up to 50 mA. The fixed 500 kHz frequency allows for smaller external passive components compared to lower-frequency alternatives. Consider the 0.65 V minimum input voltage capability for energy harvesting or partially discharged battery scenarios. Ensure the thermal performance of the DFN-8 package meets the thermal dissipation needs of the target application environment.

Part Context

This part belongs to the MCP1623/24 family of synchronous boost converters designed for space-constrained, low-power applications. It complements other regulators in the portfolio by offering true output disconnect to prevent reverse leakage currents. The family targets applications requiring efficient power management from single-cell lithium-ion or alkaline batteries where size and efficiency are critical design parameters.

Replacement Considerations

Public confirmed substitute part numbers: MCP1623T-E/MC.