MIC2077-1YWM-TR

Overview

The MIC2077-1YWM-TR is a quad USB high-side power switch manufactured by Microchip Technology. It provides four independent channels with a maximum current limit of 900 mA per channel. The device operates within a supply voltage range of 2.7 V to 5.5 V and features a maximum on-resistance of 150 mΩ. Key timing parameters include a maximum turn-on time of 5 ms and a maximum off-time of 100 µs. It is housed in a 16-pin SOIC-Wide package and supports surface mount installation across an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates four independent high-side N-channel MOSFET switches for distributed power management
• Provides fixed current limiting protection to prevent overcurrent conditions
• Features controlled slew rate to minimize inrush current during turn-on
• Includes thermal shutdown and under-voltage lockout for enhanced reliability

Applications

• USB hub power distribution circuits
• Peripheral port protection in consumer electronics
• Industrial I/O board power switching
• General-purpose load switching applications

Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging when ordering. Confirm the 'W' designation corresponds to the wide SOIC package variant. Ensure compatibility with the required 2.7V to 5.5V supply rails. Check RoHS compliance status against current manufacturing standards. Validate pinout alignment with target PCB footprint before finalizing procurement.

Selection Notes

Select this component when four isolated high-side switches are required for USB or low-voltage loads. The 900 mA limit suits standard peripheral devices rather than high-power buses. Consider the 150 mΩ on-resistance for thermal dissipation calculations. The SOIC-Wide package facilitates easier manual assembly compared to smaller footprints. Evaluate the 5 ms turn-on time against system inrush requirements.

Part Context

This part belongs to the MIC2077 family of quad power switches designed for circuit protection. It serves as a robust alternative to discrete MOSFET solutions, integrating control logic and protection features. The device simplifies board space requirements by consolidating four channels into a single IC. It is commonly used in systems requiring reliable power distribution with built-in fault handling capabilities.

Replacement Considerations

The MIC2077-1YM is a tube-packaged equivalent offering identical electrical specifications. Verify package compatibility between SOIC-Wide variants if substituting. Cross-reference current limits and on-resistance values to ensure performance parity. Confirm that interface signals and pinouts remain consistent across replacement options.