LP5811BDRRR

LED Driver IC Overview

The LP5811BDRRR is a synchronous boost LED driver IC from Texas Instruments, designed for RGBW applications. It operates within an input voltage range of 0.5V to 5.5V, with a minimum startup voltage of 1.8V. The device features four independent outputs capable of delivering up to 300mA per channel, supporting output voltages between 3V and 5.5V. It utilizes a 12-WDFN (3x3mm) surface-mount package and supports PWM dimming. The component functions as a DC-DC step-up regulator, integrating necessary power stages for efficient LED illumination control in compact designs.

LED Driver IC Feature Summary

• Integrates synchronous boost topology for high-efficiency power conversion
• Supports four-channel RGBW LED configurations with individual current control
• Enables precise brightness adjustment through analog and PWM dimming interfaces

LED Driver IC Applications

• RGBW LED lighting modules requiring compact form factors
• Portable electronic devices utilizing surface-mount LED arrays
• General-purpose LED illumination systems needing step-up regulation

LED Driver IC Procurement Notes

Verify the specific suffix 'B' against the manufacturer's latest documentation to confirm pinout and electrical characteristics, as suffixes often denote revisions or specific binning. Ensure the 12-WDFN package dimensions align with your PCB footprint. Confirm that the 0.5V to 5.5V input range matches your system's power supply capabilities before finalizing procurement.

LED Driver IC Selection Notes

Select this component when a synchronous boost architecture is required for driving multiple LED channels from a low-voltage source. It is suitable for designs prioritizing efficiency and space savings over discrete solutions. Consider the 300mA output capability and the 1.8V startup requirement to ensure compatibility with the target application's power budget and LED forward voltage requirements.

LED Driver IC Part Context

This part belongs to the LP5811 series of LED drivers from Texas Instruments. It is categorized under PMIC LED Drivers and Lighting Driver ICs. The device is actively produced and available for purchase, representing a solution for integrated LED management in consumer electronics and lighting applications where size and efficiency are critical constraints.

LED Driver IC Replacement Considerations

Check for newer alternatives listed on the manufacturer's website, as legacy parts may have successors. Verify functional equivalence regarding the boost topology, channel count, and package type if substituting with other RGBW drivers.