SSL21153T/1,118

Overview

The SSL21153T/1,118 is an integrated circuit LED driver manufactured by NXP Semiconductors. It functions as a DC-DC regulator supporting multiple converter topologies including flyback, SEPIC, step-down (buck), and step-up (boost). The device provides one output channel with a switch current capability of 1.5A. It is housed in a 7-SOIC package and supports dimming control for LED applications.

Feature Summary

• Supports versatile DC-DC converter topologies including flyback, SEPIC, buck, and boost configurations
• Integrated single-output LED driver with 1.5A switch current capacity
• Includes dimming control functionality for light management

Applications

• LED lighting systems requiring flyback or buck topology
• General-purpose DC-DC regulation applications
• Dimmable LED driver circuits

Procurement Notes

Verify the exact part marking and package type against the official datasheet to ensure compatibility with your PCB footprint. Confirm that the 7-SOIC package dimensions match your assembly requirements. Check for any specific ordering suffixes that may indicate tape-and-reel packaging versus tube quantities if applicable to your manufacturing process.

Selection Notes

Select this component when a single-channel LED driver with high current capability is needed across various converter topologies. It is suitable for designs requiring flexibility between buck, boost, or flyback architectures. Ensure the input voltage range and thermal performance meet the specific application constraints before finalizing the design.

Part Context

This IC belongs to the power management category, specifically within the LED drivers segment. It is designed to replace older discrete solutions or less flexible driver ICs by integrating multiple converter capabilities into a single chip. It serves as a key component in modern LED lighting power supplies.

Replacement Considerations

Check for direct pin-to-pin replacements from NXP's SSL series. Verify that alternative LEDs drivers support the same 1.5A current rating and compatible control interfaces. Ensure the replacement package matches the 7-SOIC form factor.