Switching power supplies are known for high efficiency. An adjustable voltage/current supply is an interesting tool, which can be used in many applications such as a Lithium-ion/Lead-acid/NiCD-NiMH battery charger or a standalone power supply. In this article, we will learn to build a variable step-down buck converter using the popular LM2576-Adj chip.
LM2576 Datasheet: https://www.onsemi.com/pub/Collateral/LM2576-D.PDF
LM358 Datasheet: https://www.onsemi.com/pub/Collateral/LM358-D.PDF
LM2576 Library: https://componentsearchengine.com/part.php?partID=531545
LM358 Library: https://componentsearchengine.com/part.php?partID=671517