{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"L7805CDT-TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"L7805CDT-TR","canonicalUrl":"https://icboms.com/stmicroelectronics/L7805CDT-TR","factsUrl":"https://icboms.com/api/mcp/products/L7805CDT-TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics L7805CDT-TR, fixed 5V positive linear regulator, 1.5A output, DPAK (TO-252) surface-mount package, 62dB PSRR at 120Hz.","salesMarkdown":"The L7805CDT-TR is a fixed 5V positive linear regulator from STMicroelectronics, rated for 1.5A continuous output. The DPAK (TO-252) surface-mount package means the tab is the output node and the primary heat path — if the board layout skips the copper pour under the tab, the thermal shutdown will cycle before you reach 1.5A. PSRR is 62 dB at 120 Hz — that's the ripple rejection on the 5V rail for a full-wave-rectified input. For an analog supply feeding an op-amp or ADC reference, that 62 dB keeps 120 Hz ripple down to a few millivolts at the output. ## Dropout, quiescent, and the thermal budget Maximum dropout is 2V at 1A load, typical is lower. That means you need at least 7V on the input to hold regulation at full current — budget 8V for margin. Quiescent current is 8 mA, which is the overhead the regulator burns even with no load; on a battery-powered board that 8 mA is a standing drain. Input voltage max is 35V — don't push it past that; the absolute max is higher but the safe operating area shrinks fast above 35V. The L7805 base number has been in production for decades.","metaTitle":"L7805CDT-TR STMicroelectronics 5V 1.5A Linear Regulator DPAK","metaDescription":"Active STMicroelectronics L7805CDT-TR — 5V fixed output, 1.5A, 62dB PSRR at 120Hz, DPAK surface-mount. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"STMicroelectronics","PSRR":"62dB (120Hz)","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"TO-252-3, DPak (2 Leads + Tab), SC-63","Product Status":"Active","lifecycle_stage":"eol_hot","Control Features":"-","Current - Output":"1.5A","Base Product Number":"L7805","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 (Typ)","Voltage - Output (Max)":"-","Supplier Device Package":"DPAK","Current - Quiescent (Iq)":"8 mA","Voltage - Output (Min/Fixed)":"5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.1200","priceTiers":[{"qty":1,"price":"$1.12000","currency":"USD"},{"qty":10,"price":"$0.99900","currency":"USD"},{"qty":25,"price":"$0.94800","currency":"USD"},{"qty":100,"price":"$0.77870","currency":"USD"},{"qty":250,"price":"$0.72792","currency":"USD"},{"qty":500,"price":"$0.64328","currency":"USD"},{"qty":1000,"price":"$0.55895","currency":"USD"},{"qty":2500,"price":"$0.55895","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/1ec3c1a4c11b806c0cf815b616dfcd1d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/L7805CDT-TR/alternatives.json"},"ai":{"faq":[{"question":"Is L7805CDT-TR pin-compatible with the TO-220 L7805CV?","answer":"No — the L7805CDT-TR is in a DPAK (TO-252) surface-mount package, while the L7805CV is a TO-220 through-hole part. The pin functions (input, ground, output) are the same order, but the footprint and thermal pad are completely different. A TO-220 cannot be dropped onto a DPAK land pattern."},{"question":"Can L7805CDT-TR replace an L7805AB in a 5V rail?","answer":"Electrically, yes — both are fixed 5V positive regulators. The L7805AB typically has tighter output tolerance and lower quiescent current, but the L7805CDT-TR's 1.5A output and 62 dB PSRR cover the same load range. The package difference (DPAK vs whatever the AB comes in) is the real check — confirm the footprint matches."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/L7805CDT-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/L7805CDT-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}}