MIC2547-2BTSTR

Overview

The MIC2547-2BTSTR is a dual high-side power switch from Microchip Technology, optimized for low-loss DC power switching. It features two independent outputs with a maximum on-state resistance of 120 mΩ and an output current capacity of 500 mA per channel. The device supports a programmable current limit ranging from 100 mA to 1.5 A, ensuring robust protection against overcurrent conditions. Operating within a supply voltage range of 2.7 V to 5.5 V, it includes fault protection mechanisms such as thermal shutdown and hiccup mode. The component is housed in a 16-TSSOP package and operates reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Dual high-side switch architecture for independent load control
• Programmable current limit for flexible overcurrent protection
• Integrated thermal shutdown and hiccup mode fault protection

Applications

• Advanced Configuration and Power Interface (ACPI) systems
• Low-loss DC power distribution networks
• General-purpose power management applications requiring dual channel isolation

Procurement Notes

Verify the specific suffix 'BTSTR' corresponds to the bulk packaging type and TSSOP-16 package when sourcing. Confirm that the manufacturer designation aligns with Microchip Technology, as historical references may include Microsemi. Ensure the procurement documentation explicitly states the operating temperature range and current limit specifications to match system requirements.

Selection Notes

Select this component for applications requiring dual-channel high-side switching with integrated protection. The programmable current limit allows customization for various load profiles. Consider the 120 mΩ on-resistance for efficiency calculations. The wide input voltage range suits systems powered by standard logic levels or battery sources. Verify compatibility with the required PCB footprint for the 16-TSSOP package.

Part Context

This part belongs to the MIC2546/2547 family of integrated high-side dual power switches. These devices are designed to replace discrete MOSFET solutions, offering a compact alternative for power distribution. The family is optimized for ACPI compliance and general power management tasks, providing a balance between performance, protection, and size in modern electronic designs.

Replacement Considerations

Direct substitutes within the same family include the MIC2546 series for single-channel applications or variants with different packaging options. Verify pinout compatibility and electrical parameters before substitution. Cross-reference with official Microchip replacement guides to ensure functional equivalence in terms of current limits and fault response times.