MIC2040-2BMM

Overview

The MIC2040-2BMM 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 up to 500mA continuous output current with a programmable current limit set at 1.5A. The device features a maximum on-resistance of 75mΩ, ensuring efficient power delivery. Key protection mechanisms include thermal shutdown and short-circuit protection. The component utilizes soft-start circuitry to manage inrush currents for capacitive loads and provides a fault status flag for monitoring overcurrent or thermal events. It is housed in a compact SMD/SMT package suitable for surface mount applications.

Feature Summary

• Integrated high-side MOSFET switch optimized for low-voltage power distribution
• Programmable current limiting with adjustable thresholds for load protection
• Built-in thermal shutdown and short-circuit protection circuits
• Soft-start functionality to minimize inrush current during startup

Applications

• General purpose power distribution systems requiring circuit protection
• Multi-port USB applications satisfying upstream and downstream power requirements
• Portable electronic devices operating on low voltage supplies
• Battery-powered equipment needing efficient power management

Procurement Notes

Verify the specific suffix '2BMM' against the official Microchip datasheet to confirm pinout configuration and package dimensions. Ensure the selected variant matches the required operating temperature range and electrical specifications for your design. Cross-reference the manufacturer part number with authorized distributors to guarantee authenticity and traceability. Confirm that the device meets all relevant RoHS compliance standards required for your manufacturing process.

Selection Notes

Select this component when designing circuits that require precise control over high-side switching with integrated protection features. Consider the 75mΩ on-resistance for efficiency calculations and the 1.5A current limit for load capacity planning. Evaluate the need for soft-start capabilities if driving highly capacitive loads to prevent voltage droop. Ensure the operating voltage range aligns with the system's power supply rails and that the fault status output can be monitored by the host controller.

Part Context

The MIC2040 series belongs to Microchip's family of single-channel low-voltage power switches. These devices are designed to replace discrete MOSFET solutions by integrating control logic, protection circuits, and the power switch into a single package. This integration reduces board space and simplifies design complexity while providing robust protection against overcurrent and thermal faults common in portable electronics.

Replacement Considerations

Consult the official Microchip documentation for direct cross-references. Verify compatibility regarding pinout, voltage ratings, and current limits before substituting.