MIC94091YMT-TR

Overview

The MIC94091YMT-TR is a high-side load switch manufactured by Microchip Technology. It provides a single output capable of delivering up to 1.2A with an on-resistance of 0.26 Ohms. The device operates within an input voltage range of 1.7V to 5.5V and features a supply current of 1200mA. It is designed for surface-mount installation in a 4-pin TDFN EP package, measuring 1.2mm in length and 0.55mm in height. The component supports an operating temperature range from -40°C to 125°C.

Feature Summary

• High-side power distribution switching capability
• Integrated protection against short circuits and overcurrent conditions
• Compact surface-mount packaging for space-constrained designs

Applications

• Portable electronic devices requiring efficient power management
• Industrial control systems needing reliable load switching
• Automotive electronics applications

Procurement Notes

Verify the specific ordering suffix to ensure correct packaging configuration. Confirm RoHS compliance status as per the latest manufacturer documentation. Check for any recent Product Change Notices (PCNs) regarding assembly or material updates. Ensure the supplier source is authorized to guarantee part authenticity and traceability.

Selection Notes

Select this component when a compact high-side switch with moderate current capacity is required. Consider the 0.26 Ohm on-resistance for thermal management calculations. Evaluate the 1.7V minimum input voltage against system rail requirements. The exposed pad design aids in thermal dissipation for dense PCB layouts.

Part Context

This part belongs to Microchip's power switch family, derived from Micrel technology. It serves as a general-purpose load switch for distributing power in low-voltage systems. The device integrates protection features typically found in more complex power management ICs, offering a simplified solution for basic load control tasks.

Replacement Considerations

Check for direct pin-compatible substitutes within the same product line. Verify that alternative parts meet the 1.2A current and 5.5V voltage specifications. Ensure thermal performance characteristics are comparable for equivalent PCB footprints.