MIC2043-1BM

Overview

The MIC2043-1BM is a single-channel high-side power distribution switch manufactured by Microchip Technology. It operates within an input voltage range of 0.8V to 5.5V and supports a maximum continuous output current of 1.5A with a programmable current limit up to 3A. The device features a typical on-resistance of 60mΩ and includes integrated thermal shutdown and undervoltage lockout (UVLO) for circuit protection. Packaged in an 8-pin SOIC, it is designed for general-purpose power distribution applications requiring precise load management.

Feature Summary

• Integrates programmable current limiting and thermal shutdown to protect both the switch and the connected load from overcurrent and overheating conditions.
• Features soft-start circuitry to minimize inrush current when powering highly capacitive loads, ensuring stable system startup.
• Includes a fault status flag output that signals overcurrent or thermal shutdown events for system monitoring and diagnostics.

Applications

• General-purpose power distribution circuits
• Multi-port USB power management systems
• Load switching in embedded consumer electronics

Procurement Notes

Verify the specific suffix 'BM' against the official datasheet to confirm package type and tape/reel specifications. Ensure the operating temperature range aligns with your design requirements. Cross-reference the part number with Microchip's official documentation to avoid confusion with similar variants like the YM or YTS series.

Selection Notes

Select this component for applications requiring a single high-side switch with adjustable current limits. It is suitable for low-voltage systems operating between 0.8V and 5.5V. Consider the 8-pin SOIC package for space-constrained designs. Verify that the required current limit setting falls within the programmable range supported by the external resistor configuration.

Part Context

The MIC2043-1BM belongs to the MIC2043 family of single-channel power switches. This series is optimized for low-voltage power distribution, offering protection features such as thermal shutdown and UVLO. The family includes various package options and channel configurations to suit different power management needs in industrial and consumer markets.

Replacement Considerations

Check for direct substitutes within the MIC2043 family, such as the MIC2043-1YM or MIC2043-1BTS, which may offer different packaging or temperature ratings. Ensure any replacement maintains compatibility with the 0.8V to 5.5V input range and the 1.5A continuous current capability.