{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM317LCDRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM317LCDRG4","canonicalUrl":"https://icboms.com/texas-instruments/LM317LCDRG4","factsUrl":"https://icboms.com/api/mcp/products/LM317LCDRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM317LCDRG4, adjustable positive voltage regulator, 100 mA output, 1.2V to 32V output range, 38V max input, PSRR 80dB~65dB (120Hz), 8-SOIC surface mount package, 0°C~125°C operating temperature.","salesMarkdown":"## 100 mA adjustable regulator in 8-SOIC Output voltage is adjustable from 1.2 V to 32 V using two external resistors, with a maximum input voltage of 38 V. The single regulator output is positive-configuration only. ## PSRR and protection — what the specs mean for the rail PSRR is specified at 80 dB to 65 dB at 120 Hz, which means this part attenuates full-wave-rectified ripple by a factor of 10,000 to 1,800. For an analog supply rail feeding an op-amp or ADC reference, that 80 dB floor at line frequency keeps the 120 Hz ripple out of the signal chain. Built-in protection includes over-current, over-temperature, and short-circuit shutdown. The 2.5 mA quiescent current is typical for a three-terminal adjustable regulator at this current rating — not a low-Iq part, but the protection features make it a robust choice for unregulated input rails where fault conditions are expected. No AEC-Q100 automotive qualification is listed for this variant.","metaTitle":"Texas Instruments LM317LCDRG4 Adjustable Regulator, 100 mA","metaDescription":"Texas Instruments LM317LCDRG4 adjustable positive voltage regulator, 100 mA output, PSRR 80dB~65dB (120 Hz), 8-SOIC package. Active product, sourced per RFQ.","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":"0°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":"$0.4900","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/6e1b4db1f31e3d4f44355e3bccdda90e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM317LCDRG4/alternatives.json"},"ai":{"faq":[{"question":"What is the output current of LM317LCDRG4?","answer":"The LM317LCDRG4 is rated for 100 mA maximum output current. This is the low-current SOIC-8 variant of the LM317 family; the standard LM317 (TO-220) delivers 1.5 A, so check your load budget before substituting."},{"question":"What is the difference between LM317LCDRG4 and LM317L?","answer":"The LM317LCDRG4 is the 8-SOIC surface-mount variant of the LM317L low-current adjustable regulator. Both share the same 100 mA output rating and adjustable output from 1.2 V to 32 V, but the RG4 suffix specifically identifies the SOIC-8 package and Tape & Reel delivery. The LM317L base number is also available in TO-92 and other packages — the RG4 is the surface-mount option for reflow assembly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM317LCDRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM317LCDRG4 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}}