MIC2545A-2BM TR

Overview

The MIC2545A-2BM TR is a single high-side N-channel power switch/driver designed for efficient power distribution. It features an adjustable current limit ranging from 500 mA to 3 A, allowing for precise load protection. The device operates within a supply voltage range of 2.7 V to 5.5 V and supports a maximum output current of 500 mA continuously. Key electrical parameters include a maximum on-resistance of 50 mΩ, a maximum turn-on time of 5 ms, and a maximum turn-off time of 25 µs. It is housed in an 8-SOIC package and functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• High-side N-channel power switch with integrated driver functionality
• Adjustable current limit capability for customizable load protection
• Low on-resistance design for improved power efficiency
• Fast switching times with defined turn-on and turn-off characteristics

Applications

• Power distribution systems requiring programmable current limiting
• Embedded systems needing high-side switching control
• Industrial equipment with multiple load protection requirements
• Consumer electronics utilizing low-voltage power management

Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging when ordering. Confirm that the '2BM' designation corresponds to the correct pinout and thermal specifications for your PCB layout. Ensure the input voltage does not exceed the 5.5 V absolute maximum rating during operation. Cross-reference the datasheet for the exact current limit adjustment resistor values required for your application.

Selection Notes

Select this component when a single-channel high-side switch with adjustable current limiting is required. It is suitable for applications where space is constrained due to its compact SOIC-8 package. Consider the 2.7 V to 5.5 V operating range to ensure compatibility with your system's logic levels. Evaluate the 50 mΩ on-resistance against your power loss constraints.

Part Context

This part belongs to the MIC2545A series of power switches, which are designed for versatile power distribution tasks. The series offers various packages and configurations to suit different integration needs. The MIC2545A-2BM TR specifically provides a surface-mount solution with tape-and-reel delivery for automated assembly processes.

Replacement Considerations

Check for direct substitutes such as the MIC2545A-2YM or MIC2545A-2YN if different packaging or lead-free options are needed. Verify functional equivalence regarding current limits and voltage ranges before swapping components.