MP5000SDQ-LF-P

Overview

The MP5000SDQ-LF-P is a programmable current limit switch from Monolithic Power Systems, designed for 12V power distribution. It features an integrated power FET with a maximum continuous current limit of 5A and an input voltage range of 10V to 13.8V. The device includes adjustable soft-start via a dv/dt pin and programmable current limiting controlled by an external resistor. Key protection mechanisms include input under-voltage lockout (UVLO), over-temperature shutdown, and output over-voltage clamping at approximately 15V. It operates within a temperature range of -40°C to +125°C and is housed in a QFN-10 surface-mount package.

Feature Summary

• Integrates a low on-resistance DMOS power FET driven by an internal charge pump for efficient power switching.
• Provides programmable current limiting functionality allowing adjustment between 1A and 5A using an external resistor.
• Features adjustable output voltage rise slope to control inrush current during startup via an external capacitor.
• Includes comprehensive protection against over-temperature conditions, input under-voltage, and output over-voltage transients.

Applications

• Power distribution units requiring protected 12V rail switching
• Industrial equipment input stage protection against short circuits
• Systems needing controlled inrush current management during power-up

Procurement Notes

Verify the component status as Not Recommended for New Designs (NRND) before finalizing procurement plans. Confirm that the QFN-10 package dimensions align with existing PCB footprints. Ensure the specific suffix LF-P matches the required lead-free and tape-and-reel specifications for automated assembly processes.

Selection Notes

Select this component when a 12V system requires robust protection against output shorts and input transients. It is suitable for applications demanding adjustable current limits and controlled turn-on slopes. Consider alternative models like the MP5014A if new design support is strictly required due to the NRND status.

Part Context

This part belongs to the MP5000 series of power switches manufactured by Monolithic Power Systems. These devices are engineered to protect downstream circuitry from source-side transients while safeguarding the input supply from output-side faults. The series emphasizes integration of high-current handling capabilities with precise control features in compact packages.

Replacement Considerations

The MP5014A is identified as an alternative for new designs. Verify compatibility regarding package type, pin configuration, and electrical parameters before substitution.