{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM317LIBPX","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM317LIBPX","canonicalUrl":"https://icboms.com/texas-instruments/LM317LIBPX","factsUrl":"https://icboms.com/api/mcp/products/LM317LIBPX","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM317LIBPX adjustable positive voltage regulator, 100 mA output, 1.2 V to 37 V range, PSRR 80 dB~65 dB at 120 Hz, over-current/over-temperature/short-circuit protection, 6-VFBGA package, -40°C to 125°C.","salesMarkdown":"The Texas Instruments LM317LIBPX is an adjustable positive voltage regulator in a 6-VFBGA package, delivering up to 100 mA output current from a 1.2 V to 37 V output range. The 6-VFBGA (6-DSBGA) footprint is the key differentiator — this is the LM317 shrunk into a tiny BGA for space-constrained boards where a standard TO-220 or SOT-223 won't fit. ## PSRR 80 dB~65 dB at 120 Hz — the noise-sensitive rail angle The PSRR is specified at 80 dB to 65 dB at 120 Hz, which means this regulator attenuates 120 Hz ripple from a rectified mains input by a factor of roughly 10,000 to 1,800. For an analog supply rail feeding an op-amp or ADC front-end, that ripple rejection budget is the difference between a clean 1.2 V reference and a 60 Hz hum component riding on the output.","metaTitle":"LM317LIBPX adjustable regulator, 100 mA, 6-VFBGA, obsolete","metaDescription":"LM317LIBPX adjustable positive regulator, 100 mA output, 1.2 V to 37 V range, PSRR 80 dB~65 dB at 120 Hz.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","PSRR":"80dB ~ 65dB (120Hz)","Series":"-","Package":"Tape & Reel (TR)","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"6-VFBGA","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Control Features":"-","Current - Output":"100mA","Base Product Number":"LM317","Protection Features":"Over Current, Over Temperature, Short Circuit","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C~125°C","Voltage - Input (Max)":"40V","Voltage Dropout (Max)":"-","Voltage - Output (Max)":"37V","Supplier Device Package":"6-DSBGA","Current - Quiescent (Iq)":"2.5 mA","Voltage - Output (Min/Fixed)":"1.2V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/89877edfb652138bbc6081139c1ee52e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM317LIBPX/alternatives.json"},"ai":{"faq":[{"question":"Is LM317LIBPX obsolete?","answer":"Yes, the LM317LIBPX is listed as Obsolete. It is no longer manufactured by Texas Instruments."},{"question":"What is the replacement for LM317LIBPX?","answer":"The standard LM317 in a larger package (TO-220, SOT-223) is functionally similar but not pin-compatible due to the 6-VFBGA footprint. For a drop-in BGA replacement, the only option is surplus inventory of this exact code."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM317LIBPX","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM317LIBPX 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}}