The Recipe Book

Full write-ups of reference designs and tutorials: what it does, what's in it, and where to find the source.

Power / DC-DC Buck

SY21219 6 A synchronous buck: 5 V at 6 A from up to 30 V

Silergy · SY21219-DS

Reference circuit from the SY21219 datasheet: a 6 A synchronous buck for 5 V from 4.5–30 V at 500 kHz in QFN2×3-14, with the full bill of materials, design equations, a worked example and layout notes.