MP62040DQFU-1-LF-P

Overview

The MP62040DQFU-1-LF-P is a single-channel power distribution switch manufactured by Monolithic Power Systems. It operates within an input voltage range of 1.7V to 5.5V and supports a continuous output current of 2A. The device features integrated current limiting for circuit protection. A key functional distinction is the inclusion of an active output discharge mechanism, which rapidly bleeds charge from the load upon shutdown. It is housed in a compact DQFN package designed for space-constrained applications.

Feature Summary

• Integrates active output discharge to accelerate load voltage decay during shutdown
• Provides precise current limiting to protect downstream circuits from overcurrent conditions
• Operates with low input voltage starting at 1.7V for compatibility with various power rails

Applications

• Portable electronic devices requiring efficient power management
• Peripheral interface circuits needing fast discharge capabilities
• Battery-powered systems utilizing single-channel power switching

Procurement Notes

Verify the specific suffix 'DQFU-1' to confirm the presence of the output discharge feature, as standard variants lack this function. Ensure the component is RoHS compliant and lead-free (LF) if required by assembly standards. Cross-reference the manufacturer's latest datasheet to confirm pinout compatibility and thermal performance specifications before finalizing procurement.

Selection Notes

Select this variant when rapid load discharge is necessary to meet safety or timing requirements. Compare against the non-discharge version if the extra functionality is unnecessary. Consider the operating temperature range and package thermal resistance for high-density PCB layouts. Verify that the 2A current limit aligns with the maximum load requirements without triggering nuisance tripping.

Part Context

This component belongs to the MP6204x series of ultra-small power distribution switches. The series includes variants with and without output discharge features. The MP62040DQFU-1-LF-P specifically denotes the single-channel version with discharge capability in the DQFN package. It serves as a compact solution for managing power delivery in modern portable electronics.

Replacement Considerations

The MP62040DQFU is a compatible alternative but lacks the output discharge feature. The MP62040-1 is the generic part number designation for this family member. Verify pin-to-pin compatibility and electrical parameter alignment before substitution.