MP2560DQ-LF-Z

Voltage Regulators - DC DC Switching Regulators Overview

The MP2560DQ-LF-Z is a high-frequency step-down switching regulator from Monolithic Power Systems, featuring an integrated high-side power MOSFET. It delivers up to 2.5A output current with current-mode control for fast loop response and easy compensation. The device operates within a wide input voltage range of 4.5V to 42V, accommodating various automotive applications. It offers a quiescent current of 100µA during operation and 12µA in shutdown mode. The switching frequency is programmable up to 4MHz, enabling efficient performance across wide load ranges through frequency foldback at light loads. The output voltage is adjustable from 0.8V to 39V, achieving efficiencies up to 93%. It is housed in a compact 3mm x 3mm QFN-10 package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-side power MOSFET with current-mode control for rapid transient response.
• Features frequency foldback to prevent inductor current runaway during startup.
• Includes thermal shutdown protection for reliable fault-tolerant operation.
• Supports ceramic output capacitors for stable operation without additional components.

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive electronics systems
• Battery-powered portable devices
• General-purpose DC-DC conversion
• Applications requiring EMI noise reduction

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'Z' indicates lead-free compliance and RoHS standards as per manufacturer documentation. Confirm that the QFN-10 package matches your PCB footprint requirements. Ensure compatibility with the required input voltage range and output current specifications for your design. Cross-reference the datasheet for thermal performance data under expected operating conditions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a wide input voltage range up to 42V is required alongside high efficiency. Consider it for designs needing programmable switching frequencies to optimize EMI performance. The internal soft-start and current limit features simplify circuit design by reducing external component count. Evaluate the thermal characteristics if operating near maximum current limits.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the MP2560 series of synchronous buck converters. It is designed for applications demanding high power density and efficiency. The series supports various packaging options to suit different thermal and space constraints. It represents a solution for converting higher voltages to lower levels efficiently.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

MP2560DQ-LF-P is available as an alternative package variant within the same series. Verify pinout and thermal pad configurations before substitution. Check if the replacement meets all electrical parameter requirements of the original design.

Voltage Regulators - DC DC Switching Regulators FAQ

How does the MP2560 handle light load conditions?

It scales down the switching frequency at light loads to reduce switching and gate driving losses, maintaining high efficiency.

What protection features are included?

The device includes thermal shutdown protection and internally set current limit without requiring external sensing resistors.