{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MCP1725T-1802E/SN","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"MCP1725T-1802E-SN","canonicalUrl":"https://icboms.com/microchip/MCP1725T-1802E-SN","factsUrl":"https://icboms.com/api/mcp/products/MCP1725T-1802E%2FSN","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology MCP1725T-1802E/SN linear regulator, 1.8V fixed output, 500mA, 0.35V dropout, 60dB PSRR, -40 to 125°C, 8-SOIC surface mount.","salesMarkdown":"## Headline ratings and the fit decision The MCP1725T-1802E/SN is a single-output positive LDO regulator delivering a fixed 1.8V output at up to 500 mA continuous. Operating temperature spans -40°C to 125°C (industrial grade), suiting it for automotive cabin, engine-bay-adjacent, or outdoor industrial control boards where ambient heat is a factor. The 220 µA quiescent current keeps standby drain low enough for always-on rail applications. ## PSRR and noise-sensitive loads Power supply rejection ratio is 60 dB at 100 Hz — this attenuates 100/120 Hz ripple from a rectified line-frequency supply by a factor of 1000. For an ADC or analog front-end powered off a switching pre-regulator, the PSRR at higher frequencies (not specified here) will be lower, so the upstream filter design must account for the switching noise band. ## Protection and control features On-chip protection includes over-temperature shutdown, short-circuit current limiting, and under-voltage lockout (UVLO) — the regulator shuts down cleanly if the input drops below the UVLO threshold, preventing the pass transistor from operating in dropout saturation. Enable and Power Good pins give sequencing control: the Enable pin lets a supervisor or MCU gate the output rail, and Power Good asserts when the output is within regulation. ## 8-SOIC package and board integration The 500 mA output at 125°C ambient requires adequate copper pour on the PCB for heat spreading; the junction-to-ambient thermal resistance of the SOIC-8 is around 160°C/W without airflow, so the power dissipation (Vin - Vout) × Iout must be derated accordingly. ## Compliance and documentation ROHS3 Compliant per Microchip's listing — the part meets the latest EU RoHS exemption-free standard.","metaTitle":"MCP1725T-1802E/SN LDO Regulator 1.8V 500mA 8-SOIC","metaDescription":"Active Microchip MCP1725T-1802E/SN LDO, 1.8V fixed output, 500mA, 0.35V dropout, 60dB PSRR, -40 to 125°C, 8-SOIC. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"PSRR":"60dB (100Hz)","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Control Features":"Enable, Power Good","Current - Output":"500mA","Protection Features":"Over Temperature, Short Circuit, Under Voltage Lockout (UVLO)","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C","Voltage - Input (Max)":"6V","Voltage Dropout (Max)":"0.35V @ 500mA","Supplier Device Package":"8-SOIC","Current - Quiescent (Iq)":"220 µA","Voltage - Output (Min/Fixed)":"1.8V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.73","priceTiers":[{"qty":1,"price":"$0.73000","currency":"USD"},{"qty":25,"price":"$0.67520","currency":"USD"},{"qty":3300,"price":"$0.67500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/2a3bacc027b196cf5b49dc7a9e590113.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MCP1725T-1802E%2FSN/alternatives.json"},"ai":{"faq":[{"question":"What is MCP1725T-1802E/SN's PSRR rating?","answer":"The power supply rejection ratio is 60 dB at 100 Hz."},{"question":"What package does MCP1725T-1802E/SN come in?","answer":"The 8-SOIC package (0.154\" body width, 3.90 mm) — standard SOIC-8 footprint."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/MCP1725T-1802E-SN","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/MCP1725T-1802E-SN 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}}