{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM1117IDTX-ADJ/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM1117IDTX-ADJ-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM1117IDTX-ADJ-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM1117IDTX-ADJ%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM1117 series, Positive Adjustable LDO Regulator, 1 Output, 800mA, TO-252-3, DPak (2 Leads + Tab), SC-63, Surface Mount, -40°C~125°C.","salesMarkdown":"## 800 mA adjustable LDO — dropout budget and thermal land The LM1117IDTX-ADJ/NOPB: Maximum dropout is 1.2 V at 800 mA load. The TO-252-3 (DPak) surface-mount package has an exposed tab on the bottom — that tab is the thermal path. ## PSRR and protection — ripple rejection and fault tolerance PSRR is 75 dB at 120 Hz. Built-in over-current and over-temperature protection let the part survive a sustained short on the output or a high ambient temperature without destructive failure. The thermal shutdown threshold is above the 125°C operating max, so the protection acts as a safety net rather than a normal operating limit. The base product number LM1117 covers multiple fixed-voltage siblings, but this adjustable variant is the one to stock if your BOM needs to cover several output voltages from a single qualified LDO.","metaTitle":"Texas Instruments LM1117IDTX-ADJ/NOPB Adjustable LDO, 800 mA","metaDescription":"Texas Instruments LM1117IDTX-ADJ/NOPB adjustable positive LDO regulator, 800 mA output, 1.25 V to 13.8 V range, 75 dB PSRR at 120 Hz, -40°C to 125°C, TO-252-3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","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-252-3, DPak (2 Leads + Tab), SC-63","Product Status":"Active","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":"TO-252-3","Current - Quiescent (Iq)":"5 mA","Voltage - Output (Min/Fixed)":"1.25V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.4800","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM1117IDTX-ADJ%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"What output voltages can LM1117IDTX-ADJ/NOPB produce?","answer":"The output is adjustable from a minimum of 1.25 V up to a maximum of 13.8 V, set by two external feedback resistors."},{"question":"Can LM1117IDTX-ADJ/NOPB handle 800 mA continuous?","answer":"Yes, the rated output current is 800 mA. At that load the maximum dropout voltage is 1.2 V, so the input must be at least 1.2 V above the target output. Thermal management through the TO-252-3 tab is required to stay within the 125°C operating limit."},{"question":"Does LM1117IDTX-ADJ/NOPB work with a 5 V input?","answer":"Yes, as long as the output voltage is at least 1.2 V below the input. For a 3.3 V output, a 5 V input provides 1.7 V headroom, which exceeds the 1.2 V maximum dropout. For a 5 V output, the input must be at least 6.2 V."},{"question":"What is the PSRR of LM1117IDTX-ADJ/NOPB?","answer":"PSRR is specified at 75 dB at 120 Hz. This means the output attenuates 120 Hz input ripple by a factor of about 5600, which is useful for post-rectifier rails feeding sensitive analog or RF stages."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM1117IDTX-ADJ-NOPB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM1117IDTX-ADJ-NOPB 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}}