New trends and changing requirements in the power management industry influence how we design power supplies. Some, like the need for telemetry and system information, are more recent due to advancements in technology. Others, like the demand for smaller solutions, higher levels of integration, faster transient response and high switching frequencies, have been around for decades. But throughout the entire history of power system design there has been one requirement that has been constant: the need for a stable power supply. Read this white paper to learn how to design a stable power supply.