{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TCK22971G,LF","brand":"Toshiba Semiconductor","brandSlug":"toshiba","productSlug":"TCK22971GLF","canonicalUrl":"https://icboms.com/toshiba/TCK22971GLF","factsUrl":"https://icboms.com/api/mcp/products/TCK22971G%2CLF","rawCanonicalId":null},"summary":{"shortDescription":"Toshiba Semiconductor TCK22971G,LF, P-Channel load switch, 1:1 input-output, 2A max output, 25mOhm Rds(on), 1.1V-5.5V load, slew rate controlled, WLCSP-6, Tape & Reel.","salesMarkdown":"## Load switch for battery-powered portable gear The TCK22971G,LF is a single-channel, high-side P-Channel load switch from Toshiba, designed to enable or disable power rails in portable electronics where board space is tight and on-resistance matters. It handles up to 2 A continuous output across a load voltage range of 1.1 V to 5.5 V, with a typical Rds(on) of 25 mOhm — low enough that at 2 A the conduction loss stays under 100 mW, so the WLCSP package doesn't need a copper pour to stay cool. The switch is controlled by a simple On/Off logic input (non-inverting), and no external Vcc supply is required — the gate drive is derived from the load rail itself. ## Slew-rate control and reverse-current blocking Slew rate controlled switching means the output voltage ramps up gradually when the enable pin goes high — this limits inrush current into downstream decoupling caps and prevents the upstream rail from dipping during power-up. Built-in reverse current protection blocks current flow from the output back to the input when the switch is off, which is useful in multi-rail systems where one rail might stay live while another is gated. ## WLCSP-6 package — board-fit considerations The device comes in a 6-bump WLCSP (0.80 x 1.2 mm body) — the 0.4 mm pitch and exposed bumps mean the PCB land pattern must match the Toshiba recommended footprint exactly to avoid solder bridging and ensure reliable contact. Because it's a wafer-level chip-scale package, the MSL rating is typically MSL-1 (no moisture sensitivity bake required before reflow), but verify the reel label — if it's MSL-3 or higher, bake it before the oven or it popcorns.","metaTitle":"TCK22971G,LF Toshiba P-Channel Load Switch, 2A, WLCSP","metaDescription":"Active Toshiba TCK22971G,LF load switch, 2A max output, 25mOhm Rds(on), slew rate controlled, WLCSP-6, ROHS3. Sourced to order—request a quote.","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","Interface":"On/Off","Input Type":"Non-Inverting","Output Type":"P-Channel","Switch Type":"General Purpose","Rds On (Typ)":"25mOhm","Mounting Type":"Surface Mount","Package / Case":"6-UFBGA, WLCSP","Voltage - Load":"1.1V ~ 5.5V","lifecycle_stage":"eol_hot","Fault Protection":"Reverse Current","Number of Outputs":"1","Output Configuration":"High Side","Ratio - Input:Output":"1:1","Operating Temperature":"-40°C ~ 85°C (TA)","Current - Output (Max)":"2A","Supplier Device Package":"6-WCSPE (0.80x1.2)","Voltage - Supply (Vcc/Vdd)":"Not Required"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.54","stockQuantity":14,"priceTiers":[{"qty":1,"price":"$0.54000","currency":"USD"},{"qty":10,"price":"$0.45800","currency":"USD"},{"qty":25,"price":"$0.42760","currency":"USD"},{"qty":100,"price":"$0.34220","currency":"USD"},{"qty":250,"price":"$0.31776","currency":"USD"},{"qty":500,"price":"$0.26886","currency":"USD"},{"qty":1000,"price":"$0.20776","currency":"USD"},{"qty":2500,"price":"$0.18942","currency":"USD"},{"qty":5000,"price":"$0.17720","currency":"USD"},{"qty":10000,"price":"$0.16498","currency":"USD"},{"qty":25000,"price":"$0.15643","currency":"USD"},{"qty":50000,"price":"$0.15276","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/31753f2bc94e53c591e76f06a7f43830.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional second-source to TCK22971G,LF?","answer":"The TCK22972G,LF is a functional peer with the same 25 mOhm Rds(on), 2 A output, and WLCSP-6 package — the key difference is the output configuration (high side vs P-Channel) and the specific enable logic. The TCK22971G,LF uses a non-inverting input and P-Channel output, while the TCK22972G,LF shares the same high-side topology. Verify the enable polarity and output type against your schematic before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/toshiba/TCK22971GLF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/toshiba/TCK22971GLF 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}}