The BSS84 transistor, a popular P-channel MOSFET, is widely used in voltage regulation applications and power circuits. However, like all electronic components, it can sometimes fail, leading to significant voltage regulation problems. These issues can result in malfunctioning circuits, power instability, and even permanent damage to other sensitive components in the system. In this article, we will delve into the common causes of BSS84 failure and explore effective solutions to resolve voltage regulation issues.