MP3305DD-LF-Z

LED Driver IC Overview

The MP3305DD-LF-Z is a Monolithic Power Systems LED lighting driver IC designed for white LED applications. It features a boost topology with a single output capable of delivering up to 1.3 A. The device operates within a supply voltage range of 2.5 V to 6 V and supports an output voltage up to 36 V. It integrates an internal switch and functions at a working frequency of 2.2 MHz. The component is housed in an 8-lead QFN package (QFN-8) and is rated for operation between -40 °C and +85 °C.

LED Driver IC Feature Summary

• Integrates a high-frequency true PWM dimming capability for precise brightness control.
• Includes an adjustable overvoltage protection (OVP) circuit to safeguard the LED load.
• Features a step-up (boost) DC-DC converter architecture with an integrated power switch.

LED Driver IC Applications

• White LED backlighting systems
• Portable electronic device illumination
• General LED lighting driver circuits

LED Driver IC Procurement Notes

Verify that the specific suffix 'LF-Z' corresponds to lead-free RoHS compliance and tape-and-reel packaging as indicated by distributor data. Confirm the manufacturer's part number matches the official MPS documentation to ensure correct pinout and electrical characteristics. Cross-reference the datasheet revision date to validate current design specifications against historical versions.

LED Driver IC Selection Notes

Select this component when a boost topology is required for driving white LEDs from low-voltage sources. Ensure the application demands a maximum output voltage of 36 V and peak currents around 1.3 A. Consider the 2.2 MHz switching frequency for inductor size optimization and the QFN-8 package for compact PCB layout requirements.

LED Driver IC Part Context

This device belongs to the MP3305 series of LED drivers from Monolithic Power Systems. It is functionally similar to the MP3302 but utilizes a higher operating frequency of 2.2 MHz compared to the MP3302's 1.3 MHz, allowing for potentially smaller passive components while maintaining comparable current handling capabilities.

LED Driver IC Replacement Considerations

MP3305DD-LF-P is documented as a parameter-equivalent substitute within the same product family.

LED Driver IC FAQ

What type of dimming does the MP3305 support?

It supports high-frequency true PWM dimming.

Is there overvoltage protection included?

Yes, it includes an adjustable overvoltage protection (OVP) feature.