MIC2545A-1BM-TR

Overview

The MIC2545A-1BM-TR is a single-channel high-side power switch from Microchip Technology, housed in an 8-SOIC surface-mount package. It operates within a supply voltage range of 2.7 V to 5.5 V and supports a maximum continuous output current of 500 mA. The device features an adjustable current limit ranging from 500 mA to 3 A and a typical on-resistance of 50 mΩ. Key electrical parameters include a maximum turn-on time of 5 ms and a maximum blanking time of 25 µs. It functions across a temperature range of -40°C to +85°C.

Feature Summary

• Integrated programmable current limiting for precise load protection
• Slew rate controlled turn-on to minimize inrush current
• Built-in fault protection including over-temperature and reverse current blocking

Applications

• DC power distribution systems
• Load switching in embedded electronics
• Power management in industrial control units

Procurement Notes

Verify the specific suffix '-TR' indicates tape-and-reel packaging when sourcing components. Confirm that the manufacturer designation aligns with Microchip Technology following their acquisition of Micrel. Ensure the component meets RoHS compliance standards as specified in the official datasheet documentation before finalizing procurement orders.

Selection Notes

Select this component for applications requiring a single-channel high-side switch with adjustable current limits. It is suitable for low-voltage DC systems operating between 2.7 V and 5.5 V. Consider the 8-SOIC package for surface-mount assembly requirements. Evaluate the thermal performance and current rating against the specific load profile to ensure reliable operation within the specified temperature range.

Part Context

This part belongs to the MIC2545A series of integrated high-side power switches. These devices are optimized for low-loss DC power switching and general power-management applications. The series provides robust protection features and efficient switching capabilities for modern electronic designs requiring precise power control.

Replacement Considerations

Publicly confirmed substitute part numbers for the MIC2545A-1BM-TR are not available in the provided source material. Verify compatibility with alternative high-side switches based on pinout, voltage ratings, and current limits if substitution is required.