The scenario
Designing a DC-DC buck converter for adjustable output voltage from a 12V input.
What is in this drawing
Read the decisions behind it.
01
Use of LM2596 for high efficiency and simple design
02
Feedback resistor network to set output voltage
03
Catch diode and inductor selection for continuous conduction mode
Reusable for any adjustable buck converter where a fixed input voltage needs to be stepped down to an adjustable lower voltage.
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