Integrated circuits combine a large number of transistors and other elementary electronic components in miniaturized form into a single physical device, designed for a specific purpose or function and characterized by its performance of that function rather than by the behavior of its component pieces.
Examples include microcontrollers, battery monitors and charge controllers, analog to digital converters, operational amplifiers, logic gates, voltage regulators, gate drivers, motor controllers, and others.
In more detail:
Integrated circuits combine many basic electronic components - such as transistors, diodes, resistors and capacitors - on a semiconductor chip, forming a single complex circuit system.
These integrated circuits are designed to implement higher-level electronic functions, such as digital signal processing, analog signal processing, PWM signal generation, motor control, battery management, and so on.
By integrating tens of thousands of components on a chip, integrated circuits can realize extremely complex circuit and functional levels. They have smaller sizes, higher reliability, lower costs, higher customizability and higher production efficiency.
Integrated circuits are the foundation for realizing modern electronic products and enabling these products to become smaller, more powerful, more intelligent, more reliable and more cost-effective.