LP55271TLX/NOPB

LED Driver IC Overview

The LP55271TLX/NOPB is a programmable LED driver regulator manufactured by Texas Instruments. It features an integrated step-up (boost) DC-DC converter topology with internal switching elements, designed to drive multiple LED channels efficiently. The device provides five independent outputs, capable of delivering up to 1.7A per channel through the internal switches. Operating at a switching frequency range of 1MHz to 2MHz, it supports output voltage regulation between 4V and 5.4V. Packaged in a 30-WFBGA format, this component is engineered for high-density applications requiring precise current control and multi-channel synchronization.

LED Driver IC Feature Summary

• Integrates a boost converter with internal switches for efficient power management
• Provides five independently controllable output channels for flexible LED driving
• Supports high-frequency operation to minimize external passive component size

LED Driver IC Applications

• Display backlight systems
• Camera flash units

LED Driver IC Procurement Notes

Verify the specific package marking and date code against the manufacturer's latest documentation to ensure authenticity. Confirm RoHS compliance status as required by regional regulations. Check for any obsolete status notifications or lifecycle changes directly from Texas Instruments before finalizing procurement decisions.

LED Driver IC Selection Notes

Select this component when designing circuits requiring multi-channel LED regulation with integrated power conversion. Ensure the application demands fit within the specified output voltage and current limits. Consider thermal management requirements due to the integrated switch design and high-frequency operation characteristics inherent to this driver family.

LED Driver IC Part Context

This part belongs to the LP55xx series of programmable LED drivers from Texas Instruments. These components are widely used in portable electronics where space constraints necessitate integrated power solutions. The LP55271 variant specifically targets applications needing synchronized multi-channel control with built-in boost functionality for white LED backlighting or flash applications.

LED Driver IC Replacement Considerations

Consult official Texas Instruments substitution guides for compatible alternatives. Verify pin compatibility and electrical specifications if considering cross-references from other manufacturers.