{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM317LCD","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM317LCD","canonicalUrl":"https://icboms.com/texas-instruments/LM317LCD","factsUrl":"https://icboms.com/api/mcp/products/LM317LCD","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM317LCD, adjustable positive linear voltage regulator, 100 mA output, 1.2 V to 32 V adjustable output, 8-SOIC surface-mount package.","salesMarkdown":"## Regulator identity and output capability The LM317LCD is a 100 mA adjustable positive linear regulator from Texas Instruments, housed in an 8-SOIC surface-mount package (0.154-inch body width). 100 mA is the headline rating—drive a clean analog rail or a low-power MCU from it, but stay clear of continuous 100 mA at high input-to-output differential without thermal derating on the 8-SOIC footprint. ## Supply range and protection Maximum input voltage is 38 V, and the output can be adjusted from 1.2 V up to 32 V via two external resistors. Dropout is not explicitly listed, but for a classic three-terminal adjustable regulator expect around 2 V headroom. On-chip protection covers over-current, over-temperature, and short-circuit—useful if the load side faults. ## PSRR and quiescent current for analog rails PSRR runs 80 dB down to 65 dB at 120 Hz—that's enough ripple rejection to feed a low-noise op-amp supply from a noisy pre-regulator. Quiescent current is 2.5 mA typical; that's the self-consumption when the output is lightly loaded, so budget it into the overall efficiency for battery-powered designs. ## Temperature range and sourcing posture Operating temperature is 0 °C to 125 °C—commercial-to-hot, fine for indoor and many industrial enclosures.","metaTitle":"LM317LCD – TI Adjustable Linear Regulator, 100 mA, 8-SOIC","metaDescription":"Texas Instruments LM317LCD – adjustable positive linear regulator, 100 mA output, 38 V input max, 80 dB PSRR, 8-SOIC package. Active production. Request quote.","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":"80dB ~ 65dB (120Hz)","Series":"-","Package":"Tube","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm 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-SOIC","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/LM317LCD/alternatives.json"},"ai":{"faq":[{"question":"Is LM317LCD equivalent to LM317T?","answer":"Both are adjustable regulators in the LM317 family, but LM317T is the TO-220 through-hole version rated for higher output current (usually 1.5 A). LM317LCD is a 100 mA surface-mount 8-SOIC variant. They are not pin-compatible or drop-in replacements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM317LCD","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM317LCD 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}}