PMIC - Hot Swap Controllers ensure the safe insertion and removal of boards or components in a live system without causing damage. They control the inrush current and provide protection against faults like over-voltage, under-voltage, and short circuits.

These controllers are essential in systems requiring high availability and reliability, such as telecom equipment, servers, and networking devices, allowing maintenance without system downtime.

Key players in the hot swap controller market include Analog Devices, Texas Instruments, and Maxim Integrated, known for their robust and reliable solutions.