MIC94081YFT-TR

Overview

The MIC94081YFT-TR is a high-side load switch IC from Microchip Technology, designed for power distribution applications. It features a P-channel MOSFET with a typical on-resistance of 67mΩ and supports an output current of up to 2A. The device operates within a supply voltage range of 1.7V to 5.5V and is available in a UDFN-4 surface-mount package. Key electrical parameters include a maximum on-time of 1.5µs and a maximum off-time of 200ns. It functions reliably across an extended temperature range from -40°C to +125°C.

Feature Summary

• Integrates a P-channel MOSFET for efficient high-side power switching
• Supports load discharge functionality for controlled power-down sequences
• Operates with non-inverting control logic for straightforward interface integration

Applications

• USB port power management and protection
• Battery-powered portable electronic devices
• General-purpose power distribution in embedded systems

Procurement Notes

Verify the specific suffix 'YFT' to confirm the UDFN-4 package type and tape-and-reel delivery format. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the manufacturer part number with official Microchip documentation to validate authenticity and avoid counterfeit risks during procurement.

Selection Notes

Select this component when a compact high-side switch with low on-resistance is required for voltages between 1.7V and 5.5V. Consider the 2A output capability and UDFN-4 footprint for space-constrained designs. Evaluate the thermal performance and operating temperature range against your system's environmental conditions before finalizing the design.

Part Context

This part belongs to the MIC9408x series of load switches, which are optimized for USB and general power distribution tasks. The series offers various configurations tailored for different current and voltage requirements. The MIC94081 variant specifically provides a balance of low resistance and high current handling in a minimal footprint.

Replacement Considerations

Consult Microchip's official cross-reference tools for verified substitutes. Potential alternatives may include other members of the MIC9408x family or comparable high-side switches from other manufacturers, provided they match the voltage, current, and package specifications.