{"schemaVersion":1,"slug":"linear-voltage-regulator","name":"Linear voltage regulator","kind":"symbol","abbreviation":"LIN REG","aliases":["Linear voltage regulator","Linear voltage regulator functional block","Linear voltage regulator schematic reference"],"category":"electronics-components","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"A linear regulator controls its pass element to maintain a specified output voltage from a suitable input.","description":["A linear regulator controls its pass element to maintain a specified output voltage from a suitable input.","A small electronic circuit can receive a regulated supply from a higher DC input through the selected regulator.","Show input supply, regulated output and the regulator’s reference connection. A linear regulator adjusts its conducting element rather than using the same switching arrangement as a switch-mode converter. The input/output difference and load affect heat, which must be assessed for the actual device and installation. This is original functional artwork, not a certified standard graphic or device pinout."],"readingNotes":["Identify input, output and reference connections.","Reference required headroom and output components.","Check the selected load and thermal arrangement.","The input/output voltage difference and load create heat that must be considered."],"drawingChecklist":["Identify input, output and reference connections.","Reference required headroom and output components.","Check the selected load and thermal arrangement."],"distinction":"The input/output voltage difference and load create heat that must be considered.","facts":[{"label":"Representation type","value":"Original functional block; not a certified IEC or IEEE graphic"},{"label":"Concept input","value":"Suitable DC input"},{"label":"Concept output","value":"Regulated DC output"}],"references":[{"sourceId":"expansion-20261027-ldo","relevance":"Linear voltage regulation: public technical context for the named function. Product and compliance details remain with the publisher."}],"related":["series-voltage-reference","low-dropout-voltage-regulator","power-converter","terminal"],"artwork":"expanded-linear-voltage-regulator","publishedOn":"2026-10-27","updatedOn":"2026-10-27","provenance":"independent-public-research","plainEnglish":{"title":"What does Linear voltage regulator mean?","introduction":"A linear regulator controls its pass element to maintain a specified output voltage from a suitable input.","example":"A small electronic circuit can receive a regulated supply from a higher DC input through the selected regulator.","drawings":"Show input supply, regulated output and the regulator’s reference connection. A linear regulator adjusts its conducting element rather than using the same switching arrangement as a switch-mode converter. The input/output difference and load affect heat, which must be assessed for the actual device and installation.","terms":[{"name":"Headroom","meaning":"The input-to-output voltage difference needed for the selected operating conditions."},{"name":"Thermal design","meaning":"The arrangement for managing heat and temperature."}],"diagram":"flow","caption":"Original functional explanation. Arrows show information or energy roles; two-headed arrows identify two-way interfaces. This is not a pinout, certified standards graphic or complete circuit.","sources":[{"label":"Linear voltage regulation","url":"https://www.ti.com/product-category/power-management/linear-ldo-regulators/overview.html"}],"profileId":"researched-functional-reference","checklist":["Identify input, output and reference connections.","Reference required headroom and output components.","Check the selected load and thermal arrangement."],"questions":[{"question":"Does unused input voltage disappear without a cost?","answer":"No. The voltage difference across the conducting path together with current produces loss. The selected regulator, load and thermal design determine the resulting temperature and permitted operation."}],"steps":["Suitable DC input","Linear regulating element","Regulated DC output"],"bidirectional":false},"url":"https://eloragrid.ai/symbols/linear-voltage-regulator","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/linear-voltage-regulator.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"expansion-20261027-ldo","title":"Linear voltage regulation","publisher":"Texas Instruments","url":"https://www.ti.com/product-category/power-management/linear-ldo-regulators/overview.html","type":"manufacturer","scope":"Public functional documentation. Original explanatory text and educational block artwork; no publisher graphics or files reproduced.","checkedOn":"2026-10-27","reuse":"link-only","relevance":"Linear voltage regulation: public technical context for the named function. Product and compliance details remain with the publisher."}]}