MP2488DQ-LF-Z

LED Driver IC Overview

The MP2488DQ-LF-Z is a high-power synchronous step-down (buck) LED driver IC manufactured by Monolithic Power Systems. It integrates a 55V N-channel power switch and delivers up to 2A of output current. The device operates with an input voltage range of 4.5V to 55V and features a fixed switching frequency of 200kHz. It supports PWM dimming for brightness control and includes comprehensive protection features such as over-current, over-voltage, and thermal shutdown within a compact QFN-10 package.

LED Driver IC Feature Summary

• Integrates a high-voltage 55V synchronous power switch for efficient buck conversion
• Supports analog and PWM dimming methods for precise LED brightness control
• Includes built-in protection mechanisms against over-current, over-voltage, and excessive temperature

LED Driver IC Applications

• High-power LED lighting systems
• General-purpose DC-DC step-down regulation
• Industrial LED drivers

LED Driver IC Procurement Notes

Verify the specific suffix 'LF-Z' indicates lead-free and RoHS compliance status as per the manufacturer's declaration. Confirm the QFN-10 package dimensions and thermal pad requirements against your PCB layout guidelines. Ensure the input voltage supply does not exceed the 55V absolute maximum rating during transient conditions. Cross-reference the datasheet revision date to ensure compatibility with latest design specifications.

LED Driver IC Selection Notes

Select this component when a wide input voltage range up to 55V is required for driving high-power LEDs or general loads. The integrated 2A switch capability suits applications requiring moderate current without external MOSFETs. Consider the 200kHz switching frequency for balancing efficiency and passive component size. The QFN-10 package offers a compact footprint suitable for space-constrained designs requiring effective thermal dissipation through the exposed pad.

LED Driver IC Part Context

This part belongs to the MP2488 series of synchronous buck converters from Monolithic Power Systems. It is designed specifically for high-efficiency power management in LED and general regulator applications. The series emphasizes integration by combining the controller and power switch in a single package to reduce solution size and complexity compared to discrete solutions.

LED Driver IC Replacement Considerations

Direct pin-to-pin replacements are limited due to specific voltage and current ratings. Verify if alternative MPS parts like the MP2482 or MP2480 meet the 55V input requirement, noting their lower voltage ratings may necessitate circuit redesign. Check competitor equivalents only if they match the 55V max input and 2A output specs.