{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM2671N-ADJ/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM2671N-ADJ-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM2671N-ADJ-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM2671N-ADJ%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SIMPLE SWITCHER® LM2671N-ADJ/NOPB, step-down (buck) regulator, adjustable output, 500 mA, 260 kHz, 8-DIP (0.300\", 7.62 mm) through-hole package, -40°C to 125°C junction temperature.","salesMarkdown":"## Buck regulator for 12 V / 24 V industrial rails — 500 mA, adjustable output The Texas Instruments LM2671N-ADJ/NOPB is a SIMPLE SWITCHER® step-down (buck) regulator delivering up to 500 mA from a 6.5 V to 40 V input rail. Output is adjustable from 1.21 V up to 37 V. ## 500 mA output — sizing the load budget The 500 mA continuous output is the hard ceiling for this regulator. It powers a handful of op-amps, a small FPGA core rail, or a relay coil supply — but not a multi-amp load. ## Through-hole 8-DIP — legacy fit and rework The 8-pin DIP (0.300\" width, 7.62 mm pitch) is a through-hole package. It plugs into a standard DIP socket or solders directly into plated through-holes. This is the package for bench prototypes, low-volume production, and rework of older boards where an SMD regulator would require a layout change. ## Junction temperature range -40°C to 125°C Rated for junction temperatures from -40°C to 125°C, this part is specified for industrial and automotive environments — outdoor telecom cabinets, engine-bay auxiliary supplies, and factory-floor control panels. The -40°C low end covers cold-start conditions; the 125°C upper limit requires careful thermal design (heatsink or airflow) when running near full load at high ambient. ## Active, RoHS3, no synchronous rectifier It does not use synchronous rectification, so the external Schottky diode is required — factor that into the BOM count and board area. The non-synchronous topology is simpler and cheaper than a synchronous FET design, but efficiency suffers at low output voltages where the diode forward drop becomes a larger fraction of the output.","metaTitle":"LM2671N-ADJ/NOPB SIMPLE SWITCHER Buck Regulator, 500 mA","metaDescription":"LM2671N-ADJ/NOPB SIMPLE SWITCHER step-down regulator, adjustable output, 500 mA, 260 kHz, 8-DIP through-hole. Active, RoHS3.","metaKeywords":null},"attributes":{"series":"SIMPLE SWITCHER®","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Series":"SIMPLE SWITCHER®","Package":"Tube","Function":"Step-Down","Topology":"Buck","Output Type":"Adjustable","Mounting Type":"Through Hole","Package / Case":"8-DIP (0.300\\\", 7.62mm)","lifecycle_stage":"eol_hot","Current - Output":"500mA","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"260kHz","Operating Temperature":"-40°C ~ 125°C (TJ)","Synchronous Rectifier":"No","Voltage - Input (Max)":"40V","Voltage - Input (Min)":"6.5V","Voltage - Output (Max)":"37V","Supplier Device Package":"8-PDIP","Voltage - Output (Min/Fixed)":"1.21V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.62","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.62000","currency":"USD"},{"qty":10,"price":"$4.15000","currency":"USD"},{"qty":25,"price":"$3.92320","currency":"USD"},{"qty":100,"price":"$3.40020","currency":"USD"},{"qty":250,"price":"$3.22584","currency":"USD"},{"qty":500,"price":"$2.89454","currency":"USD"},{"qty":1000,"price":"$2.46750","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/d9efd9ca6eb2a5d0b459a623534d7288.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can I use LM2671N-ADJ as a replacement for LM2671-ADJ?","answer":"The LM2671N-ADJ/NOPB is the through-hole (N) version with the NOPB (lead-free / RoHS) suffix. The LM2671-ADJ (without N) is the surface-mount version. They are not pin-compatible — the package differs. Check your board's footprint before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM2671N-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/LM2671N-ADJ-NOPB when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}