MIC94085YFT-TR

Overview

The MIC94085YFT-TR is a high-side load switch manufactured by Microchip Technology, designed for power distribution applications. It features a P-channel output capable of handling up to 2A of continuous current with a typical on-resistance of 67 milliohms. The device operates within a load voltage range of 1.7V to 5.5V and utilizes a non-inverting interface. Packaged in a compact 4-TMLF (0.85x0.85) surface-mount format, it supports an operating junction temperature range from -40°C to 125°C. Key functional characteristics include controlled slew rate and load release capabilities, ensuring stable power management in space-constrained designs.

Feature Summary

• High-side power switching topology with P-channel MOSFET output
• Integrated controlled slew rate functionality to minimize inrush current
• Load release feature for safe discharge of external capacitance
• Non-inverting input interface for direct logic control

Applications

• Portable consumer electronics power management
• USB hub and peripheral power switching
• Battery-powered equipment load protection
• General-purpose high-side distribution circuits

Procurement Notes

Verify the specific ordering suffix matches the required tape and reel configuration for automated assembly processes. Confirm that the 4-TMLF package dimensions align with the target PCB footprint and thermal requirements. Ensure the supply chain source provides valid traceability documentation consistent with Microchip Technology standards. Cross-reference the component marking code against official manufacturer databases to authenticate the part before integration into production lines.

Selection Notes

Select this component when a low-profile, high-current high-side switch is required for voltages up to 5.5V. The 67mΩ on-resistance offers efficient power delivery for loads drawing up to 2A. Consider the controlled slew rate feature if system stability during turn-on is critical. The small 4-TMLF package is suitable for dense layouts where standard SOIC or QFN packages are too large. Evaluate thermal performance based on the specific PCB copper area available for heat dissipation.

Part Context

This part belongs to the MIC9408x series of high-side load switches from Microchip Technology. The series includes variants with different current ratings and resistance values, such as the MIC94081 and MIC94083. These devices share similar architectural features including controlled slew rates and compact packaging options. The MIC94085 specifically targets applications requiring higher current capacity compared to lower-rated siblings while maintaining the same small form factor and interface compatibility.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the available documentation.