LP55271TL/NOPB

LED Driver IC Overview

The LP55271TL/NOPB is an LED driver IC featuring a DC-DC step-up regulator and five output channels. It supports up to 1.7A switch current for camera flash applications. The device operates within a voltage range of 4V to 5.4V and functions across a temperature range of -30°C to 85°C. It utilizes a 30-pin WFBGA package.

LED Driver IC Feature Summary

• Integrates a DC-DC boost converter for high-current LED driving
• Provides five independent output channels for LED control
• Supports I2C programmability for configuration and dimming

LED Driver IC Applications

• Camera flash systems
• Mobile device LED indicators
• Portable electronics lighting

LED Driver IC Procurement Notes

Verify the manufacturer designation, as National Semiconductor assets are managed by Texas Instruments. Confirm the specific suffix 'NOPB' indicates lead-free compliance and RoHS status. Ensure the package type matches the required 30-pin WFBGA footprint for PCB layout compatibility.

LED Driver IC Selection Notes

Select this component when a compact solution for camera flash or multi-channel LED control is required. The integrated boost converter simplifies design by eliminating external inductors for certain configurations. Verify that the input voltage range aligns with the system power supply specifications.

LED Driver IC Part Context

This part belongs to the LP5527 series of tiny LED drivers designed for portable devices. It shares functional similarities with the LP5527 but offers enhanced capabilities for higher current applications. The series is optimized for space-constrained designs in mobile and consumer electronics.

LED Driver IC Replacement Considerations

The LP55271TL (without NOPB) is a compatible variant differing primarily in packaging or environmental compliance details. Verify pinout and electrical specifications against the LP5527 series before substitution.