MPQ2451DG-AEC1-LF-P

Voltage Regulators - DC DC Switching Regulators Overview

The MPQ2451DG-AEC1-LF-P is a non-synchronous Buck switching regulator from Monolithic Power Systems, designed for automotive applications with AEC-Q100 qualification. It features a fixed 2 MHz switching frequency and supports an input voltage range of 3.3 V to 36 V. The device delivers a maximum output current of 600 mA in a compact QFN-6 package. Key electrical parameters include a quiescent current of 130 uA during operation and a shutdown supply current of 3 uA. It operates within a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage power MOSFET enables efficient step-down conversion without external components.
• Fixed 2 MHz switching frequency allows for the use of small passive components.
• Frequency foldback prevents inductor saturation during startup conditions.
• Adjustable soft-start limits inrush current during power-up sequences.

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems
• Telematics control units
• Body electronics modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix configuration against official datasheets to ensure correct pinout and thermal pad requirements. Confirm that the QFN-6 package variant aligns with your PCB footprint design. Check for any recent lifecycle status updates such as NRND or obsolescence notices before finalizing procurement plans.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 2 MHz frequency is required for EMI management and size constraints. Ensure the load current does not exceed 600 mA. Verify that the input voltage remains within the 3.3 V to 36 V range. Consider the thermal performance of the QFN-6 package under maximum load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the MPQ2451 series of automotive-grade buck converters. It shares core topology and electrical characteristics with other variants in the family, differing primarily in package type and specific ordering suffixes. The series is designed for high-efficiency power management in demanding automotive environments.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include MPQ2451DG-AEC1-LF-Z and MPQ2451DJ-AEC1-LF-Z. Verify package compatibility and pin assignments before substitution. Cross-reference with MPQ2451GT-5-AEC1-Z for SOT-23-6 alternatives if form factor changes are acceptable.