The BCR431U is an adjustable Constant-Current Regulator (CCR) IC in a small SOT23-6 package. With an internal transistor and minimal external components, it is designed to be easy to use and cost-efficient.
Furthermore, the new BCR43X series from Infineon with low voltage drop enables increased efficiency and maximal length of LED tape compared with existing BCR products, which helps reduce cost and effort during installation. This document explains the advantages of low voltage drop linear LED driver ICs. It answers common questions regarding the use of BCR431U in LED strip applications.