MP5002DQ-LF-Z

Overview

The MP5002DQ-LF-Z is a programmable current limit switch from Monolithic Power Systems designed for power distribution applications. It operates within a supply voltage range of 2.5 V to 4 V and supports an output current up to 3 A with a typical current limit of 1.55 A. The device features a maximum on-resistance of 82 mOhms and handles a power dissipation of 2.5 W. It functions reliably across an operating temperature range of -40°C to +85°C and is housed in a QFN-10 surface-mount package.

Feature Summary

• Programmable current limiting capability allows customization of protection thresholds
• Low on-resistance design minimizes conduction losses during operation
• Integrated thermal overload protection safeguards against overheating conditions

Applications

• Power distribution systems requiring precise current management
• Portable electronic devices powered by 3.3V rails
• Industrial equipment utilizing low-voltage power switching

Procurement Notes

Verify component authenticity through authorized channels due to the NRND status. Confirm that the QFN-10 package matches PCB footprint requirements. Ensure input voltage stays within the 2.5 V to 4 V operational limits. Check for RoHS compliance documentation if required by project specifications. Review datasheet for proper thermal management strategies given the 2.5 W dissipation rating.

Selection Notes

Select this component when designing circuits with 3.3V supplies needing adjustable overcurrent protection. Consider the 82 mOhm resistance for efficiency calculations. Evaluate the QFN-10 package for space-constrained layouts. Compare against higher voltage variants if system rails exceed 4 V. Assess thermal performance under maximum load conditions to ensure reliability within the specified temperature range.

Part Context

This part belongs to the MP5002 series of programmable current limit switches. It serves as a specialized power distribution IC within Monolithic Power Systems' portfolio. The device complements other MPS solutions by providing integrated protection features in a compact form factor suitable for modern electronics requiring efficient power management.

Replacement Considerations

The MP5001DQ-LF-Z offers similar functionality but operates at higher voltages (4 V to 10 V) with different current ratings. Verify voltage compatibility before substitution. Ensure pinout alignment between the QFN-10 packages. Review datasheets for differences in current limit programming ranges and thermal characteristics.