{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LT1963AEST-2.5#TRPBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LT1963AEST-2.5TRPBF","canonicalUrl":"https://icboms.com/analog-devices/LT1963AEST-2.5TRPBF","factsUrl":"https://icboms.com/api/mcp/products/LT1963AEST-2.5%23TRPBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LT1963AEST-2.5#TRPBF, positive fixed-output LDO regulator, 2.5V, 1.5A, 0.55V dropout at 1.5A, 63dB PSRR at 120Hz, SOT-223-3 package, -40 to 125°C operating range.","salesMarkdown":"## What this LDO is and where it fits Key features include an enable pin for sequenced power-up, and built-in protection against over-current, over-temperature, and reverse polarity — which saves external clamp diodes on the input. The 63 dB PSRR at 120 Hz makes it a natural fit for post-switcher rails feeding sensitive analog or RF stages. ## Dropout and thermal — the real-world numbers The 0.55 V dropout at 1.5 A is the worst-case figure across temperature; typical dropout is lower. That 1.5 A output is the full rated current, not a peak. Quiescent current sits at 1.5 mA typical, so it's not a micropower part, but the 120 mA maximum supply current tells you the control circuitry stays alive under fault conditions. The SOT-223-3 package has a thermal pad on the tab; board copper area is your heatsink. The -40 to 125 °C junction range gives headroom, but the tab must be soldered to a sufficient plane. ## Lifecycle and sourcing It is ROHS3 compliant.","metaTitle":"LT1963AEST-2.5#TRPBF LDO Regulator, 2.5V Fixed, 1.5A","metaDescription":"Analog Devices LT1963AEST-2.5#TRPBF is a 2.5V fixed-output LDO rated for 1.5A with 63dB PSRR at 120Hz. Industrial temp range -40 to 125°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"PSRR":"63dB (120Hz)","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"TO-261-4, TO-261AA","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"1.5A","Protection Features":"Over Current, Over Temperature, Reverse Polarity","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C","Voltage - Input (Max)":"20V","Voltage Dropout (Max)":"0.55V @ 1.5A","Current - Supply (Max)":"120 mA","Supplier Device Package":"SOT-223-3","Current - Quiescent (Iq)":"1.5 mA","Voltage - Output (Min/Fixed)":"2.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.6","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.60000","currency":"USD"},{"qty":10,"price":"$5.92900","currency":"USD"},{"qty":25,"price":"$5.60480","currency":"USD"},{"qty":100,"price":"$4.85740","currency":"USD"},{"qty":250,"price":"$4.60836","currency":"USD"},{"qty":500,"price":"$4.13506","currency":"USD"},{"qty":1000,"price":"$3.52500","currency":"USD"},{"qty":2000,"price":"$3.52500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/59df79300662c461292fc8a9803aa517.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is a suitable replacement for LT1963AEST-2.5#TRPBF?","answer":"The closest functional sibling is the adjustable-output LT1963AES8#PBF (same 1.5 A, same protection set, same PSRR), but it comes in a different package (SOIC-8) and requires external resistors to set the output voltage. For a fixed 2.5 V drop-in, stick with this exact part — the adjustable version is not a pin-compatible substitute."},{"question":"What is the PSRR of LT1963AEST-2.5#TRPBF?","answer":"The listed PSRR is 63 dB at 120 Hz — typical for a fast LDO in this class. That's enough to clean up 100/120 Hz ripple from a rectified line or a switching pre-regulator for sensitive analog loads."},{"question":"Does LT1963AEST-2.5#TRPBF have any specific layout or capacitor requirements?","answer":"The datasheet (available from the manufacturer) specifies input and output capacitor types and values for stability. The part includes over-current, over-temperature, and reverse polarity protection, so external protection diodes are not required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LT1963AEST-2.5TRPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LT1963AEST-2.5TRPBF 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}}