MIC94045YFL-TR

Overview

The MIC94045YFL-TR is a high-side load switch manufactured by Microchip Technology, designed for power distribution applications. It operates within an input voltage range of 1.7V to 5.5V and supports a maximum output current of 3A. The device features a typical on-resistance (Rds On) of 28mΩ and a maximum on-resistance of 55mΩ. Key timing parameters include a maximum turn-on time of 1.5ms and a maximum turn-off time of 200ns. It is housed in a compact 4-pin MLF package with dimensions of 1.2x1.2mm. The component functions over an extended temperature range from -40°C to +125°C.

Feature Summary

• Integrates slew rate control to manage inrush current during turn-on events
• Includes integrated load discharge capability for rapid output voltage decay
• Provides non-inverting logic input for straightforward interface compatibility

Applications

• High-side power switching in portable electronic devices
• Power distribution units requiring controlled inrush management
• Battery-powered systems needing efficient load isolation

Procurement Notes

Verify the specific suffix YFL to confirm the 4-pin MLF package configuration and tape-and-reel quantity. Ensure the ordering part number matches the required operating temperature range and electrical specifications. Cross-reference the manufacturer datasheet for exact pinout definitions and thermal characteristics before finalizing procurement orders.

Selection Notes

Select this component when a single-channel high-side switch with integrated inrush control is required. The low on-resistance minimizes power loss in high-current paths up to 3A. Consider the 1.7V minimum operating voltage for compatibility with low-voltage logic interfaces. The small footprint suits space-constrained designs where thermal performance must be balanced with package size.

Part Context

This device belongs to the MIC9404x series of intelligent power switches from Microchip Technology. These components are engineered for robust power management in consumer and industrial electronics. The series offers various channel counts and package options to suit different power distribution needs while maintaining consistent electrical performance standards across the family.

Replacement Considerations

Check for direct substitutes within the MIC9404x family that share identical pinouts and electrical characteristics. Verify that alternative high-side switches support the same 3A current rating and 1.7V to 5.5V input range. Ensure compatible packages such as UDFN or MLF are available if board space is constrained.

FAQ

What is the typical on-resistance of the MIC94045YFL-TR?

The typical on-resistance (Rds On) is 28mΩ.

Does the MIC94045YFL-TR support load discharge?

Yes, the device includes integrated load discharge functionality to rapidly remove charge from the output.

What is the maximum operating temperature for this component?

The maximum operating temperature is +125°C.