{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LD1117DT12TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"LD1117DT12TR","canonicalUrl":"https://icboms.com/stmicroelectronics/LD1117DT12TR","factsUrl":"https://icboms.com/api/mcp/products/LD1117DT12TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics LD1117DT12TR, fixed 1.2V output, 800mA low-dropout linear regulator in DPAK (TO-252-3) package, PSRR 75 dB at 120 Hz, active production.","salesMarkdown":"## Fixed 1.2V rail, 800 mA ceiling, DPAK footprint The LD1117DT12TR is a fixed-output LDO from STMicroelectronics' LD1117 series, delivering a regulated 1.2V at up to 800 mA continuous. The maximum dropout voltage is 1.2V at the full 800 mA load. PSRR is 75 dB at 120 Hz. ## Dropout headroom and PSRR for sensitive loads The 1.2V max dropout at 800 mA is the key headroom number. Quiescent current is 5 mA. ## Active production, DPAK package, ROHS3","metaTitle":"LD1117DT12TR – STMicro 1.2V 800mA LDO, DPAK, Active","metaDescription":"STMicroelectronics LD1117DT12TR: fixed 1.2V output, 800mA LDO in DPAK. PSRR 75 dB at 120 Hz, dropout 1.2V max at full load. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"STMicroelectronics","PSRR":"75dB (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":"800mA","Base Product Number":"LD1117","Protection Features":"Over Current, Over Temperature","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"0°C~125°C","Voltage - Input (Max)":"15V","Voltage Dropout (Max)":"1.2V @ 800mA","Voltage - Output (Max)":"-","Supplier Device Package":"DPAK","Current - Quiescent (Iq)":"5 mA","Voltage - Output (Min/Fixed)":"1.2V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8500","priceTiers":[{"qty":1,"price":"$0.85000","currency":"USD"},{"qty":10,"price":"$0.75000","currency":"USD"},{"qty":25,"price":"$0.70400","currency":"USD"},{"qty":100,"price":"$0.57470","currency":"USD"},{"qty":250,"price":"$0.53384","currency":"USD"},{"qty":500,"price":"$0.45432","currency":"USD"},{"qty":1000,"price":"$0.37502","currency":"USD"},{"qty":2500,"price":"$0.37502","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/494bb92f4effb270dec91ee8a399de6d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LD1117DT12TR/alternatives.json"},"ai":{"faq":[{"question":"What is the PSRR of the LD1117DT12TR?","answer":"PSRR is 75 dB at 120 Hz. This is the ripple rejection at the fundamental of a full-wave rectified mains supply. For higher-frequency ripple from a switching regulator, PSRR rolls off — the datasheet plot shows the curve, but the 120 Hz number is the headline for line-frequency filtering."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/LD1117DT12TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/LD1117DT12TR 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}}