{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LP2950CDT-3.3/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LP2950CDT-3.3-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LP2950CDT-3.3-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LP2950CDT-3.3%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LP2950CDT-3.3/NOPB, positive fixed LDO regulator, 3.3V output, 100mA output current, 0.6V max dropout at 100mA, 30V max input, -40°C to 125°C, TO-252-3 (DPak) surface-mount package.","salesMarkdown":"## Fixed 3.3 V rail for medium-current loads The Texas Instruments LP2950CDT-3.3/NOPB is a positive fixed-output LDO regulator delivering 3.3 V at up to 100 mA. It is built for applications where a clean, regulated 3.3 V rail is needed from an unregulated or higher-voltage supply — think microcontroller power, sensor bias, or auxiliary rails in industrial and automotive systems. The input can go as high as 30 V, which gives you headroom for 12 V or 24 V buses, battery stacks, or lightly regulated intermediate rails without needing a pre-regulator. Maximum dropout voltage is 0.6 V at 100 mA load. That means the input must stay at least 0.6 V above 3.3 V (so 3.9 V minimum) to maintain regulation at full current. If your rail sags below that, the output follows it down — a common failure signature when the upstream supply is marginal. Quiescent current is 120 µA typical. For always-on circuits or battery-backed rails, that 120 µA is the standing draw before any load current — low enough to keep a coin cell from draining overnight, but not as aggressive as the ultra-low-Iq LDOs aimed at energy-harvesting designs. ## Protection and temperature range Built-in over-current and over-temperature protection mean the part folds back or shuts down before it lets the magic smoke out. On a repair bench, that often saves the regulator itself — the scorch mark ends up on the load side, not the LDO. Housed in a TO-252-3 (DPak) surface-mount package with a metal tab on the drain/output pin. In a 100 mA application the dissipation is low (under 0.3 W at 3 V drop), so a modest pad is usually enough.","metaTitle":"LP2950CDT-3.3/NOPB LDO Regulator, 3.3V Fixed, 100mA","metaDescription":"Texas Instruments LP2950CDT-3.3/NOPB positive fixed LDO, 3.3V output, 100mA, 0.6V dropout, -40°C to 125°C, TO-252-3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","PSRR":"-","Series":"-","Package":"Tube","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"TO-252-3, DPak (2 Leads + Tab), SC-63","Product Status":"Active","lifecycle_stage":"eol_hot","Control Features":"-","Current - Output":"100mA","Base Product Number":"LP2950","Protection Features":"Over Current, Over Temperature","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C~125°C","Voltage - Input (Max)":"30V","Voltage Dropout (Max)":"0.6V @ 100mA","Current - Supply (Max)":"14 mA","Voltage - Output (Max)":"-","Supplier Device Package":"TO-252-3","Current - Quiescent (Iq)":"120 µA","Voltage - Output (Min/Fixed)":"3.3V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.6400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/caf18a64c65ed1aae14f4e93b3409731.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LP2950CDT-3.3%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"LP2950CDT-3.3/NOPB vs LP2950CDT-3.3 difference?","answer":"The /NOPB suffix indicates lead-free / RoHS-compliant plating. The LP2950CDT-3.3 (without /NOPB) is the older tin-lead version. Electrically they are identical — same fixed 3.3 V output, same dropout, same package. The /NOPB variant is the current production option for RoHS requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LP2950CDT-3.3-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/LP2950CDT-3.3-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}}