{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"L7912CD2T-TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"L7912CD2T-TR","canonicalUrl":"https://icboms.com/stmicroelectronics/L7912CD2T-TR","factsUrl":"https://icboms.com/api/mcp/products/L7912CD2T-TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics L7912CD2T-TR, negative fixed linear regulator, -12 V output, 1.5 A, D2PAK (TO-263-3) surface-mount package, 60 dB PSRR at 120 Hz.","salesMarkdown":"## Fixed -12 V rail for analog and mixed-signal loads The L7912CD2T-TR delivers a fixed -12 V output at up to 1.5 A — the negative rail that powers op-amps, ADCs, DACs, or bipolar logic in industrial and instrumentation designs. The 1.1 V typical dropout at 1 A means the input can sit as low as -13.1 V and still hold regulation, which relaxes the pre-regulator tolerance. ## Ripple rejection and thermal budget PSRR is 60 dB at 120 Hz — that is the line-frequency rejection a negative rail needs to keep 60/100 Hz ripple off sensitive analog supplies. The 3 mA quiescent current is a fixed overhead; at 1.5 A load the efficiency is dominated by the dropout voltage, not Iq. The D2PAK (TO-263-3) tab is the primary heat path. Protection includes over-temperature shutdown and short-circuit current limiting. STMicroelectronics lists the L7912CD2T-TR as Active. ## Package and footprint — D2PAK reflow checklist The D2PAK (TO-263-3) footprint matches the industry-standard TO-263AB land pattern. The tab is electrically connected to the output pin; verify isolation in the PCB layout if the heatsink plane is shared with other nets.","metaTitle":"L7912CD2T-TR -12V Fixed 1.5A Negative Linear Regulator D2PAK","metaDescription":"STMicroelectronics L7912CD2T-TR: fixed -12V output, 1.5A, 60dB PSRR, D2PAK surface mount. Active production, ROHS3 compliant. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"STMicroelectronics","PSRR":"60dB (120Hz)","Series":"-","Package":"Tape & Reel (TR) Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"TO-263-3, D²Pak (2 Leads + Tab), TO-263AB","Product Status":"Active","lifecycle_stage":"eol_hot","Control Features":"-","Current - Output":"1.5A","Base Product Number":"L7912","Protection Features":"Over Temperature, Short Circuit","Number of Regulators":"1","Output Configuration":"Negative","Operating Temperature":"0°C ~ 125°C","Voltage - Input (Max)":"-35V","Voltage Dropout (Max)":"1.1V @ 1A (Typ)","Voltage - Output (Max)":"-","Supplier Device Package":"D2PAK","Current - Quiescent (Iq)":"3 mA","Voltage - Output (Min/Fixed)":"-12V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.1500","priceTiers":[{"qty":1,"price":"$1.21000","currency":"USD"},{"qty":10,"price":"$1.08300","currency":"USD"},{"qty":25,"price":"$1.02840","currency":"USD"},{"qty":100,"price":"$0.84460","currency":"USD"},{"qty":250,"price":"$0.78956","currency":"USD"},{"qty":500,"price":"$0.69776","currency":"USD"},{"qty":1000,"price":"$0.60629","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/07e07f85c3a1344b8cbb4fd3144ef9b5.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/L7912CD2T-TR/alternatives.json"},"ai":{"faq":[{"question":"What package does the L7912CD2T-TR come in?","answer":"Surface-mount D2PAK (TO-263-3, also called TO-263AB)."},{"question":"What are the protection features of the L7912CD2T-TR?","answer":"Over-temperature shutdown and short-circuit current limiting are built in. No reverse-voltage or reverse-current protection — external diodes are needed if the output is back-driven."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/L7912CD2T-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/L7912CD2T-TR 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}}