{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM2931AD50R","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"LM2931AD50R","canonicalUrl":"https://icboms.com/stmicroelectronics/LM2931AD50R","factsUrl":"https://icboms.com/api/mcp/products/LM2931AD50R","rawCanonicalId":null},"summary":{"shortDescription":"ON Semiconductor LM2931AD50R, 5V fixed-output positive LDO, 100 mA, 75 dB PSRR (120 Hz), 0.6 V dropout max, -40 to 125°C, 8-SOIC.","salesMarkdown":"## 5 V fixed LDO for noise-sensitive, wide-temperature rails The ON Semiconductor LM2931AD50R is a single-output positive LDO regulator delivering a fixed 5 V at up to 100 mA. The junction temperature rating of -40 to 125 °C covers under-hood automotive and industrial enclosures. Input voltage can go to 26 V, so it tolerates unregulated or lightly pre-regulated rails. ## Protection and package Built-in current limit and thermal shutdown protect against output shorts and overloads. The 8-SOIC (3.90 mm width) is a standard surface-mount footprint, compatible with automated assembly. No end-of-life notice or LTB window is indicated. For dual-sourcing or supply resilience, the LD39020DTPU33R is a 3.3 V fixed-output LDO with similar PSRR and a 200 mA rating — note the different output voltage and lower input limit (5.5 V max).","metaTitle":"LM2931AD50R LDO Regulator, 5V Fixed, 100mA, 75dB PSRR","metaDescription":"LM2931AD50R: 5V fixed-output LDO, 100mA, 75dB PSRR at 120Hz, 0.6V dropout max, -40 to 125°C. Active production, 8-SOIC.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"STMicroelectronics","PSRR":"75dB (120Hz)","Series":"-","Package":"Tape & Reel (TR) Cut Tape (CT)","Output Type":"Fixed","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":"LM2931","Protection Features":"Current Limit, Thermal Shutdown","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C (TJ)","Voltage - Input (Max)":"26V","Voltage Dropout (Max)":"0.6V @ 100mA","Current - Supply (Max)":"30 mA","Voltage - Output (Max)":"-","Supplier Device Package":"8-SOIC","Current - Quiescent (Iq)":"1 mA","Voltage - Output (Min/Fixed)":"5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.2900","priceTiers":[{"qty":1,"price":"$1.35000","currency":"USD"},{"qty":10,"price":"$1.20700","currency":"USD"},{"qty":25,"price":"$1.14560","currency":"USD"},{"qty":100,"price":"$0.94110","currency":"USD"},{"qty":250,"price":"$0.87968","currency":"USD"},{"qty":500,"price":"$0.77740","currency":"USD"},{"qty":1000,"price":"$0.67550","currency":"USD"},{"qty":2500,"price":"$0.67550","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/d36d329ebe07b2117d1cff0e49ac76c9.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM2931AD50R/alternatives.json"},"ai":{"faq":[{"question":"What package does LM2931AD50R come in?","answer":"It comes in an 8-SOIC surface-mount package (0.154\", 3.90 mm width), supplied in Tape & Reel or Cut Tape."},{"question":"What are the protection features of LM2931AD50R?","answer":"Current limit and thermal shutdown are built in."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/LM2931AD50R","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/LM2931AD50R 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}}