{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"L7905C-D2TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"L7905C-D2TR","canonicalUrl":"https://icboms.com/stmicroelectronics/L7905C-D2TR","factsUrl":"https://icboms.com/api/mcp/products/L7905C-D2TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics L7905C series, L7905C-D2TR, fixed negative -5V output linear voltage regulator, 1.5A output current, D2PAK (TO-263) surface mount, PSRR 60dB at 120Hz, 0°C to 125°C operating temperature.","salesMarkdown":"## Fixed -5V negative regulator in D2PAK — now obsolete The STMicroelectronics L7905C-D2TR is a fixed -5V output, negative linear voltage regulator rated for 1.5A continuous output current in a D2PAK (TO-263) surface-mount package. PSRR is 60 dB at 120 Hz. ## 1.5A output, -35V max input, 1.4V dropout Input voltage maximum is -35 V, and typical dropout voltage is 1.4 V at 1 A load. Quiescent current is 3 mA typical, and the regulator includes over-temperature and short-circuit protection. The D2PAK (TO-263-3) package has a large exposed copper tab on the bottom — the tab is the output terminal and also the primary heat path. PCB layout must provide adequate copper area and thermal vias to keep junction temperature below 125°C at 1.5 A load. ## Sourcing a discontinued part A board-level redesign to a pin-compatible -5 V regulator from a different manufacturer may be necessary for long-term production.","metaTitle":"STMicroelectronics L7905C-D2TR -5V Fixed Linear Regulator","metaDescription":"ST L7905C-D2TR fixed -5V output, 1.5A negative linear regulator in D2PAK, PSRR 60dB at 120Hz.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"STMicroelectronics","PSRR":"60dB (120Hz)","Series":"-","Package":"Tape & Reel (TR)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"TO-263-3, D²Pak (2 Leads + Tab), TO-263AB","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":"D2PAK","Current - Quiescent (Iq)":"3 mA","Voltage - Output (Min/Fixed)":"-5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4383","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/07e07f85c3a1344b8cbb4fd3144ef9b5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is L7905C-D2TR's listed PSRR?","answer":"PSRR is 60 dB at 120 Hz, which is typical for a three-terminal linear regulator and effective at filtering full-wave rectified ripple."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/L7905C-D2TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/L7905C-D2TR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T17:33:34.458Z","lastPublished":"2026-07-16T17:33:34.458Z","indexable":true}}