{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM317T/LF01","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM317T-LF01","canonicalUrl":"https://icboms.com/texas-instruments/LM317T-LF01","factsUrl":"https://icboms.com/api/mcp/products/LM317T%2FLF01","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM317T/LF01, adjustable positive linear regulator, 1.5A output, 37V max input, 64dB PSRR at 120Hz, TO-220-3 package, 0°C to 125°C operating range.","salesMarkdown":"## Adjustable 1.5A linear regulator in TO-220-3 The LM317T/LF01 is a positive adjustable linear regulator from Texas Instruments, delivering up to 1.5A continuous output current. Output voltage is set by two external resistors from 1.25V up to 37V. The 64dB PSRR at 120Hz means it rejects rectifier ripple well enough for sensitive analog rails — think op-amp supplies or audio preamp stages. Built-in protection covers over-current, over-temperature, and short-circuit events — no external clamp diodes needed for most bench supplies or breadboard projects. ## Sizing the output for your rail The 1.5A output is continuous, not peak — derate for ambient temperature above 25°C per the datasheet's SOA curve. Quiescent current is 10 mA, which matters for battery-powered designs where every milliamp counts. Input voltage ceiling is 37V; the dropout voltage is typically 2V at 1.5A, so budget headroom. The TO-220-3 package with a tab can dissipate several watts with a heatsink — plan the thermal path early.","metaTitle":"LM317T/LF01 – TI Adjustable Voltage Regulator, 1.5A","metaDescription":"Texas Instruments LM317T/LF01 adjustable linear regulator, 1.5A output, 37V max input, 64dB PSRR at 120Hz. Active production, ROHS3 compliant. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","PSRR":"64dB (120Hz)","Series":"-","Package":"Tube","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"TO-263-4, D²Pak (3 Leads + Tab), Variant","Product Status":"Active","lifecycle_stage":"eol_hot","Control Features":"-","Current - Output":"1.5A","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","Voltage - Input (Max)":"37V","Voltage Dropout (Max)":"-","Voltage - Output (Max)":"37V","Supplier Device Package":"TO-220-3, LF01","Current - Quiescent (Iq)":"10 mA","Voltage - Output (Min/Fixed)":"1.25V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.6500","priceTiers":[{"qty":1,"price":"$2.65000","currency":"USD"},{"qty":10,"price":"$2.37600","currency":"USD"},{"qty":25,"price":"$2.24200","currency":"USD"},{"qty":100,"price":"$1.91010","currency":"USD"},{"qty":250,"price":"$1.79352","currency":"USD"},{"qty":500,"price":"$1.56932","currency":"USD"},{"qty":1000,"price":"$1.30030","currency":"USD"},{"qty":2500,"price":"$1.26900","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/e56db9281768e7250cecd9c037344ff0.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM317T%2FLF01/alternatives.json"},"ai":{"faq":[{"question":"What is the output current rating of the LM317T/LF01?","answer":"1.5A continuous output. This is the maximum DC current the regulator can deliver with adequate heatsinking."},{"question":"Is the LM317T/LF01 equivalent to the standard LM317T?","answer":"The LM317T/LF01 is a specific TI ordering code variant of the LM317 family. It shares the same adjustable 1.5A output and TO-220-3 footprint as the generic LM317T, but the LF01 suffix may indicate a specific test or packaging option. Confirm the BOM's exact order code before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM317T-LF01","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM317T-LF01 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}