MIC94040YFL-TR

Overview

The MIC94040YFL-TR is a high-side load switch manufactured by Microchip Technology, designed for power distribution applications. It features a single output capable of delivering up to 3A of continuous current with a typical on-resistance of 28mΩ and a maximum of 55mΩ. The device operates within a supply voltage range of 1.7V to 5.5V and supports industrial temperature grades from -40°C to +125°C. Key timing specifications include a maximum turn-on time of 1.5µs and a maximum turn-off time of 200ns. It is housed in a compact UDFN-4 or MLF-4 surface-mount package.

Feature Summary

• High-side load switch configuration with non-inverting input control
• Capable of handling 3A output current with low on-resistance
• Operates across a wide supply voltage range of 1.7V to 5.5V
• Industrial temperature rating supporting -40°C to +125°C operation

Applications

• Power distribution in industrial systems
• Load switching in embedded controllers
• Peripheral power management in consumer electronics

Procurement Notes

Verify the specific package variant (UDFN-4 vs. MLF-4) and temperature grade against the official datasheet, as product attributes may vary between sources. Ensure the ordering suffix matches the required reel quantity and tape-and-reel packaging specifications provided by Microchip Technology. Cross-reference the manufacturer part number with authorized distributors to confirm authenticity and compliance with RoHS standards before finalizing procurement.

Selection Notes

Select this component when a high-side switch with 3A capacity and low on-resistance is required for voltages between 1.7V and 5.5V. Consider the fast switching speeds and industrial temperature range for robust performance in demanding environments. Verify that the single-output configuration meets the circuit design requirements and that the small form factor package fits the available PCB space constraints.

Part Context

The MIC94040YFL-TR belongs to Microchip's family of power switch ICs designed for efficient power distribution. It serves as a high-side load switch, providing controlled power delivery to loads while offering protection and monitoring capabilities. This series is commonly used in applications requiring reliable switching of peripheral devices and memory components within a defined voltage window.

Replacement Considerations

The MIC94041YFL-TR and MIC94045YFL-TR are related parts within the same family, sharing similar electrical characteristics such as 3A current capability and 28mΩ on-resistance. When substituting, verify compatibility regarding package type (UDFN-4 vs. MLF-4) and operating temperature range (-40°C to +85°C vs. -40°C to +125°C) to ensure the replacement meets the system's environmental and physical constraints.