LM3555TLX/NOPB

LED Driver IC Overview

The LM3555TLX/NOPB is a synchronous boost converter and high-side current source designed for camera flash applications. It integrates a 2 MHz switching regulator with I2C control interface. The device supports grounded cathode LED operation via a high-voltage high-side current source. It operates within an ambient temperature range of -30°C to +85°C. The component is housed in a 12-DSBGA surface-mount package.

LED Driver IC Feature Summary

• Integrates a synchronous boost converter with a 2 MHz switching frequency for compact design
• Features a high-voltage high-side current source enabling grounded cathode LED configurations
• Includes an I2C digital control interface for precise dimming and operational management

LED Driver IC Applications

• Camera flash systems
• Mobile device lighting modules
• Portable electronic illumination circuits

LED Driver IC Procurement Notes

Verify the specific suffix TLX against official Texas Instruments documentation to confirm reel packaging specifications. Confirm that the NOPB designation indicates lead-free and RoHS compliance status as defined in the manufacturer's datasheet. Ensure the 12-DSBGA package dimensions match the target PCB footprint requirements before integration.

LED Driver IC Selection Notes

Select this component when a compact solution for camera flash driving is required. The integrated synchronous boost topology reduces external component count compared to asynchronous designs. The I2C interface allows for system-level control integration. Verify that the 500 mA output current capability meets the specific LED array requirements of the application design.

LED Driver IC Part Context

This part belongs to the LM3555 family of LED drivers from Texas Instruments. These devices are specialized power management ICs intended for portable electronics requiring high-efficiency flash lighting. The series typically combines boost conversion with constant current regulation in a small form factor suitable for space-constrained mobile devices.

LED Driver IC Replacement Considerations

Consult official Texas Instruments substitution guides for verified alternatives. Cross-reference pinouts and electrical characteristics with potential replacement parts to ensure compatibility with existing circuit designs.