MIC2039BYMT-T5

Overview

The MIC2039BYMT-T5 is a high-side power distribution switch manufactured by Microchip Technology. It provides system reliability through high-accuracy current limiting and thermal protection. The device operates within an input voltage range of 2.5V to 5.5V and features an adjustable output current limit programmable via an external resistor, supporting values from 0.2A to 2.5A. It includes a Kickstart feature for handling high inrush currents during startup or steady-state operation. The IC offers open-drain fault status output with a built-in delay and supports both active-high and active-low logic level enable inputs. It is housed in a compact SOT-23-6 package and operates across a junction temperature range of -40°C to +125°C.

Feature Summary

• High-accuracy current limiting with ±5% tolerance for enhanced system reliability
• Adjustable output current limit programmable from 0.2A to 2.5A using an external resistor
• Kickstart feature allows momentary high-current surges up to the secondary limit for charging capacitive loads
• Integrated thermal shutdown and constant current-limit mode for comprehensive protection

Applications

• Power distribution in systems requiring precise overcurrent protection
• Charging loads with high inrush currents such as large capacitors
• Hot-swap applications where controlled current limiting is required
• General-purpose power switching in industrial and consumer electronics

Procurement Notes

Verify the specific suffix 'BYMT' against the official Microchip datasheet to confirm package type and tape/reel specifications. Ensure the ordering part number matches the exact pinout and electrical characteristics required for your design. Cross-reference the manufacturer's latest documentation to confirm availability and any potential lifecycle changes or obsolescence notices before finalizing procurement plans.

Selection Notes

Select this component when high-side switching with adjustable current limiting is required. It is suitable for applications needing precise current control and protection against overcurrent and thermal events. Consider the adjustable current range and the need for a Kickstart feature if driving capacitive loads. Verify that the operating voltage range and package size fit within the system constraints.

Part Context

The MIC2039 series belongs to Microchip's portfolio of high-side power switches designed for robust power distribution. These devices integrate MOSFET technology with control circuitry to provide accurate current limiting and thermal shutdown. The BYMT variant specifically denotes the SOT-23-6 surface-mount package configuration, optimized for space-constrained designs requiring reliable power management capabilities.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult Microchip's official cross-reference tools or distributor databases for verified alternatives.