MP3412EJ-LF-P

Overview

The MP3412EJ-LF-P is a synchronous boost WLED driver from Monolithic Power Systems. It operates with an input voltage range of 800 mV to 4.4 V and provides a regulated output voltage between 2.5 V and 5 V. The device supports a maximum switch current of 1.1 A and functions at a switching frequency of 1.05 MHz. It features a shutdown mode with a typical quiescent current of 380 uA. The component is housed in a TSOT-23-6 package and is rated for operation within a temperature range of -40°C to +125°C.

Feature Summary

• Synchronous boost topology for high efficiency
• Integrated PWM dimming capability
• Low startup voltage enabling single-cell battery operation

Applications

• Mobile phone backlighting
• Portable media player displays
• Digital camera flash systems

Procurement Notes

Verify the suffix 'P' indicates cut tape packaging rather than reel, as datasheets often specify 'Z' for standard reels. Confirm RoHS compliance status through official manufacturer declarations. Ensure the specific lot date code meets project requirements before finalizing orders.

Selection Notes

Select this part when a compact solution for driving white LEDs from a single lithium-ion cell is required. The synchronous design improves efficiency compared to diode-based alternatives. Verify that the 1.1 A current limit aligns with the target LED string configuration and brightness requirements.

Part Context

This component belongs to the MP3412 series of power management ICs designed for portable electronics. It serves as a specialized DC-DC converter optimized for constant current LED driving applications. The family focuses on minimizing external component count while maintaining high performance in small form factors.

Replacement Considerations

MP3412EJ-LF-Z is a parameter-equivalent alternative available from the same manufacturer. Verify if the packaging difference (reel vs. cut tape) impacts assembly line compatibility.