MP5003EQ-LF-Z

Overview

The MP5003EQ-LF-Z is a power switch IC designed for distribution and protection in electronic circuits. It operates within an input voltage range of 3 V to 5.5 V and supports output currents from 1 A to 3 A via programmable current limiting. The device features an integrated 56 mOhm power FET, overvoltage clamping at 5.7 V typical (22 V absolute max), and adjustable output voltage rise slope controlled by an external capacitor on the dv/dt pin. It includes undervoltage lockout, thermal shutdown with auto-retry, and an enable/fault pin.

Feature Summary

• Integrated low-resistance power FET for efficient power distribution
• Programmable current limiting and output voltage slew rate control
• Comprehensive protection including overvoltage clamping and thermal shutdown

Applications

• Protection of output circuits from input transients
• Protection of input lines from load shorts and transients
• Surge current limiting during system startup

Procurement Notes

Verify the specific package variant and temperature rating against the official datasheet before procurement. Confirm that the design utilizes the recommended alternative part number if applicable, as this component may be restricted for new designs. Ensure all electrical parameters match the target application requirements.

Selection Notes

Select this component when protection against input/output transients and controlled startup behavior are required. The programmable current limit allows customization between 1 A and 3 A. Consider the integrated FET resistance and thermal performance for power dissipation calculations. Verify compatibility with the system's input voltage range and fault handling logic.

Part Context

This part belongs to the MPS power switch family, specifically engineered for circuit protection and power distribution. It integrates control logic with a high-current DMOS power device. The series focuses on providing robust protection mechanisms such as overvoltage clamping and thermal management within a compact surface-mount package.

Replacement Considerations

MP5013A is listed as an alternative for new designs.