MP1519DQ-LF-P

LED Driver IC Overview

The MP1519DQ-LF-P is a monolithic LED driver IC designed for powering four white LEDs from a single Li-Ion or three NiMH cell source. It utilizes a charge pump topology to regulate output current up to 22 mA per channel. The device operates within an input voltage range of 2.5 V to 5.5 V and switches at a frequency of 1.3 MHz. It supports analog dimming and is housed in a QFN-16 package, functioning as a fully automatic driver without requiring external microcontrollers.

LED Driver IC Feature Summary

• Fully automatic operation for driving four white LEDs without microcontroller intervention
• Integrated charge pump topology enables efficient power conversion from low-voltage sources
• Supports analog dimming control for brightness adjustment

LED Driver IC Applications

• Portable devices powered by single Li-Ion batteries
• Systems utilizing three NiMH cells
• White LED backlighting applications

LED Driver IC Procurement Notes

Verify the specific suffix (LF-P) against the manufacturer's latest documentation to confirm lead-free compliance and tape-and-reel packaging specifications. Ensure the component matches the exact QFN-16 footprint and pinout requirements for your PCB design. Cross-reference the datasheet revision date to confirm compatibility with your system's electrical constraints.

LED Driver IC Selection Notes

Select this component when designing circuits that require driving four white LEDs from a single-cell lithium-ion or multi-cell NiMH battery source. It is suitable for applications needing fixed current regulation up to 22 mA per channel. Consider the 1.3 MHz switching frequency for EMI management and the QFN-16 package for space-constrained designs.

LED Driver IC Part Context

This part belongs to the MP1519 series of LED drivers manufactured by Monolithic Power Systems. It is specifically engineered for portable electronics where efficiency and simplicity are critical. The device integrates the necessary power stages and control logic to drive multiple high-brightness LEDs directly from low-voltage battery packs.

LED Driver IC Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.