MP5003EQ-LF-P

Overview

The MP5003EQ-LF-P is a programmable current limit switch IC designed for power distribution applications. It operates within a 3 V to 5.5 V input voltage range and supports an output current of 1 A to 3 A. The device integrates a 56 mΩ power FET and features adjustable output voltage rise slope and current limiting thresholds. Key protection mechanisms include over-temperature shutdown with auto-retry, input under-voltage lockout, and output over-voltage clamping at 5.7 V typical. It is housed in a TSOT23-8 package.

Feature Summary

• Integrates a low on-resistance power FET driven by an internal charge pump.
• Provides adjustable output voltage rise slope via external capacitor control.
• Features programmable current limiting through external resistor setting.
• Includes automatic retry functionality following over-temperature events.

Applications

• Protection of output circuits from input transients
• Protection of input sources from load shorts and transients
• Inrush current limitation during system startup

Procurement Notes

Verify the component status as Not Recommended for New Designs (NRND). Confirm availability for existing production runs only. Check for official alternative recommendations such as the MP5013A for new design implementations. Ensure compatibility with the specified TSOT23-8 package and electrical parameters before procurement.

Selection Notes

Select this component for legacy designs requiring integrated power switching with adjustable protection thresholds. Evaluate the need for auto-retry features and specific over-voltage clamping levels. Consider the MP5013A if new design support is required. Verify thermal performance requirements given the integrated FET characteristics and operating temperature range.

Part Context

This part belongs to the MPS MP5003 series of programmable current limit switches. It is categorized under power switch ICs for power distribution. The series focuses on protecting circuits from transient events and short circuits while managing inrush currents during power-up sequences.

Replacement Considerations

The MP5013A is listed as an alternative part for new designs. Verify pinout compatibility and electrical parameter alignment when substituting the MP5003EQ-LF-P with the MP5013A.