MP3205DJ-LF-P

LED Driver IC Overview

The MP3205DJ-LF-P is a step-up converter IC designed for driving up to five series white LEDs from a single-cell lithium-ion battery. It operates within an input voltage range of 2.5 V to 6 V and provides an adjustable output voltage between 2.5 V and 21 V. The device integrates a 1.3 MHz switching frequency and supports PWM dimming control. It utilizes a TSOT-23-5 package and functions reliably across a temperature range of -40°C to +85°C.

LED Driver IC Feature Summary

• Integrates a high-efficiency boost converter topology optimized for single-cell lithium-ion battery applications.
• Supports precise LED current regulation with configurable output settings via external resistors without requiring microcontroller intervention.
• Enables flicker-free brightness adjustment through dedicated PWM dimming input functionality.

LED Driver IC Applications

• Portable electronic devices powered by single-cell lithium-ion batteries
• White LED backlighting systems in mobile handsets
• Compact portable lighting fixtures

LED Driver IC Procurement Notes

Verify the specific suffix LF-P against official Monolithic Power Systems documentation to confirm lead-free status and tape-and-reel packaging configuration. Ensure compatibility with the required TSOT-23-5 footprint and validate that the 2.5V to 6V input range aligns with the target power source specifications before finalizing procurement.

LED Driver IC Selection Notes

Select this component when designing circuits requiring a compact solution for driving multiple series-connected white LEDs from a low-voltage single-cell source. The integrated 1.3 MHz frequency allows for smaller passive components, while the fixed topology simplifies design compared to programmable alternatives. Confirm that the maximum output voltage capability meets the forward voltage requirements of the intended LED string.

LED Driver IC Part Context

This part belongs to the MP3205 series of LED driver ICs manufactured by Monolithic Power Systems. The series focuses on providing efficient power conversion for portable applications. The DJ-LF-P designation indicates a specific package variant and compliance status within the broader product family, distinguishing it from other pinouts or thermal ratings available in the same series.

LED Driver IC Replacement Considerations

Direct substitutes include MP3205DJ-LF-Z and MP3205DJ. Verify pinout compatibility and electrical parameter alignment with the original datasheet before implementation.

LED Driver IC FAQ

Does the MP3205DJ-LF-P require a microcontroller for operation?

No, the regulator serves as a stand-alone LED driver where current configuration is handled via external resistors, eliminating the need for microcontroller intervention.

What is the maximum number of LEDs supported by this driver?

The MP3205 is designed to drive up to five series-connected white LEDs.