{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM1117SX-ADJ","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM1117SX-ADJ","canonicalUrl":"https://icboms.com/texas-instruments/LM1117SX-ADJ","factsUrl":"https://icboms.com/api/mcp/products/LM1117SX-ADJ","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM1117SX-ADJ adjustable positive LDO regulator, 800 mA output, 1.25 V to 13.8 V output range, 1.2 V dropout at full load, 75 dB PSRR at 120 Hz, TO-263-3 (DDPAK) surface-mount package.","salesMarkdown":"## Adjustable LDO in TO-263-3 — 800 mA rail for post-regulation The LM1117SX-ADJ: It delivers up to 800 mA with a maximum dropout of 1.2 V at full load, making it a fit for post-regulated rails where the input-to-output headroom is at least 1.2 V under worst-case temperature. PSRR is specified at 75 dB at 120 Hz, which is the full-wave-rectified line frequency. That level of rejection cleans up the bulk-capacitor ripple before it reaches an analog or mixed-signal load — useful when this regulator feeds the supply pin of an op-amp or ADC reference buffer. ## Output voltage range and protection Input voltage can go up to 15 V. On-chip protection includes over-current and over-temperature shutdown, so the regulator survives a sustained short on the output without immediate failure. No official successor or direct replacement is listed on the record.","metaTitle":"LM1117SX-ADJ Adjustable LDO Regulator, 800 mA, TO-263-3","metaDescription":"Texas Instruments LM1117SX-ADJ adjustable LDO, 800 mA output, 75 dB PSRR at 120 Hz, TO-263-3 package.","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":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"TO-263-4, D²Pak (3 Leads + Tab), TO-263AA","Product Status":"Obsolete","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":"0°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":"DDPAK/TO-263-3","Current - Quiescent (Iq)":"5 mA","Voltage - Output (Min/Fixed)":"1.25V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.9300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f7a4a08ab916aa4ed597c3c1d9ab0eb4.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM1117SX-ADJ/alternatives.json"},"ai":{"faq":[{"question":"What is the output current of LM1117SX-ADJ?","answer":"The LM1117SX-ADJ is rated for 800 mA output current. Dropout voltage is 1.2 V maximum at that full load."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM1117SX-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/LM1117SX-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}}