SC4541ULTRT

Overview

The SC4541ULTRT is a high-frequency LED driver IC from Semtech, designed for single-wire backlight applications. It features an integrated Schottky diode and supports boost and buck topologies. The device operates within a supply voltage range of 2.9 V to 22 V and delivers output currents of 100 mA or 200 mA. It functions at a switching frequency of 2 MHz and is housed in a 6-pin MLPD-UT EP package.

Feature Summary

• Integrates a Schottky diode to simplify interconnect requirements
• Supports both boost and buck converter topologies for flexible LED driving
• Designed for single-wire backlight control interfaces

Applications

• Single-wire backlight drivers
• Automotive LED lighting systems
• High-frequency LED driver circuits

Procurement Notes

Verify the specific ordering suffix and package variant against official Semtech documentation to ensure compatibility with design requirements. Confirm RoHS compliance status and automotive qualification details as stated in the manufacturer's datasheet prior to procurement.

Selection Notes

Select this component for applications requiring a compact solution with integrated power components. Consider the 2 MHz operating frequency and available current options when designing the external circuitry. Ensure the input voltage range aligns with the system's power supply specifications.

Part Context

This part belongs to the SC454 series of LED drivers from Semtech. It is specifically engineered for high-frequency operation and integrates key passive elements to reduce board space. The series includes variants like the SC4541SKTRT, offering different packaging options such as SOT-23.

Replacement Considerations

The SC4541SKTRT is a documented alternative within the same family, utilizing a SOT-23 package instead of the MLPD-UT-6 form factor.