{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LP3964EMPX-2.5","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LP3964EMPX-2.5","canonicalUrl":"https://icboms.com/texas-instruments/LP3964EMPX-2.5","factsUrl":"https://icboms.com/api/mcp/products/LP3964EMPX-2.5","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LP3964EMPX-2.5 LDO regulator, fixed 2.5V output, 800mA, SOT-223-5, Bulk.","salesMarkdown":"## Thermal and protection — 125 °C junction, built-in safeguards The LP3964EMPX-2.5: The 9 mA quiescent current is typical for a 800 mA LDO of this generation — not a micropower part, but the trade-off is fast transient response on the 2.5 V rail. On-chip protection includes overcurrent limiting, overtemperature shutdown, and short-circuit current foldback. These prevent the regulator from damaging itself or the load when a downstream fault pulls the output low — the part recovers once the fault clears and the junction cools. ## Package and enable — SOT-223-5 with logic-level shutdown Housed in the SOT-223-5 (TO-261-5) surface-mount package, the LP3964EMPX-2.5 has an exposed thermal pad on the tab. The Enable pin (active high) lets a logic signal sequence the 2.5 V rail on after the input supply is stable. Pulled low, the regulator enters shutdown and drops the quiescent current to near zero — useful for power-gating blocks that only need the rail during active operation. Confirm your BOM's environmental compliance requirements before committing the line.","metaTitle":"LP3964EMPX-2.5 Texas Instruments LDO, 800mA, 2.5V Fixed","metaDescription":"Active-production LDO from TI, 800mA output, 0.35V dropout at full load, fixed 2.5V. SOT-223-5. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Bulk","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"TO-261-5, TO-261AB","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":"SOT-223-5","Current - Quiescent (Iq)":"9 mA","Voltage - Output (Min/Fixed)":"2.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.68","stockQuantity":0,"priceTiers":[{"qty":444,"price":"$0.68000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/4ab265ab4b37f4cc5e96329580eb4ecb.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package does LP3964EMPX-2.5 use?","answer":"SOT-223-5 (also designated TO-261-5). The tab is the exposed thermal pad and is electrically connected to the output."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LP3964EMPX-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/LP3964EMPX-2.5 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}