{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM350AT/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM350AT-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM350AT-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM350AT%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM350AT/NOPB adjustable positive voltage regulator, 3A output, 1.25V to 33V range, 86dB ~ 65dB PSRR at 120Hz, TO-220-3 through-hole package, -40°C to 125°C operating temperature.","salesMarkdown":"The Texas Instruments LM350AT/NOPB is a positive adjustable voltage regulator delivering up to 3 A continuous output. It replaces the need for a fixed-voltage part when the rail must be trimmed to a non-standard value or shared across multiple prototypes. Output voltage adjusts from 1.25 V to 33 V using two external resistors, covering the common 1.8 V, 2.5 V, 3.3 V, 5 V, 12 V, and 24 V rails from a single design. The 35 V maximum input gives 2 V of headroom at the top end. Built-in over-current, over-temperature, and short-circuit protection mean the regulator survives a sustained output fault without external crowbar or foldback circuitry — useful in benchtop supplies, motor-drive housekeeping rails, and industrial control boards where a fault won't be cleared immediately. ## PSRR at 120 Hz — why it matters for post-regulation The LM350AT/NOPB lists a power-supply rejection ratio of 86 dB to 65 dB at 120 Hz. That 86 dB floor at the line-frequency ripple peak means a 1 Vpp input ripple from a rectified mains supply is attenuated to under 50 µVpp at the output — important when the regulator feeds a sensitive analog front-end or a precision reference. The 65 dB figure at the high end of the band is still respectable; it keeps switching-regulator ripple in check if the LM350 is used as a post-regulator after a DC-DC converter. ## Industrial temperature range and through-hole mounting The TO-220-3 through-hole package (supplier device package TO-220-3) bolts to a heatsink or chassis for thermal management. The tab is the output pin — the heatsink pad must be electrically isolated or grounded per the output rail potential.","metaTitle":"LM350AT/NOPB Adjustable Voltage Regulator, 3A, TO-220-3","metaDescription":"Texas Instruments LM350AT/NOPB adjustable positive voltage regulator, 3A output, 1.25V to 33V range, 86dB PSRR, -40°C to 125°C. Active lifecycle.","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":"Tube","Output Type":"Adjustable","Mounting Type":"Through Hole","Package / Case":"TO-220-3","Product Status":"Active","lifecycle_stage":"eol_hot","Control Features":"-","Current - Output":"3A","Base Product Number":"LM350","Protection Features":"Over Current, Over Temperature, Short Circuit","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C~125°C","Voltage - Input (Max)":"35V","Voltage Dropout (Max)":"-","Voltage - Output (Max)":"33V","Supplier Device Package":"TO-220-3","Voltage - Output (Min/Fixed)":"1.25V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.6200","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/826c2ec873d00a45c2e50bb5b7b85357.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM350AT%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"How does LM350AT/NOPB compare to LM317?","answer":"Both are adjustable positive regulators with a 1.25 V reference. The LM350AT/NOPB is rated for 3 A output current, while the LM317 is typically rated for 1.5 A. For loads above 1.5 A, the LM350 is the appropriate choice."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM350AT-NOPB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM350AT-NOPB 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}}