{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM1117IMP-ADJ","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM1117IMP-ADJ","canonicalUrl":"https://icboms.com/texas-instruments/LM1117IMP-ADJ","factsUrl":"https://icboms.com/api/mcp/products/LM1117IMP-ADJ","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM1117IMP-ADJ, adjustable positive LDO regulator, 800 mA output, 1.2 V dropout max, 75 dB PSRR at 120 Hz, SOT-223-4 surface-mount package, -40°C to 125°C operating range.","salesMarkdown":"The LM1117IMP-ADJ is a single-output adjustable positive LDO regulator from Texas Instruments, delivering up to 800 mA with a maximum dropout of 1.2 V at full load. ## Dropout voltage and load regulation With a 1.2 V dropout maximum at 800 mA, the input-to-output headroom requirement is tight — a 5 V rail can regulate down to 3.8 V cleanly, but below that the output drops out of regulation. Quiescent current is 5 mA typical, rising to 10 mA max under load. ## Industrial temperature grade and protection Built-in over-current and over-temperature protection shut down the regulator before the die exceeds safe limits. For new designs, consider the active LM1117IMPX-ADJ — the same die in the same SOT-223-4 package, differing only in the tape-and-reel suffix (the IMP-ADJ is Cut Tape; the IMPX-ADJ is Tape & Reel only).","metaTitle":"LM1117IMP-ADJ Adjustable LDO Regulator, 800 mA, SOT-223-4","metaDescription":"LM1117IMP-ADJ adjustable LDO, 800 mA output, 1.2 V dropout, 75 dB PSRR at 120 Hz. Industrial temp -40°C to 125°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","PSRR":"75dB (120Hz)","Series":"-","Packaging":"Tape & Reel (TR) Cut Tape (CT)","Output Type":"Adjustable","Part Status":"Obsolete","Mounting Type":"Surface Mount","Package / Case":"TO-261-4, TO-261AA","lifecycle_stage":"eol_hot","Control Features":"-","Current - Output":"800mA","Base Product Number":"LM1117","Protection Features":"Over Current, Over Temperature","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C","Voltage - Input (Max)":"15V","Voltage Dropout (Max)":"1.2V @ 800mA","Current - Supply (Max)":"10 mA","Voltage - Output (Max)":"13.8V","Supplier Device Package":"SOT-223-4","Current - Quiescent (Iq)":"5 mA","Voltage - Output (Min/Fixed)":"1.25V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6100","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ab43e946aa7bf5fa62b45907f93a0827.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM1117IMP-ADJ/alternatives.json"},"ai":{"faq":[{"question":"What is the best replacement for LM1117IMP-ADJ?","answer":"The closest pin-compatible active alternative is the LM1117IMPX-ADJ. It shares the same SOT-223-4 package, adjustable output, 800 mA rating, and 75 dB PSRR. The only difference is packaging: the IMP-ADJ is offered in Cut Tape, while the IMPX-ADJ is Tape & Reel only."},{"question":"What is LM1117IMP-ADJ's PSRR?","answer":"The LM1117IMP-ADJ provides 75 dB of power supply rejection ratio at 120 Hz, which attenuates 120 Hz ripple from full-wave rectifiers by a factor of over 5600."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM1117IMP-ADJ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM1117IMP-ADJ when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}