{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"PCA9544ARGYR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"PCA9544ARGYR","canonicalUrl":"https://icboms.com/texas-instruments/PCA9544ARGYR","factsUrl":"https://icboms.com/api/mcp/products/PCA9544ARGYR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments PCA9544ARGYR, I²C/SMBus translating switch, 2.3V–5.5V supply, 20-VFQFN exposed pad, Tape & Reel.","salesMarkdown":"The Texas Instruments PCA9544ARGYR is an I²C/SMBus translating switch that lets a single upstream bus segment connect to four downstream channels, each with its own voltage domain. ## Package and thermal — the exposed pad matters Without that via stitch, the junction temperature rises faster under sustained I²C traffic or when the switch is passing higher supply currents. The part is surface-mount only.","metaTitle":"PCA9544ARGYR I²C/SMBus Translating Switch, 2.3V–5.5V","metaDescription":"PCA9544ARGYR I²C/SMBus translating switch from Texas Instruments. Active lifecycle, 2.3V–5.5V supply, 20-VFQFN exposed pad.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Interface":"I²C, SMBus","Applications":"Translating Switch","Mounting Type":"Surface Mount","Package / Case":"20-VFQFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"2.3V ~ 5.5V","Supplier Device Package":"20-VQFN (3.5x4.5)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.29","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.29000","currency":"USD"},{"qty":10,"price":"$2.06100","currency":"USD"},{"qty":25,"price":"$1.94440","currency":"USD"},{"qty":100,"price":"$1.65650","currency":"USD"},{"qty":250,"price":"$1.55540","currency":"USD"},{"qty":500,"price":"$1.36098","currency":"USD"},{"qty":1000,"price":"$1.12766","currency":"USD"},{"qty":3000,"price":"$1.04989","currency":"USD"},{"qty":6000,"price":"$1.01101","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/f205dd81b820a229cc72eb6175ebaa03.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the PCA9544ARGYR used for?","answer":"It is an I²C/SMBus translating switch that multiplexes one upstream bus to four downstream channels, each operating at its own voltage level between 2.3 V and 5.5 V. Typical applications include server motherboards, baseband management, and mixed-voltage I²C systems."},{"question":"What package does the PCA9544ARGYR come in?","answer":"It is supplied in a 20-VFQFN with an exposed pad, also described as 20-VQFN (3.5 mm × 4.5 mm)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/PCA9544ARGYR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/PCA9544ARGYR 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}}