I am new to power supply circuits. I am studying datasheet of buck regulator LM22676 which generate 5V/3.3V dc for micro-controller supply in one of my system.The datasheet says it has a N-channel mosfet capable of driving upto 3A.
The place i first read about buck-boost converter is in Power electronics class in EE which uses a thyrsitor as switch with additional L,C filters.In power electronics the focus of study was driving high power dc loads like dc motors with dc-dc converters circuits with thyristor and gating circuit.
Is the buck converter principle used in LM22676 same compared to power electronic theory? Do integrated power converters exist in power electronics as well instead using thyristor based circuits?