{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LP2950CDT-3.0","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LP2950CDT-3.0","canonicalUrl":"https://icboms.com/texas-instruments/LP2950CDT-3.0","factsUrl":"https://icboms.com/api/mcp/products/LP2950CDT-3.0","rawCanonicalId":null},"summary":{"shortDescription":"onsemi LP2950CDT-3.0, positive fixed LDO regulator, 3.0V output, 100mA, 0.6V dropout max, 120 µA quiescent current, -40°C to 125°C, TO-252-3 (DPak) surface-mount package, over-current and over-temperature protection.","salesMarkdown":"The onsemi LP2950CDT-3.0 is a single-output, positive fixed LDO regulator delivering 3.0 V at up to 100 mA. It is built for applications where a clean, regulated 3.0 V rail is needed from a higher input — think sensor supplies, MCU analogue front-ends, or always-on standby rails in industrial and automotive gear. ## Dropout and headroom — the 0.6 V margin Maximum dropout voltage is 0.6 V at the full 100 mA load. That means the input must stay above 3.6 V to maintain regulation at full current; below that the output starts to track the input minus the dropout. For a 5 V rail feeding this LDO, there is 1.4 V of headroom — plenty. But if the input is a 3.7 V lithium cell near end-of-discharge, the margin disappears and the output droops. Budget the dropout against the worst-case input voltage in your system. ## Protection features — over-current and over-temperature Built-in over-current and over-temperature protection let the part survive a hard short or a stalled load without immediate destruction. The thermal shutdown kicks in when the junction exceeds the die temperature limit; once it cools, the regulator restarts. This is standard for industrial-grade LDOs and saves an external current-limit circuit. ## Package and thermal — TO-252-3 (DPak) The TO-252-3 (DPak) surface-mount package has a metal tab on the output pin that acts as the primary heat path. A 1-inch-square copper pour on the top layer with thermal vias to an internal plane is typical for this package class. ## Sourcing an obsolete regulator The LP2950CDT-3.0 is listed as obsolete. For BOM lines that still call out this exact code, supply is limited to surplus and broker-channel inventory — sealed reels or tube stock with date-code spreads typical of factory overruns and end-of-life buybacks.","metaTitle":"LP2950CDT-3.0 LDO Regulator, 3.0V Fixed Output, 100mA","metaDescription":"LP2950CDT-3.0 positive fixed LDO regulator, 3.0V output at 100mA, 0.6V dropout max, -40°C to 125°C, TO-252-3 package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","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","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)":"3V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.5600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/caf18a64c65ed1aae14f4e93b3409731.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LP2950CDT-3.0/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for LP2950CDT-3.0?","answer":"No official replacement or pin-compatible successor is recorded in the available documentation. For a functional equivalent, look for a 3.0 V fixed-output LDO in a TO-252-3 package with 100 mA capability and similar dropout — but confirm pinout and thermal pad compatibility against your board layout."},{"question":"Can the LP2950CDT-3.0 be used with a 5V input?","answer":"Yes, a 5 V input provides 2 V of headroom above the 3.0 V output, which is well above the 0.6 V maximum dropout at 100 mA load. The input maximum is 30 V, so 5 V is comfortably within the safe operating range."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LP2950CDT-3.0","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-3.0 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}}