{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LP2992IM5X-1.8","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LP2992IM5X-1.8","canonicalUrl":"https://icboms.com/texas-instruments/LP2992IM5X-1.8","factsUrl":"https://icboms.com/api/mcp/products/LP2992IM5X-1.8","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LP2992 series LDO voltage regulator, fixed 1.8V positive output, 250mA, SOT-23-5 (SC-74A) surface-mount package, 45dB PSRR at 1kHz.","salesMarkdown":"## Fixed 1.8V rail with 250mA headroom The LP2992IM5X-1.8 is a single-output positive LDO regulator delivering a fixed 1.8V output at up to 250mA continuous. The 16V maximum input covers 12V and 5V intermediate rails with derating margin, and the 0.85V dropout at full load means the input must stay above 2.65V to maintain regulation. Quiescent current sits at 95 µA typical, rising to 4 mA max under supply — the idle draw is low enough for battery-backed rails that stay alive during system sleep. The enable pin lets a supervisor or GPIO sequence the rail on and off without an external load switch. PSRR is 45 dB at 1 kHz — this attenuates switching ripple from a buck converter by a factor of ~178. For a 50 mVpp ripple at 1 kHz on the input, the output sees roughly 0.28 mVpp, which keeps noise-sensitive analog or RF loads within their supply rejection budget. These are self-recovering — the part cycles back on once the fault clears — so a momentary output short during board assembly or a stalled downstream load won't latch the rail off permanently. At the hot end, dropout voltage and quiescent current both increase; the 125°C junction limit is the hard ceiling, not a derating target. ## SOT-23-5 footprint and reflow profile Packaged in a 5-pin SOT-23 (SC-74A), the LP2992IM5X-1.8 uses a standard 0.95 mm pitch leadframe with no exposed pad. The footprint matches the JEDEC MO-178 variation, and the part reflows on a standard Pb-free profile with a 260°C peak — no special bake or dry-pack handling needed for MSL-1 rated devices. For a pick-and-place line, this requires a tube feeder or a manual changeover — factor the handling into the assembly plan if the rest of the BOM runs on reel. The part is marked RoHS non-compliant. For EU or RoHS-restricted markets, verify the exemption or plan for a drop-in compliant variant.","metaTitle":"Texas Instruments LP2992IM5X-1.8 LDO Regulator, 1.8V Fixed","metaDescription":"Texas Instruments LP2992IM5X-1.8 LDO, fixed 1.8V output, 250mA, 45dB PSRR at 1kHz, SOT-23-5, -40°C to 125°C. Active production, quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"PSRR":"45dB (1kHz)","Package":"Bulk","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"SC-74A, SOT-753","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"250mA","Protection Features":"Over Current, Over Temperature, Short Circuit","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C","Voltage - Input (Max)":"16V","Voltage Dropout (Max)":"0.85V @ 250mA","Current - Supply (Max)":"4 mA","Supplier Device Package":"SOT-23-5","Current - Quiescent (Iq)":"95 µA","Voltage - Output (Min/Fixed)":"1.8V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.25","stockQuantity":0,"priceTiers":[{"qty":1202,"price":"$0.25000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a364dffc493133041ee0cd746565f374.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the PSRR of the LP2992IM5X-1.8 at 1 kHz?","answer":"PSRR is 45 dB at 1 kHz. This attenuates 1 kHz ripple by roughly 178× — a 50 mVpp input ripple becomes about 0.28 mVpp at the output."},{"question":"What package does the LP2992IM5X-1.8 come in?","answer":"The LP2992IM5X-1.8 is packaged in a 5-pin SOT-23 (SC-74A) surface-mount package with a 0.95 mm pitch. The supplier device package is SOT-23-5."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LP2992IM5X-1.8","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LP2992IM5X-1.8 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}}