{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"REG104FA-2.5KTTTG3","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"REG104FA-2.5KTTTG3","canonicalUrl":"https://icboms.com/texas-instruments/REG104FA-2.5KTTTG3","factsUrl":"https://icboms.com/api/mcp/products/REG104FA-2.5KTTTG3","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments REG104FA-2.5KTTTG3, LDO Voltage Regulator, Fixed 2.5V Output, 1A, 15V Input Max, 0.48V Dropout at 1A, 65dB PSRR at 120Hz, -40°C to 85°C, DDPAK/TO-263-5, Active, ROHS3 Compliant.","salesMarkdown":"## Fixed 2.5 V rail for noise-sensitive loads Enable control (active-high, referenced to the output) lets the system power-cycle the rail without a series FET. Protection features include over-current and over-temperature shutdown. Quiescent current sits at 0.7 mA typical, rising to 1.8 mA max under heavy load — reasonable for a 1 A linear part in always-on industrial or telecom equipment. ## Package and mounting Housed in a TO-263-6 / D²Pak (5 leads plus tab) surface-mount package, the REG104FA-2.5KTTTG3 is the DDPAK/TO-263-5 variant. The exposed tab is the output (VOUT) and provides the primary thermal path. For a 1 A dropout scenario, the tab should be soldered to a copper plane; the -40°C to 85°C operating range covers outdoor enclosures and factory-floor cabinets without forced airflow. ## Lifecycle and compliance No LTB window or PCN risk is flagged.","metaTitle":"REG104FA-2.5KTTTG3 LDO Regulator, 2.5V Fixed Output, 1A","metaDescription":"Texas Instruments REG104FA-2.5KTTTG3 is a 2.5V fixed-output LDO regulator rated for 1A with 65dB PSRR at 120Hz. Active, ROHS3 compliant, industrial temp range.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"PSRR":"65dB (120Hz)","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"TO-263-6, D²Pak (5 Leads + Tab), TO-263BA","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"1A","Protection Features":"Over Current, Over Temperature","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 85°C","Voltage - Input (Max)":"15V","Voltage Dropout (Max)":"0.48V @ 1A","Current - Supply (Max)":"1.8 mA","Supplier Device Package":"DDPAK/TO-263-5","Current - Quiescent (Iq)":"0.7 mA","Voltage - Output (Min/Fixed)":"2.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.03","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$7.03000","currency":"USD"},{"qty":10,"price":"$6.35200","currency":"USD"},{"qty":25,"price":"$6.05600","currency":"USD"},{"qty":50,"price":"$6.05620","currency":"USD"},{"qty":100,"price":"$5.25850","currency":"USD"},{"qty":250,"price":"$5.02216","currency":"USD"},{"qty":500,"price":"$4.57904","currency":"USD"},{"qty":1250,"price":"$4.18050","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/4494925c9c2f0a3369eb8c22f63d8d37.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is REG104FA-2.5KTTTG3 a drop-in replacement for REG104FA-2.5?","answer":"The REG104FA-2.5KTTTG3 is the Tape & Reel packaged variant of the same die. The base part number REG104FA-2.5 in a tube or tray package is functionally identical — same fixed 2.5 V output, same 1 A rating, same PSRR. Verify the package code (KTTT = DDPAK/TO-263-5) matches your board footprint and the reel quantity suits your pick-and-place setup."},{"question":"What is REG104FA-2.5KTTTG3's PSRR?","answer":"The PSRR is 65 dB at 120 Hz. That is the line-frequency rejection figure — adequate for a clean 2.5 V rail feeding analog or mixed-signal loads from a rectified supply."},{"question":"What package does REG104FA-2.5KTTTG3 come in?","answer":"It ships in Tape & Reel (TR) or Cut Tape (CT) format. The device package is TO-263-6 / D²Pak (5 leads plus tab), also designated DDPAK/TO-263-5. The exposed tab is the output and must be soldered for thermal management at 1 A."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/REG104FA-2.5KTTTG3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/REG104FA-2.5KTTTG3 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}