This session offers deep understanding of buck regulator performance and its reliability aspect. Buck regulator is the most widely used topology. Once the system power need is calculated, identifying the right power management chip is critical to a project's success. Session attendees should be able to identify and review critical DC-DC converter specifications and choose the best power solution based on their need. Calculating/selecting the passives and discrete around the buck regulator to create a robust design is discussed. Finally, measurement of key parameters to ensure the thermal, and loop stability is shared.