MIC94044YFL-TR

Overview

The MIC94044YFL-TR is a high-side load switch manufactured by Microchip Technology. It features a single output channel with a maximum continuous output current of 3A and a typical on-resistance of 28mΩ, with a maximum specified at 55mΩ. The device operates within a supply voltage range of 1.7V to 5.5V. Key timing parameters include a maximum turn-on time of 1.5ms and a maximum idle time of 200ns. It is designed for operation across an extended temperature range from -40°C to +125°C and is housed in a compact 4-terminal MLF/UDFN surface-mount package.

Feature Summary

• High-side power distribution control with low on-resistance for efficient current handling
• Integrated protection against overcurrent and thermal conditions
• Fast switching characteristics with defined turn-on and idle times
• Wide operating voltage range suitable for various logic levels

Applications

• Power distribution networks in embedded systems
• Load switching for peripheral devices in industrial equipment
• Power management in automotive electronics
• Battery-powered portable devices requiring efficient power gating

Procurement Notes

Verify the specific suffix YFL to confirm the 4-terminal MLF/UDFN package type and tape-and-reel packing configuration. Ensure compatibility with the required 3A current rating and 55mΩ maximum on-resistance specifications. Confirm that the operating temperature range of -40°C to +125°C meets the environmental requirements of the target application. Cross-reference the manufacturer part number MIC94044YFL-TR with official Microchip documentation to validate pinout and electrical characteristics before integration.

Selection Notes

Select this component when a single-channel high-side switch with 3A capacity is required. The low on-resistance minimizes power loss during conduction. The wide input voltage range allows flexibility in system design. Consider the thermal performance and package size constraints when choosing between this and other load switches. Verify that the interface requirements match the control signal available in the system.

Part Context

The MIC94044 belongs to Microchip's family of high-side load switches, designed for robust power distribution. It shares functional similarities with the MIC94045 but may differ in specific packaging or minor electrical parameters. These devices are engineered for applications requiring reliable load switching with integrated protection features. The YFL suffix denotes the specific surface-mount package variant used in modern compact designs.

Replacement Considerations

Check for direct substitutes such as the MIC94045YFL-TR if pinout and electrical specs align. Verify that any replacement maintains the 3A current rating and compatible voltage range. Ensure the alternative device offers similar protection features and package dimensions for mechanical compatibility.