MIC94041YFL-TR

Overview

The MIC94041YFL-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. The device operates within an input voltage range of 1.7V to 5.5V and utilizes a high-true logic enable signal. Key electrical characteristics include a maximum on-state resistance of 28mΩ (with a maximum limit of 55mΩ) and a typical load discharge resistance of 250Ω. The component supports fast switching with a maximum turn-on time of 1.5μs and a turn-off time of 200ns. It is available in a UDFN-4 surface-mount package and functions reliably across an operating temperature range of -40°C to +125°C.

Feature Summary

• High-side load switch architecture with single-channel output
• Low on-state resistance for efficient power delivery
• Fast switching times for responsive load control
• Integrated load discharge path for safe shutdown

Applications

• Power distribution in portable electronic devices
• Load switching in industrial control systems
• Power management in automotive electronics
• Battery-powered equipment load protection

Procurement Notes

Verify the specific package variant, as sources indicate both UDFN-4 and MLF-4 configurations exist for this part number series. Confirm the exact on-resistance value required for your application, as datasheets may list typical values of 28mΩ alongside maximum limits of 55mΩ or 82mΩ depending on the specific revision. Ensure the enable logic polarity matches your system design, as the device requires a high-active signal. Cross-reference the thermal performance requirements against the specified operating temperature range of -40°C to +125°C.

Selection Notes

Select this component when a compact, high-current high-side switch is needed for voltages up to 5.5V. The low on-resistance minimizes power loss and heat generation during operation. Consider the UDFN-4 footprint for space-constrained designs. Verify that the 3A current rating meets the peak and continuous load requirements. The wide operating temperature range makes it suitable for harsh environments. Ensure the control interface provides a compatible high-true logic level for activation.

Part Context

The MIC94041YFL-TR belongs to Microchip's family of high-side load switches, which are integrated circuits used to manage power delivery to loads. These devices typically combine a power MOSFET with control logic, offering protection features such as overcurrent and thermal shutdown. The 'YFL' suffix denotes the specific package type and tape-and-reel configuration. This part is distinct from similar models like the MIC94045, which may differ in package style or temperature rating.

Replacement Considerations

Publicly confirmed substitute part numbers are not explicitly listed in the provided source data. Engineers should consult official Microchip documentation for direct pin-to-pin replacements or functional equivalents within the same product family. Verify compatibility regarding package dimensions, electrical parameters, and thermal characteristics before substitution.