MP3309LGQG-P

LED Driver IC Overview

The MP3309LGQG-P is a synchronous boost DC-DC regulator designed for white LED driving. It operates with an input voltage range of 2.7V to 5.5V and supports a maximum output voltage of 24V. The device delivers up to 1.5A of output current at a switching frequency of 640kHz. It features integrated analog and PWM dimming capabilities for brightness control. The component is housed in a compact 10-QFN (1.4x1.8mm) package and functions within a junction temperature range of -40°C to 125°C.

LED Driver IC Feature Summary

• Integrated synchronous boost converter topology for high efficiency
• Supports both analog and pulse-width modulation dimming methods
• Includes soft-start functionality to limit inrush current

LED Driver IC Applications

• White LED backlighting for tablet computers
• LED illumination systems for smartphones
• Portable electronic display backlight drivers

LED Driver IC Procurement Notes

Verify the specific suffix 'P' indicates tape-and-reel packaging configuration as documented by the manufacturer. Confirm that the 24V output rating aligns with your specific LED string requirements, as other variants may support higher voltages. Ensure the 10-QFN footprint matches your PCB layout constraints. Cross-reference the RoHS compliance status with the latest datasheet revision before finalizing procurement specifications.

LED Driver IC Selection Notes

Select this component when designing for mobile devices requiring a single-channel boost driver with integrated dimming controls. The 640kHz frequency allows for smaller external passive components compared to lower-frequency alternatives. Consider the 1.5A current limit when sizing the power stage for high-brightness LED arrays. The wide input voltage range accommodates single-cell lithium-ion battery discharge profiles without additional pre-regulation.

LED Driver IC Part Context

This part belongs to the MP3309 series from Monolithic Power Systems, which focuses on efficient LED lighting solutions for portable electronics. The series includes variants with different output voltage ratings and packaging options. The MP3309LGQG-P specifically targets applications requiring a 24V output ceiling, distinguishing it from higher-voltage counterparts like the standard MP3309GQG.

LED Driver IC Replacement Considerations

The MP3309GQG serves as a functional substitute within the same family, though it supports a higher 35V output voltage. Verify pin compatibility and thermal performance when swapping between these variants. Other MPS LED drivers may require external components or different control interfaces.