MP62550DJ-LF-Z

Overview

The MP62550DJ-LF-Z is a single-channel power distribution switch from Monolithic Power Systems. It operates within a supply voltage range of 2.5 V to 5.5 V and delivers an output current of 1.5 A with a current limit of 1.7 A. The device features a maximum on-resistance of 135 mOhms and supports active-low control. It includes protection against overcurrent conditions and thermal shutdown, with a maximum power dissipation of 570 mW. The component functions reliably across an operating temperature range of -40°C to +85°C and is housed in a TSOT-23-6 surface-mount package.

Feature Summary

• Integrates active-low control logic for efficient system management
• Provides adjustable current limiting up to 1.7 A to protect downstream loads
• Includes built-in thermal shutdown and overcurrent protection mechanisms

Applications

• Power distribution in portable consumer electronics
• Load switching in battery-powered devices
• Peripheral power management in mobile communication equipment

Procurement Notes

Verify the specific suffix LF-Z indicates lead-free compliance and RoHS standards before procurement. Confirm that the TSOT-23-6 package dimensions align with your PCB footprint requirements. Ensure the active-low control polarity matches your system's logic levels. Check official manufacturer documentation for any recent design revisions or recommended operating conditions that may affect integration.

Selection Notes

Select this component when a compact, low-side power switch with integrated protection is required. The 1.5 A continuous current rating suits moderate load applications. Consider the 135 mOhm on-resistance for efficiency calculations. Verify that the 2.5 V minimum supply voltage meets your system's lowest operating condition. The TSOT-23-6 package offers space savings compared to larger alternatives.

Part Context

This part belongs to the MP62550 series of power distribution switches from Monolithic Power Systems. These components are designed for efficient power routing in small form-factor devices. The series emphasizes integration of protection features within minimal footprints. The MP62550DJ-LF-Z specifically targets applications requiring reliable load switching with active-low control capabilities.

Replacement Considerations

Consult official MPS documentation for verified cross-reference part numbers. Ensure any substitute maintains identical pinout configuration and electrical specifications. Verify compatibility with existing control logic and thermal management designs.