{"schemaVersion":1,"slug":"buck-converter-topology","name":"Buck converter topology","kind":"symbol","abbreviation":"BUCK","aliases":["step down switching converter","buck regulator"],"category":"microgrid-systems","drawingTypes":["Schematic","SLD"],"referenceFamilies":["Manufacturer"],"summary":"A switching converter arrangement used to produce a lower DC output from its input under the documented operating conditions.","description":["A switching converter arrangement used to produce a lower DC output from its input under the documented operating conditions.","On a schematic, identify the input supply, switching node, energy-storage inductor and return and trace the regulated output, feedback path and freewheeling arrangement. Keep the component tag and signal/reference names consistent across the control drawing, terminal schedule and device documentation.","Buck identifies a conversion topology; its schematic does not by itself define an isolated supply or an allowed operating range.","The preview is a conceptual topology reference rather than a complete power-stage circuit. Switching sequences, magnetic design, component selection and control/protection details belong in the equipment design documentation."],"readingNotes":["Identify the input supply, switching node, energy-storage inductor and return.","Trace the regulated output, feedback path and freewheeling arrangement."],"drawingChecklist":["Label the input supply, switching node, energy-storage inductor and return.","Cross-reference the regulated output, feedback path and freewheeling arrangement.","Add the selected device or circuit documentation revision, power/reference connections and project signal convention."],"distinction":"Buck identifies a conversion topology; its schematic does not by itself define an isolated supply or an allowed operating range.","facts":[{"label":"Common schematic mnemonic","value":"BUCK — descriptive only; project/device documentation defines reference designations."},{"label":"Terminal / interface focus","value":"The input supply, switching node, energy-storage inductor and return"},{"label":"Artwork scope","value":"Original conceptual topology block; not a complete switch-level circuit."}],"references":[{"sourceId":"pub-electronics-ti-topologies","relevance":"Public primary manufacturer documentation establishes the component function or circuit/topology relationship. Preview geometry and drafting explanations are independently authored."}],"related":["boost-converter-topology","power-converter"],"artwork":"electronics-power-buck","publishedOn":"2026-10-14","updatedOn":"2026-10-14","provenance":"independent-public-research","url":"https://eloragrid.ai/symbols/buck-converter-topology","illustration":{"url":"https://eloragrid.ai/library/illustrations/buck-converter-topology.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"pub-electronics-ti-topologies","title":"Power topology selection and public topology tutorials","publisher":"Texas Instruments","url":"https://www.ti.com/video/series/power-topology-selection.html","type":"manufacturer","scope":"Public tutorials identifying buck, boost, buck-boost, SEPIC, Cuk, Zeta, flyback, forward, push-pull and bridge conversion arrangements. Catalogue previews are conceptual topology/function blocks, not certified standard glyphs or complete power-stage schematics.","checkedOn":"2026-10-14","reuse":"link-only","relevance":"Public primary manufacturer documentation establishes the component function or circuit/topology relationship. Preview geometry and drafting explanations are independently authored."}]}