{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM2675N-12/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM2675N-12-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM2675N-12-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM2675N-12%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments SIMPLE SWITCHER® buck regulator, LM2675N-12/NOPB, step-down topology, fixed 12V output, 1A, 40V input max, 260kHz, 8-DIP through-hole, tube.","salesMarkdown":"## Active production — no last-time-buy scramble needed The LM2675N-12/NOPB: ROHS3 compliant, so it passes EU and global regulatory gates without a waiver. ## 1 A, 40 V input, fixed 12 V — the parametric envelope Rated for 1 A continuous output with a maximum input voltage of 40 V and a minimum input of 6.5 V. The output is fixed at 12 V — no external divider network needed, which saves two resistors and a feedback node on the PCB. Switching frequency is 260 kHz — a middle-of-the-road choice that keeps the inductor physically small without pushing into the EMI headaches of a 1 MHz+ switcher. The 260 kHz fundamental and its harmonics fall below most conducted-emission test start points (150 kHz), so the input filter design is straightforward. No synchronous rectifier — the freewheeling diode is external. That means slightly higher conduction loss at heavy load compared to a synchronous part, but it also means the regulator cannot shoot through and the BOM diode can be selected for the actual voltage and thermal profile. ## 8-DIP through-hole — legacy board fit and rework simplicity This is the classic DIP footprint — 0.100-inch pitch, 0.300-inch row spacing. No reflow oven needed; hand-solder or wave-solder in a single pass. The through-hole package means the part survives board rework cycles that would crack a QFN or BGA solder joint. For a repair bench or a low-volume production line, this is a practical advantage over surface-mount alternatives. The 125°C junction limit is the absolute ceiling for the silicon — derate the output current above 85°C ambient per the datasheet's thermal derating curve (not reproduced here). In a 50°C ambient with still air, the 1 A rating is achievable; in a 105°C ambient, expect to drop to roughly 0.6 A. ## SIMPLE SWITCHER series — mature ecosystem, known design flow Part of the SIMPLE SWITCHER family, a long-running Texas Instruments series of integrated switching regulators with a standardized design methodology. The datasheet includes a nomograph for inductor selection, a layout example, and a bill of materials for a typical 12 V output application. The series is well-documented across application notes (AN-1137, AN-1197) and the WEBENCH design tool supports it — enter the input range and output voltage, and the tool returns a component list and efficiency curve.","metaTitle":"Texas Instruments LM2675N-12/NOPB Buck Regulator, 1A","metaDescription":"Active SIMPLE SWITCHER buck regulator, 1A output, 40V input max, fixed 12V, 260kHz, -40°C to 125°C, 8-DIP through-hole. ROHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":"SIMPLE SWITCHER®","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Series":"SIMPLE SWITCHER®","Package":"Tube","Function":"Step-Down","Topology":"Buck","Output Type":"Fixed","Mounting Type":"Through Hole","Package / Case":"8-DIP (0.300\\\", 7.62mm)","lifecycle_stage":"eol_hot","Current - Output":"1A","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","Supplier Device Package":"8-PDIP","Voltage - Output (Min/Fixed)":"12V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.42","priceTiers":[{"qty":1,"price":"$5.42000","currency":"USD"},{"qty":10,"price":"$4.86500","currency":"USD"},{"qty":25,"price":"$4.59960","currency":"USD"},{"qty":100,"price":"$3.98630","currency":"USD"},{"qty":250,"price":"$3.78184","currency":"USD"},{"qty":500,"price":"$3.39344","currency":"USD"},{"qty":1000,"price":"$2.86194","currency":"USD"},{"qty":2500,"price":"$2.71884","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/9737fd3f26e2a02a17675ffd43a31ff4.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM2675N-12%2FNOPB/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM2675N-12-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/LM2675N-12-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}}