MPQ2483DQ-LF-P

Overview

The MPQ2483DQ-LF-P is a programmable frequency Buck-Boost LED driver IC from Monolithic Power Systems. It supports an input voltage range of 4.5 V to 55 V and delivers up to 2.5 A output current. The device operates at a fixed switching frequency of 250 kHz and features analog and PWM dimming capabilities. Packaged in a QFN-10 form factor, it is designed for automotive-grade applications with an operating temperature range of -40°C to +125°C.

Feature Summary

• Integrated Buck-Boost topology supporting wide input voltage ranges
• Programmable switching frequency for optimized component selection
• Supports both analog and pulse-width modulation dimming methods

Applications

• Automotive exterior lighting systems
• High-power LED illumination modules
• Industrial LED drivers requiring wide input tolerance

Procurement Notes

Verify the specific suffix LF-P against official MPS documentation to confirm lead-free status and tape-and-reel packaging configuration. Ensure the design accounts for the 250 kHz fixed frequency and thermal requirements associated with the QFN-10 package under maximum load conditions.

Selection Notes

Select this component when a Buck-Boost architecture is required to handle input voltages that may rise above or fall below the LED string forward voltage. The 2.5 A current capability and automotive qualification make it suitable for high-reliability lighting applications where wide input voltage tolerance is critical.

Part Context

This part belongs to the MPQ2483 series, which includes variants like the MPQ2483DQ-LF-Z and MPQ2483DQ-AEC1-LF-P. These devices share similar electrical characteristics but may differ in qualification standards or lifecycle status. The MPQ2483 series targets automotive and industrial LED lighting markets.

Replacement Considerations

The MPQ2483DQ-LF-Z is a related variant within the same series. Verify if the Z suffix indicates a different packaging or lifecycle status compared to the P suffix before substitution.