{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM317MDT/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM317MDT-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM317MDT-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM317MDT%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM317MDT/NOPB adjustable positive voltage regulator, 500 mA output, 1.25 V to 37 V range, PSRR 80 dB ~ 65 dB at 120 Hz, TO-252-3 surface-mount, 0 °C to 125 °C junction temperature.","salesMarkdown":"## Adjustable 1.25 V to 37 V rail from a TO-252-3 tabbed package It delivers up to 500 mA continuous output over an adjustable range from 1.25 V to 37 V, with a maximum input voltage of 37 V. The TO-252-3 (DPak) surface-mount package puts the output on the tab — the same copper pour that sinks heat also carries the load current, so the PCB layout must connect the tab plane for both electrical and thermal paths. ## PSRR and protection — what the 80 dB at 120 Hz buys you PSRR is specified at 80 dB to 65 dB at 120 Hz. The part also integrates over-current, over-temperature, and short-circuit protection. ## 0 °C to 125 °C — commercial floor, not cold-start rated The 0 °C lower limit means this variant is not qualified for outdoor enclosures, freezer environments, or cold-start automotive. Inside a conditioned industrial cabinet or office equipment, the 0 °C floor is fine.","metaTitle":"LM317MDT/NOPB adjustable voltage regulator, 500 mA, TO-252-3","metaDescription":"Texas Instruments LM317MDT/NOPB adjustable positive voltage regulator, 500 mA output, 1.25 V to 37 V range, PSRR 80 dB ~ 65 dB at 120 Hz, TO-252-3","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","PSRR":"80dB ~ 65dB (120Hz)","Series":"-","Package":"Tube","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"TO-252-3, DPak (2 Leads + Tab), SC-63","Product Status":"Active","lifecycle_stage":"eol_hot","Control Features":"-","Current - Output":"500mA","Base Product Number":"LM317","Protection Features":"Over Current, Over Temperature, Short Circuit","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"0°C~125°C(TJ)","Voltage - Input (Max)":"37V","Voltage Dropout (Max)":"-","Voltage - Output (Max)":"37V","Supplier Device Package":"TO-252-3","Current - Quiescent (Iq)":"10 mA","Voltage - Output (Min/Fixed)":"1.25V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.2300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e56db9281768e7250cecd9c037344ff0.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM317MDT%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum output current of the LM317MDT/NOPB?","answer":"The rated continuous output current is 500 mA. The part will deliver that up to the input-output differential and junction temperature limits; above 500 mA an external pass transistor or a higher-current regulator is needed."},{"question":"What is the PSRR of the LM317MDT/NOPB at line frequency?","answer":"The higher figure applies at lower input-output differentials and lighter loads; the lower figure at higher differentials and full load."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM317MDT-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/LM317MDT-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}}