{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM7812S/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM7812S-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM7812S-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM7812S%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM7812S/NOPB, fixed 12 V positive linear regulator, 1.5 A output, 72 dB PSRR at 120 Hz, surface-mount TO-263-3 (D²Pak), tube packaging.","salesMarkdown":"## 12 V fixed rail, 1.5 A continuous — TO-263 D²Pak The LM7812S/NOPB is a fixed 12 V output linear regulator from the classic 78xx family, delivering up to 1.5 A continuous. The 72 dB PSRR at 120 Hz means it attenuates the 100/120 Hz ripple from a rectified mains supply by a factor of ~4000 — relevant for powering analog front-ends or sensor bias rails where clean DC matters. The 2 V max dropout at 1 A sets the minimum input headroom: the unregulated DC input must stay above 14 V at full load to keep the output in regulation. The 8 mA quiescent current is typical for a bipolar linear regulator of this output rating. ## Package and thermal budget Housed in a TO-263-3 (D²Pak) surface-mount package with an exposed tab on the bottom. A 2 oz copper plane of at least 1 in² is typical to keep the junction below 125°C at 1.5 A load. For ambient temperatures above 70°C, derate the output current or increase the copper area to stay within the junction limit. ## Protection features and supply posture On-chip protection includes over-temperature shutdown and short-circuit current limiting — the regulator survives a sustained output short without damage, though the die temperature will cycle near the thermal limit.","metaTitle":"LM7812S/NOPB TI 12V Fixed 1.5A Linear Regulator","metaDescription":"Texas Instruments LM7812S/NOPB: 12V fixed output, 1.5A max, 72dB PSRR at 120Hz, surface-mount TO-263-3 (D²Pak). Active production, ROHS3. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","PSRR":"72dB (120Hz)","Series":"-","Package":"Tube","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"TO-263-4, D²Pak (3 Leads + Tab), TO-263AA","Product Status":"Active","lifecycle_stage":"eol_hot","Control Features":"-","Current - Output":"1.5A","Base Product Number":"LM7812","Protection Features":"Over Temperature, Short Circuit","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"0°C~125°C","Voltage - Input (Max)":"35V","Voltage Dropout (Max)":"2V @ 1A","Voltage - Output (Max)":"-","Supplier Device Package":"DDPAK/TO-263-3","Current - Quiescent (Iq)":"8 mA","Voltage - Output (Min/Fixed)":"12V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.2700","priceTiers":[{"qty":1,"price":"$2.27000","currency":"USD"},{"qty":10,"price":"$2.03900","currency":"USD"},{"qty":25,"price":"$1.92400","currency":"USD"},{"qty":100,"price":"$1.63920","currency":"USD"},{"qty":250,"price":"$1.53912","currency":"USD"},{"qty":500,"price":"$1.34672","currency":"USD"},{"qty":1000,"price":"$1.11586","currency":"USD"},{"qty":2500,"price":"$1.08900","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/f3872e5e42c11c356e800e32f2654004.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM7812S%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"Is the LM7812S/NOPB surface mount?","answer":"Yes — it is a surface-mount device in a TO-263-3 (D²Pak) package with an exposed tab."},{"question":"What is the difference between LM7812 and LM7812S?","answer":"The LM7812 is the through-hole TO-220 version; the LM7812S is the surface-mount TO-263 (D²Pak) variant. Both share the same 12 V / 1.5 A / 72 dB PSRR electrical specifications. The S suffix indicates the surface-mount package — the PCB footprint and thermal pad design differ, but the electrical BOM fit is identical."},{"question":"What is the PSRR of the LM7812S/NOPB?","answer":"72 dB at 120 Hz — this is the ripple rejection from a full-wave rectified mains supply. It means the output ripple is about 1/4000 of the input ripple at that frequency."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM7812S-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/LM7812S-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}}