MIC5018BM4 TR

Overview

The MIC5018BM4TR is a high-side MOSFET driver manufactured by Microchip Technology. It integrates a P-channel power switch with control logic in an 8-pin SOIC package. The device provides a fixed 4V output voltage and supports a continuous load current of 2A. It operates within an input voltage range of 3V to 26V. Key electrical parameters include a maximum on-resistance of 0.17 ohms and a typical dropout voltage of 0.3V at full load. The unit functions reliably across an extended temperature range from -40°C to +85°C.

Feature Summary

• Integrates a P-channel power switch with dedicated control logic for simplified circuit design
• Provides precise fixed output regulation at 4V for downstream components
• Features built-in protection mechanisms including thermal shutdown and current limiting

Applications

• Power distribution units requiring isolated switching
• Battery-powered systems needing efficient power management
• Industrial equipment utilizing standard logic-level control interfaces

Procurement Notes

Verify the specific suffix 'TR' indicates tape and reel packaging configuration when placing orders. Confirm that the 'BM4' designation corresponds to the fixed 4V output variant required for the target application. Ensure compatibility with the 8-pin SOIC footprint during PCB layout verification. Cross-reference the manufacturer datasheet for handling precautions related to electrostatic discharge sensitivity.

Selection Notes

Select this component when a compact, integrated solution for high-side switching is required. It is suitable for applications demanding a fixed 4V rail derived from a higher bus voltage up to 26V. Consider the 2A current capability and low on-resistance for efficiency-critical designs. Evaluate the thermal performance within the SOIC-8 package constraints against the expected ambient operating conditions.

Part Context

This part belongs to the MIC5018 family of high-side switches designed by Microchip Technology. These devices are engineered to replace traditional discrete MOSFET and driver combinations. The series offers various fixed output voltages to accommodate different logic families. The MIC5018BM4TR specifically addresses needs for stable 4V regulation in space-constrained environments.

Replacement Considerations

Direct substitutes may include other MIC5018 variants with different fixed output voltages if system requirements change. Verify pinout compatibility before swapping with similar high-side drivers from alternative manufacturers. Check if updated revisions of the component offer improved thermal characteristics or packaging options.