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Switching regulators are a form of circuit commonly known as converters but work at a much higher efficiency than other types of regulators, as they do not require external capacitors making them much more cost-effective for the user. This type of regulator is commonly used for battery powered applications either being single cell, or multi cell as well as portable battery powered devices and protect the appliances from over-current or over-heating damage.
Switching regulators work by regulating energy between two contact points, transforming voltage and input current into a voltage (DC) and an output current (DC). This helps to create an output voltage suitable for the circuit being used.