{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM2931M-5.0/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM2931M-5.0-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM2931M-5.0-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM2931M-5.0%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM2931M-5.0/NOPB, 5V fixed-output LDO regulator, 100 mA output, 0.3 V dropout at 100 mA, 55 dB PSRR at 120 Hz, SOIC-8, -40°C to 85°C.","salesMarkdown":"No need to stockpile or hunt for a second source yet. ## 100 mA fixed 5 V rail — dropout and PSRR matter This is a single-output, positive fixed 5 V LDO rated for 100 mA continuous. The 0.3 V dropout at full load means you need at least 5.3 V on the input to hold regulation — fine for a 6 V or 9 V battery rail, but tight off a 5 V switcher post-filter. PSRR is 55 dB at 120 Hz — that is decent for an LDO of this vintage and enough to clean up 100/120 Hz ripple from a rectified mains supply feeding an analog front-end or a sensor bias rail. ## Protection that saves a field swap Built-in over-temperature shutdown, reverse polarity protection, and short-circuit current limiting. Reverse polarity is the one that earns its keep in a field repair — a swapped battery lead or a mis-wired harness won't kill the regulator or the downstream load.","metaTitle":"LM2931M-5.0/NOPB 5V Fixed LDO, 100 mA, 0.3 V Dropout, Active","metaDescription":"Texas Instruments LM2931M-5.0/NOPB 5V fixed-output LDO, 100 mA, 0.3 V dropout at full load, 55 dB PSRR at 120 Hz. Active production, SOIC-8.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","PSRR":"55dB (120Hz)","Series":"-","Package":"Tube","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":"Over Temperature, Reverse Polarity, Short Circuit","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C~85°C","Voltage - Input (Max)":"26V","Voltage Dropout (Max)":"0.3V @ 100mA","Current - Supply (Max)":"15 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":"$1.1600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/bc5f9d253d87c0f5bb975d3751d9071d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM2931M-5.0%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"Is the LM2931M-5.0/NOPB a direct replacement for the LM2931M-5.0 (non-NOPB)?","answer":"The NOPB suffix indicates RoHS-compliant, lead-free construction. Electrically and pin-for-pin it is the same regulator — the non-NOPB version was tin/lead. If your assembly line is RoHS-mandated, the NOPB is the drop-in; if you need the older solder finish for a legacy reflow profile, source the non-NOPB variant."},{"question":"What protection features does the LM2931M-5.0/NOPB include?","answer":"The reverse polarity block is the standout — it lets the regulator survive a reversed input without external diode clamping, which simplifies the BOM for battery-powered or field-wired equipment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM2931M-5.0-NOPB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM2931M-5.0-NOPB 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}}