{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"PCA9518PWR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"PCA9518PWR","canonicalUrl":"https://icboms.com/texas-instruments/PCA9518PWR","factsUrl":"https://icboms.com/api/mcp/products/PCA9518PWR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments PCA9518PWR, I²C/SMBus buffer IC, 20-TSSOP surface-mount package, 3V to 3.6V supply, active production","salesMarkdown":"## What this I²C/SMBus buffer does on the bus The PCA9518PWR is a specialized interface buffer from Texas Instruments designed for I²C and SMBus applications. It sits between the controller and the bus segments, isolating capacitive load and allowing more devices on the same bus without violating rise-time limits. ## Supply rail and package constraints The 20-TSSOP package with 0.65 mm pitch requires a controlled impedance layout for the SDA/SCL traces; keep stub lengths under 10 mm to avoid reflections on multi-drop buses.","metaTitle":"PCA9518PWR I²C/SMBus Buffer IC – 20-TSSOP, Active","metaDescription":"Texas Instruments PCA9518PWR I²C/SMBus buffer in 20-TSSOP. Active lifecycle, 3V–3.6V supply. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Sensors & Transducers"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Interface":"I²C, SMBus","Applications":"Buffer","Mounting Type":"Surface Mount","Package / Case":"20-TSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 3.6V","Supplier Device Package":"20-TSSOP"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.16","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.16000","currency":"USD"},{"qty":10,"price":"$1.93800","currency":"USD"},{"qty":25,"price":"$1.82840","currency":"USD"},{"qty":100,"price":"$1.55790","currency":"USD"},{"qty":250,"price":"$1.46280","currency":"USD"},{"qty":500,"price":"$1.27996","currency":"USD"},{"qty":1000,"price":"$1.06053","currency":"USD"},{"qty":2000,"price":"$1.03500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/7f9ba0a25253cc624fbe7d1572f6b44d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I order PCA9518PWR or check availability?","answer":"We source it per RFQ — submit your target quantity and we will confirm current lead time and pricing from our multi-supplier network."},{"question":"What is the difference between PCA9518PWR and PCA9517PWR?","answer":"The PCA9518PWR is a 5-channel I²C hub/buffer, while the PCA9517PWR is a 2-channel level-translating buffer. The PCA9518 is designed for multi-drop fan-out; the PCA9517 handles voltage translation between 1.8V/2.5V/3.3V buses. They are not pin-compatible — the PCA9518 uses a 20-TSSOP package, the PCA9517 uses an 8-SOIC or 8-TSSOP."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/PCA9518PWR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/PCA9518PWR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}