{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM1085IS-ADJ/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM1085IS-ADJ-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM1085IS-ADJ-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM1085IS-ADJ%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM1085IS-ADJ/NOPB, adjustable positive LDO regulator, 3 A output, 1.5 V dropout max at 3 A, 75 dB PSRR at 120 Hz, -40°C to 125°C junction temperature, DDPAK/TO-263-3 surface-mount package.","salesMarkdown":"The Texas Instruments LM1085IS-ADJ/NOPB is a single-output adjustable positive LDO regulator rated for 3 A continuous output. It comes in a DDPAK/TO-263-3 surface-mount package. ## Dropout and headroom — what 1.5 V at 3 A means The maximum dropout voltage of 1.5 V at 3 A sets the minimum input-to-output differential needed to maintain regulation. The junction temperature, not ambient, is the binding limit — 3 A at high input-output differential generates significant self-heating, so the DDPAK tab must be soldered to a sufficient copper plane for thermal dissipation. ## Protection features Over-current and over-temperature protection are built in. The regulator folds back current during a fault and shuts down if the die exceeds the thermal limit. No external protection diode or current-limit resistor is needed for normal operation, though the output capacitor should be rated for the full input voltage in case of a short-circuit condition. The LM1085IS-ADJ/NOPB has an active lifecycle status per the manufacturer. The part is RoHS3 compliant (lead-free).","metaTitle":"LM1085IS-ADJ/NOPB Adjustable LDO Regulator, 3 A, DDPAK","metaDescription":"TI LM1085IS-ADJ/NOPB adjustable positive LDO regulator, 3 A output, 1.5 V dropout max at 3 A, 75 dB PSRR at 120 Hz, -40°C to 125°C, DDPAK/TO-263-3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"PSRR":"75dB (120Hz)","Package":"Tube","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"TO-263-4, D²Pak (3 Leads + Tab), TO-263AA","lifecycle_stage":"eol_hot","Current - Output":"3A","Protection Features":"Over Current, Over Temperature","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C (TJ)","Voltage - Input (Max)":"29V","Voltage Dropout (Max)":"1.5V @ 3A","Voltage - Output (Max)":"15V","Supplier Device Package":"DDPAK/TO-263-3","Current - Quiescent (Iq)":"10 mA","Voltage - Output (Min/Fixed)":"1.25V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.88","priceTiers":[{"qty":1,"price":"$2.88000","currency":"USD"},{"qty":10,"price":"$2.58500","currency":"USD"},{"qty":25,"price":"$2.43920","currency":"USD"},{"qty":100,"price":"$2.07820","currency":"USD"},{"qty":250,"price":"$1.95132","currency":"USD"},{"qty":500,"price":"$1.70740","currency":"USD"},{"qty":1000,"price":"$1.41471","currency":"USD"},{"qty":2500,"price":"$1.31714","currency":"USD"},{"qty":5000,"price":"$1.26836","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/1893fb6e470658eed89c4059c0c10361.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM1085IS-ADJ%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"Does LM1085IS-ADJ/NOPB have a direct equivalent or replacement?","answer":"The LMS1587IS-3.3/NOPB is a fixed 3.3 V output peer in the same package, but it is not a direct adjustable equivalent. There is no pin-compatible drop-in replacement listed — the adjustable version requires external resistors that a fixed-output part does not. For a second-source adjustable 3 A LDO, review the parametric search for comparable parts in the same package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM1085IS-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/LM1085IS-ADJ-NOPB when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}