The Allegro APEK4915MLP is a DC-DC buck converter designed for automotive applications. It is an automotive-grade integrated buck converter with synchronous rectification and current-mode control, and an adjustable switching frequency. It is rated at 4.5A continuous and 9.0A peak output current, and features a wide 4.5-40V input voltage range and adjustable output voltage range of 0.8V to 28V. This converter also incorporates a low-ripple Burst Mode operation, which reduces both input and output ripple. Additionally, it has a low-profile package, with an exposed pad for improved power dissipation. It also features an integrated soft-start, thermal shutdown, and over current protection, making it a reliable power solution for automotive applications.