Power management integrated circuits or ICs are a type of electronic semiconductor device designed to enable certain electronic devices to operate efficiently at different voltages while using batteries as the chief source of power. They help these devices to retain the batteries as long as possible, ensuring smooth functioning.
Types of power management ICs
Power management ICs (PMICs) are available in a wide range of varieties, often depending on their specific functions. These include:
AC-DC converters: These types of PMICs convert the AC house current into DC. Hence, AC-DC converters are usually used by devices like computer modems, routers and similar electronic equipment.
Buck converters: These types of Power Management ICs are DC to DC converters, generating a lower output voltage than the original input voltage.
DC-DC controllers: Power Management ICs like DC-DC controllers are designed to manage the electrical charge of the battery.
DC-DC converters: As the name suggests, these types of converters generate different output voltage than the original input voltage. Unlike the buck converters, a DC-DC converter is capable of increasing as well as decreasing the output voltage.
Intelligent power switches: These are specially designed PMICs which are responsible for monitoring electrical conditions in a circuit and producing an active response when and as necessary.
Linear voltage regulators: These devices are designed to ensure that the electrical voltage remains constant across all the connected systems.
Motor driver ICs: These types of power management ICs are particularly designed for electric motors and are used in a wide range of applications.
Voltage references: These devices are responsible for ensuring that a consistent voltage is supplied regardless of the load.
Functions
A Power Management Integrated Circuit is capable of a wide array of functions, including:
They are often used for complete battery management, including charging, monitoring and measuring the battery of a device.
They can be used for passive as well as inactive voltage regulation.
PMICs have charging functions as well, ensuring that the electric charge in a battery is well replenished as necessary.
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