{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LP3961ESX-2.5","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LP3961ESX-2.5","canonicalUrl":"https://icboms.com/texas-instruments/LP3961ESX-2.5","factsUrl":"https://icboms.com/api/mcp/products/LP3961ESX-2.5","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LP3961ESX-2.5, fixed positive LDO regulator, 800 mA output, 0.35 V dropout max, enable control, over-current/over-temperature/short-circuit protection, -40°C to 125°C, DDPAK/TO-263-5, Bulk.","salesMarkdown":"## Fixed 2.5 V LDO for industrial rails The Texas Instruments LP3961ESX-2.5 is a fixed positive LDO regulator delivering 800 mA at 2.5 V. It comes in a DDPAK/TO-263-5 surface-mount package with a tab for heat sinking. The enable pin lets you sequence the rail; protection features cover over-current, over-temperature, and short-circuit events. ## Quiescent and supply current budget Quiescent current is 9 mA typical; maximum supply current is 15 mA. ## Package and mounting — DDPAK/TO-263-5 The DDPAK/TO-263-5 package has five leads plus a large tab. The tab is the output (VOUT) and the primary thermal path. Solder the tab to a copper plane on the PCB; for 800 mA continuous at high ambient, a 1 in² pad is a reasonable starting point. If your pick-and-place line expects embossed tape, factor in a tube-to-tape transfer or order a taped variant.","metaTitle":"LP3961ESX-2.5 LDO Regulator, Fixed 2.5V, 800mA, TO-263-5","metaDescription":"LP3961ESX-2.5 fixed positive LDO regulator, 800 mA output, 0.35V dropout max, -40°C to 125°C. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Package":"Bulk","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":"800mA","Protection Features":"Over Current, Over Temperature, Short Circuit","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C","Voltage - Input (Max)":"7V","Voltage Dropout (Max)":"0.35V @ 800mA","Current - Supply (Max)":"15 mA","Supplier Device Package":"DDPAK/TO-263-5","Current - Quiescent (Iq)":"9 mA","Voltage - Output (Min/Fixed)":"2.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7","stockQuantity":0,"priceTiers":[{"qty":431,"price":"$0.70000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/4ab265ab4b37f4cc5e96329580eb4ecb.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does LP3961ESX-2.5 have a fixed output voltage of 2.5V?","answer":"Yes, the output is fixed at 2.5 V. No external resistor divider is needed."},{"question":"What is a direct replacement for LP3961ESX-2.5?","answer":"No official direct replacement is listed in the available records. For a pin-compatible alternative within the same family, check the LP3961 adjustable version (LP3961ES-ADJ) or other fixed-voltage variants in the DDPAK/TO-263-5 package, but verify pinout and enable polarity before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LP3961ESX-2.5","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LP3961ESX-2.5 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}}