{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"L7905ACV-DG","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"L7905ACV-DG","canonicalUrl":"https://icboms.com/stmicroelectronics/L7905ACV-DG","factsUrl":"https://icboms.com/api/mcp/products/L7905ACV-DG","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics L7905ACV-DG, fixed -5 V output, 1.5 A, TO-220-3 through-hole package, negative linear regulator with 60 dB PSRR at 120 Hz.","salesMarkdown":"## What this -5 V regulator does for your rail The L7905ACV-DG is a single-output negative linear regulator delivering a fixed -5 V at up to 1.5 A from a -35 V maximum input. Its 60 dB PSRR at 120 Hz makes it a natural choice for post-regulating a negative rail after a rectifier — the ripple rejection at line frequency is where it matters most for analog supplies. The 1.4 V typical dropout at 1 A means the input must sit at least -6.4 V to maintain regulation at that load; plan the input headroom accordingly. ## Package, temperature, and protection Housed in a TO-220-3 through-hole package, it suits point-of-load regulation on a main board or a separate heatsink — the tab is the output pin, so the heatsink carries the -5 V potential. Built-in over-temperature and short-circuit protection let the regulator survive a sustained output short without external foldback circuitry. STMicroelectronics lists the L7905ACV-DG as Obsolete. The quiescent current is 3 mA, which is modest for a 1.5 A regulator but not low enough for always-on battery applications.","metaTitle":"L7905ACV-DG – STMicro -5V 1.5A Negative LDO, TO-220","metaDescription":"L7905ACV-DG from STMicroelectronics: fixed -5 V output, 1.5 A, TO-220-3, PSRR 60 dB at 120 Hz. Obsolete status — confirm stock and lead time per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Obsolete","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"STMicroelectronics","PSRR":"60dB (120Hz)","Series":"-","Package":"Tube","Output Type":"Fixed","Mounting Type":"Through Hole","Package / Case":"TO-220-3","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Control Features":"-","Current - Output":"1.5A","Base Product Number":"L7905","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)":"1.4V @ 1A (Typ)","Voltage - Output (Max)":"-","Supplier Device Package":"TO-220","Current - Quiescent (Iq)":"3 mA","Voltage - Output (Min/Fixed)":"-5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9700","priceTiers":[{"qty":1,"price":"$1.02000","currency":"USD"},{"qty":10,"price":"$0.91400","currency":"USD"},{"qty":25,"price":"$0.86760","currency":"USD"},{"qty":100,"price":"$0.71260","currency":"USD"},{"qty":250,"price":"$0.66616","currency":"USD"},{"qty":500,"price":"$0.58870","currency":"USD"},{"qty":1000,"price":"$0.51152","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/1cec72d055257a6e2d03b4342d6041cf.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/L7905ACV-DG/alternatives.json"},"ai":{"faq":[{"question":"What is the PSRR of L7905ACV-DG?","answer":"60 dB at 120 Hz. This is the ripple rejection at line frequency — relevant when the regulator is cleaning up rectified mains ripple on a negative analog rail."},{"question":"What package does L7905ACV-DG use?","answer":"TO-220-3 through-hole. The tab is electrically connected to the output (-5 V), so the heatsink must be isolated or at -5 V potential."},{"question":"Is L7905ACV-DG compatible with L7905CV?","answer":"The base product number is L7905, and the L7905CV is a sibling in the same family. Both are fixed -5 V, 1.5 A regulators in TO-220. The 'A' suffix typically indicates a tighter output tolerance or a specific test level — confirm the exact spec difference from the respective datasheets."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/L7905ACV-DG","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/L7905ACV-DG when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T18:03:29.810Z","lastPublished":"2026-07-17T18:03:29.810Z","indexable":true}}