{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM317LIDRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM317LIDRG4","canonicalUrl":"https://icboms.com/texas-instruments/LM317LIDRG4","factsUrl":"https://icboms.com/api/mcp/products/LM317LIDRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM317LIDRG4, adjustable positive voltage regulator, 100 mA output, 1.2 V to 32 V output range, 80 dB to 65 dB PSRR at 120 Hz, -40°C to 125°C, 8-SOIC surface mount package.","salesMarkdown":"## Active production, 100 mA adjustable regulator in SOIC-8 Output voltage is adjustable from 1.2 V up to 32 V using two external resistors, with a maximum input voltage of 38 V. ## PSRR and protection — what they mean for a noise-sensitive rail PSRR is specified at 80 dB to 65 dB at 120 Hz — this is the ripple rejection a designer gets on a rectified line-frequency supply, useful for powering analog front-ends or low-noise sensor bias where a basic 78xx would pass through 60/120 Hz hum. Built-in protection includes over-current, over-temperature, and short-circuit shutdown — the regulator survives a sustained output short without external clamp diodes in most low-voltage applications. Quiescent current is 2.5 mA typical — not a micropower part, but acceptable for always-on auxiliary rails where the load current is in the tens of milliamps. The base product number is LM317 — the same die family used in the TO-220 and DPAK variants, so the electrical behaviour is consistent across packages for multi-sourcing strategies.","metaTitle":"LM317LIDRG4 Texas Instruments Adjustable Regulator, 100 mA","metaDescription":"Texas Instruments LM317LIDRG4 adjustable positive voltage regulator, 100 mA output, 1.2 V to 32 V range, 80 dB PSRR at 120 Hz, -40°C to 125°C, 8-SOIC.","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":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","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)":"38V","Voltage Dropout (Max)":"-","Voltage - Output (Max)":"32V","Supplier Device Package":"8-SOIC","Current - Quiescent (Iq)":"2.5 mA","Voltage - Output (Min/Fixed)":"1.2V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/6e1b4db1f31e3d4f44355e3bccdda90e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM317LIDRG4/alternatives.json"},"ai":{"faq":[{"question":"Is LM317LIDRG4 obsolete?","answer":"It remains a current-production part suitable for new designs."},{"question":"What is the PSRR of the LM317LIDRG4?","answer":"PSRR is specified at 80 dB to 65 dB at 120 Hz — this is the ripple rejection performance on a line-frequency rectified supply, relevant for powering analog circuits where 60/120 Hz hum must be attenuated."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM317LIDRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM317LIDRG4 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}}