MP62181DS-LF-Z

Overview

The MP62181DS-LF-Z is a single-channel power switch IC from Monolithic Power Systems, designed for high-side load distribution in 3.3V and 5V systems. It integrates a 2A current limit switch with an active-high control interface. Key electrical specifications include a maximum on-resistance of 120 mΩ, a fixed current limit of 2.8A, and a supply voltage range of 2.7V to 5.5V. The device features a maximum turn-on time of 10ms and a maximum dwell time of 3ms. It operates within a temperature range of -40°C to +85°C and is housed in an 8-SOIC package.

Feature Summary

• Integrates a single high-side power switch with active-high logic control for simplified interfacing.
• Provides robust overcurrent protection with a fixed 2.8A current limit threshold.
• Features low on-resistance to minimize conduction losses and heat generation during operation.

Applications

• High-side load distribution in 3.3V and 5V power rails
• Current limiting protection for peripheral devices
• Power switching in industrial control modules

Procurement Notes

Verify the component status as NRND (Not Recommended for New Designs) before finalizing procurement plans. Ensure compatibility with existing 8-SOIC footprints and confirm that the 2.8A current limit meets specific circuit requirements. Cross-reference datasheet revisions to ensure parameter consistency with legacy designs.

Selection Notes

Select this component for applications requiring a single-channel high-side switch with integrated current limiting. The 2.8A limit suits moderate load protection needs. Consider the 120mΩ Rds(on) for thermal management in compact enclosures. Verify input voltage levels fall within the 2.7V to 5.5V operating range.

Part Context

This part belongs to the MP62181 family of power switches from Monolithic Power Systems. It serves as a discrete solution for load distribution, offering integration advantages over discrete MOSFET setups. The DS suffix indicates an 8-SOIC package variant, distinct from other pinout configurations in the series.

Replacement Considerations

MP62181DD-LF-Z is a documented alternative within the same product family, sharing similar functional characteristics but potentially differing in package or minor electrical parameters. Verify pinout compatibility and thermal performance when substituting.

FAQ

What is the control logic level for the MP62181DS-LF-Z?

The device utilizes an active-high control interface, meaning the switch turns on when the control pin is driven high.

Does the MP62181DS-LF-Z support reverse current flow?

Standard documentation for this specific part number does not explicitly list reverse current blocking as a primary feature; it is primarily configured as a high-side switch with current limiting.