MPQ2483ADQ-LF-P

Overview

The MPQ2483ADQ-LF-P is a single-channel LED driver IC from Monolithic Power Systems, designed for white LED applications. It operates within an input voltage range of 4.5 V to 55 V and supports a maximum output current of 2.5 A. The device utilizes Buck or Buck-Boost topology with a fixed switching frequency of 250 kHz. It features analog and PWM dimming capabilities and is housed in a compact 10-QFN (3x3) package. The component is rated for industrial temperatures ranging from -40°C to +125°C.

Feature Summary

• Supports both analog and PWM dimming modes for precise brightness control
• Integrates internal power switch for simplified circuit design
• Includes short circuit and thermal protection mechanisms

Applications

• White LED backlighting systems
• Industrial LED lighting fixtures
• Automotive-grade illumination modules

Procurement Notes

Verify the specific suffix LF-P against the manufacturer's official datasheet to confirm lead-free status and packaging type. Ensure the selected variant matches the required operating temperature range and certification standards for the target application environment before finalizing procurement.

Selection Notes

Select this component when a single-channel driver with high input voltage tolerance up to 55 V is required. It is suitable for designs needing integrated protection features and flexible dimming options. Consider the 10-QFN package size for space-constrained PCB layouts requiring surface mount installation.

Part Context

This part belongs to the MPQ2483 series of LED drivers from Monolithic Power Systems. The series includes variants such as MPQ2483DQ-AEC1-LF-P and MPQ2483ADQ-LF-Z, which share similar electrical characteristics but may differ in automotive qualification or industrial grade specifications.

Replacement Considerations

MPQ2483ADQ-LF-Z is a documented alternative within the same series offering similar functionality.