Switch ICs are integrated circuits designed to control the connection and disconnection of electrical signal or power paths within an electronic system. They provide a compact, semiconductor-based method for routing, isolating, or selecting between multiple lines under defined control conditions.

These devices are commonly used to manage signal flow and simplify circuit-level switching functions compared with discrete implementations.

• Core function: Enable or block conduction between circuit nodes in a controlled manner
• Switching scope: Support switching of analog and/or digital signals depending on device design
• Integration role: Combine switching elements and control logic within a single IC to streamline system design