{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM2931AZ50R","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"LM2931AZ50R","canonicalUrl":"https://icboms.com/stmicroelectronics/LM2931AZ50R","factsUrl":"https://icboms.com/api/mcp/products/LM2931AZ50R","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics LM2931AZ50R, fixed 5V positive LDO, 100 mA output, 0.6 V dropout max at full load, 75 dB PSRR at 120 Hz, TO-92-3 through-hole, -40°C to 125°C junction temperature.","salesMarkdown":"The LM2931AZ50R is a fixed 5V output, 100 mA low-dropout linear regulator from STMicroelectronics. Maximum dropout is 0.6 V at 100 mA output, so the input rail needs at least 5.6 V to hold regulation at full load. Below that headroom the output starts to drop out — budget the margin in the front-end supply design. ## Dropout and quiescent current at the load corner The 1 mA Iq is modest for a 100 mA LDO; it does not dominate the efficiency budget in always-on loads, but it is not a micropower part either. Protection features include current limit and thermal shutdown — no reverse-current or reverse-voltage protection is listed, so the output should not be forced above the input in a dual-supply scenario. ## Active production, through-hole package Lifecycle status is Active. ROHS3 compliant. Packaged in TO-92-3 with formed leads (TO-226AA) — a through-hole footprint that mates with 0.100-inch pitch breadboard or PCB holes.","metaTitle":"LM2931AZ50R – STMicro 5V 100mA LDO, TO-92-3, Active","metaDescription":"STMicroelectronics LM2931AZ50R: fixed 5V output, 100mA LDO, 0.6V dropout max, 75dB PSRR at 120Hz, -40°C to 125°C junction, TO-92-3 through-hole.","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":"Through Hole","Package / Case":"TO-226-3, TO-92-3 (TO-226AA) Formed Leads","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":"TO-92-3","Current - Quiescent (Iq)":"1 mA","Voltage - Output (Min/Fixed)":"5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.1100","priceTiers":[{"qty":1,"price":"$1.16000","currency":"USD"},{"qty":10,"price":"$1.04000","currency":"USD"},{"qty":25,"price":"$0.98760","currency":"USD"},{"qty":100,"price":"$0.81110","currency":"USD"},{"qty":250,"price":"$0.75824","currency":"USD"},{"qty":500,"price":"$0.67006","currency":"USD"},{"qty":1000,"price":"$0.58222","currency":"USD"},{"qty":2000,"price":"$0.58223","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/d36d329ebe07b2117d1cff0e49ac76c9.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM2931AZ50R/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/LM2931AZ50R","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/LM2931AZ50R 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}}