{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM350K STEEL","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM350K-STEEL","canonicalUrl":"https://icboms.com/texas-instruments/LM350K-STEEL","factsUrl":"https://icboms.com/api/mcp/products/LM350K%20STEEL","rawCanonicalId":null},"summary":{"shortDescription":"LM350K STEEL, adjustable positive voltage regulator, 3A output, 1.25V to 33V output range, 35V max input, PSRR 86dB~65dB (120Hz), TO-204AA (TO-3) steel package, through-hole mount, 0°C~125°C operating range.","salesMarkdown":"## 3A adjustable regulator in a steel TO-3 can The LM350K STEEL is a positive adjustable voltage regulator delivering up to 3A output current in the classic TO-204AA (TO-3) steel package. Output voltage is set with two external resistors from a 1.25V reference up to 33V, with a 35V maximum input. PSRR is specified at 86dB to 65dB at 120Hz, which means the regulator attenuates 120Hz full-wave rectifier ripple by a factor of roughly 20,000 at the low end. For a 1Vpp ripple on the input, less than 50µVpp appears at the output at 120Hz. This matters when powering analog front-ends, reference circuits, or audio stages where line-frequency hum couples into the signal path. Built-in over-current, over-temperature, and short-circuit protection let the regulator survive output shorts indefinitely without external foldback circuitry. The thermal shutdown threshold is set above the 125°C operating maximum, so the die temperature governs the safe operating area in a high-dissipation layout.","metaTitle":"LM350K STEEL Adjustable Regulator, 3A, TO-3, PSRR 86dB","metaDescription":"LM350K STEEL adjustable positive voltage regulator, 3A output in TO-204AA (TO-3) steel package. PSRR 86dB~65dB at 120Hz.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","PSRR":"86dB ~ 65dB (120Hz)","Series":"-","Package":"Bulk","Output Type":"Adjustable","Mounting Type":"Through Hole","Package / Case":"TO-204AA, TO-3","Product Status":"Active","lifecycle_stage":"eol_hot","Control Features":"-","Current - Output":"3A","Protection Features":"Over Current, Over Temperature, Short Circuit","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"0°C~125°C","Voltage - Input (Max)":"35V","Voltage Dropout (Max)":"-","Voltage - Output (Max)":"33V","Supplier Device Package":"TO-3-2","Voltage - Output (Min/Fixed)":"1.25V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$76.3600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/76351859374e7d06d4b93d018b0ab797.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM350K%20STEEL/alternatives.json"},"ai":{"faq":[{"question":"What protection features does the LM350K STEEL have?","answer":"The regulator includes over-current, over-temperature, and short-circuit protection. These are built in, so no external foldback or crowbar circuits are needed for basic fault handling."},{"question":"What is the PSRR of the LM350K STEEL?","answer":"PSRR is specified as 86dB to 65dB at 120Hz. This means the regulator attenuates 120Hz ripple by 86dB at light loads, tapering to 65dB at higher output currents — still enough to keep line-frequency ripple well below 100µVpp in most applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM350K-STEEL","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM350K-STEEL when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}