{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TCK321G,LF","brand":"Toshiba Semiconductor","brandSlug":"toshiba","productSlug":"TCK321GLF","canonicalUrl":"https://icboms.com/toshiba/TCK321GLF","factsUrl":"https://icboms.com/api/mcp/products/TCK321G%2CLF","rawCanonicalId":null},"summary":{"shortDescription":"Toshiba Semiconductor TCK321G,LF high-side load switch, N-channel, 2A output, 98mOhm Rds(on), 2.3V to 36V load, 16-WCSPC package, Tape & Reel.","salesMarkdown":"The Toshiba TCK321G,LF is a single-channel high-side load switch with an N-channel output, rated for general-purpose on/off switching of power rails up to 2 A continuous. It operates from a 2.3 V to 36 V load voltage range and requires no separate Vcc/Vdd supply — the gate drive is self-biased from the input rail. The 2:1 input-to-output ratio means the switch can be configured with two input pins for load-sharing or redundant supply paths, though it drives a single output. The 2 A maximum continuous output current is the headline rating for rail selection — a 3.3 V peripheral bus drawing 1.5 A peak stays within margin, but a 1.8 V core rail pulling 2.5 A exceeds the switch's capability and needs a higher-current part. Typical Rds(on) of 98 mOhm at the operating point sets the conduction loss: at 2 A, I²R dissipation is roughly 0.4 W, which the 16-WCSPC package must sink through the board's copper — the thermal path is the PCB pad, not a heatsink. Integrated fault protection — over-temperature, over-voltage, reverse-current blocking, and under-voltage lockout — means the switch handles load-dump and reverse-battery conditions on the output without external clamp diodes or a separate UVLO supervisor. Surface-mount mounting requires a standard BGA reflow profile; the 0.5 mm ball pitch demands a 4-layer PCB for fan-out of the inner balls to the outer rows. Available in Tape & Reel (TR) for automated pick-and-place or Cut Tape (CT) for prototype quantities — the reel quantity is the standard 3000-piece reel for this package size. Fully ROHS3 compliant, meaning no exemptions for lead, mercury, cadmium, or other restricted substances — it ships with the LF (lead-free) suffix confirming the finish.","metaTitle":"Toshiba TCK321G,LF High-Side Load Switch, 2A, 98mOhm","metaDescription":"Active Toshiba TCK321G,LF high-side load switch, 2A output, 98mOhm Rds(on), 2.3-36V load range, 16-WCSPC. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Features":"Slew Rate Controlled, Status Flag","Interface":"On/Off","Output Type":"N-Channel","Switch Type":"General Purpose","Rds On (Typ)":"98mOhm","Mounting Type":"Surface Mount","Package / Case":"16-UFBGA, CSPBGA","Voltage - Load":"2.3V ~ 36V","lifecycle_stage":"eol_hot","Fault Protection":"Over Temperature, Over Voltage, Reverse Current, UVLO","Number of Outputs":"1","Output Configuration":"High Side","Ratio - Input:Output":"2:1","Operating Temperature":"-40°C ~ 85°C (TA)","Current - Output (Max)":"2A","Supplier Device Package":"16-WCSPC (1.9x1.9)","Voltage - Supply (Vcc/Vdd)":"Not Required"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.45","stockQuantity":19,"priceTiers":[{"qty":1,"price":"$1.45000","currency":"USD"},{"qty":10,"price":"$1.29900","currency":"USD"},{"qty":25,"price":"$1.23320","currency":"USD"},{"qty":100,"price":"$1.01280","currency":"USD"},{"qty":250,"price":"$0.94676","currency":"USD"},{"qty":500,"price":"$0.83668","currency":"USD"},{"qty":1000,"price":"$0.66054","currency":"USD"},{"qty":2500,"price":"$0.61650","currency":"USD"},{"qty":5000,"price":"$0.58568","currency":"USD"},{"qty":10000,"price":"$0.56366","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/4c889081a7f4b62a0062f99d5ee099e1.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/toshiba/TCK321GLF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/toshiba/TCK321GLF when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}