{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM317LCPW","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM317LCPW","canonicalUrl":"https://icboms.com/texas-instruments/LM317LCPW","factsUrl":"https://icboms.com/api/mcp/products/LM317LCPW","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM317LCPW, adjustable positive linear regulator, 100 mA output, 80 dB ~ 65 dB PSRR at 120 Hz, 8-TSSOP package, surface mount.","salesMarkdown":"## Adjustable 100 mA rail for noise-sensitive loads The LM317LCPW is a positive adjustable linear regulator from Texas Instruments delivering up to 100 mA output current from a 1.2 V to 32 V output range, with a maximum input voltage of 38 V. Its PSRR of 80 dB to 65 dB at 120 Hz means it cleans up ripple from a rectified AC rail or switching pre-regulator before feeding sensitive analog stages — op-amp supplies, ADC reference buffers, or low-noise bias lines. The 2.5 mA quiescent current is typical for a three-terminal adjustable regulator of this class; it does not dominate the load budget at 100 mA output, but the dropout voltage should be checked against the minimum input-to-output differential for the target current. ## Protection and package realities for the assembly line Built-in over-current, over-temperature, and short-circuit protection reduce the external component count — no need for a separate crowbar or thermal shutdown IC on the secondary side of the rail. The 8-TSSOP package (4.40 mm width, 0.65 mm pitch typical for the family) is a standard surface-mount footprint. The tube shipping format means the parts arrive in anti-static tubes, not tape-and-reel — factor a tube-to-tape conversion if your pick-and-place feeder expects embossed carrier tape. This part can be designed into new production without an obsolescence clock. ROHS3 compliance is confirmed, which simplifies EU and global market compliance documentation.","metaTitle":"LM317LCPW Texas Instruments Adjustable Linear Regulator 100","metaDescription":"LM317LCPW from Texas Instruments: adjustable positive linear regulator, 100 mA output, 80 dB PSRR at 120 Hz, 8-TSSOP package. Active lifecycle, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","PSRR":"80dB ~ 65dB (120Hz)","Series":"-","Package":"Tube","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"8-TSSOP (0.173\\\", 4.40mm Width)","Product Status":"Active","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":"0°C~125°C","Voltage - Input (Max)":"38V","Voltage Dropout (Max)":"-","Voltage - Output (Max)":"32V","Supplier Device Package":"8-TSSOP","Current - Quiescent (Iq)":"2.5 mA","Voltage - Output (Min/Fixed)":"1.2V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9800","priceTiers":[{"qty":1,"price":"$0.98000","currency":"USD"},{"qty":10,"price":"$0.87200","currency":"USD"},{"qty":25,"price":"$0.82800","currency":"USD"},{"qty":100,"price":"$0.68020","currency":"USD"},{"qty":250,"price":"$0.63584","currency":"USD"},{"qty":500,"price":"$0.56190","currency":"USD"},{"qty":1000,"price":"$0.44361","currency":"USD"},{"qty":2500,"price":"$0.41850","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6e1b4db1f31e3d4f44355e3bccdda90e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM317LCPW/alternatives.json"},"ai":{"faq":[{"question":"What is the PSRR of LM317LCPW and why does it matter?","answer":"This means the regulator attenuates 120 Hz ripple from a full-wave rectified supply by a factor of 10,000 to 1,800 — critical for keeping hum out of analog audio, instrumentation, or data-converter supply rails."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM317LCPW","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM317LCPW 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}}