{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS65121RGTT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS65121RGTT","canonicalUrl":"https://icboms.com/texas-instruments/TPS65121RGTT","factsUrl":"https://icboms.com/api/mcp/products/TPS65121RGTT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS65121RGTT, quad-output DC/DC converter for TFT LCD bias, 2.5V-5.5V input, adjustable positive rail to 20V and negative rail to -18V, 16-VQFN (3x3) package, -40°C to 85°C.","salesMarkdown":"## Quad-output TFT bias supply — what it does and why it matters It takes a single input from 2.5V to 5.5V — think a Li-ion cell or a 3.3V/5V system rail — and generates the multiple voltage rails a TFT display needs: a main positive supply adjustable up to 20V, a negative supply adjustable down to -18V, plus two additional regulated outputs. That means one chip replaces the handful of separate boost and inverting regulators you would otherwise need to bias the gate drivers, source drivers, and common electrode of a typical LCD panel. That is the official lifecycle status — no further production runs are planned. ## Package and footprint — 3x3 mm QFN with exposed pad Housed in a 16-VFQFN with an exposed pad, the TPS65121RGTT uses the 16-VQFN (3x3) footprint. ## Temperature grade and application environment That covers TFT displays in outdoor kiosks, automotive infotainment (non-engine-bay), industrial HMIs, and portable instrumentation that sees a cold start. The 2.5V to 5.5V input range means it runs happily from a single Li-ion cell through its full discharge curve or from a regulated 3.3V or 5V bus.","metaTitle":"TPS65121RGTT TFT LCD Bias Supply, Quad Output, Obsolete","metaDescription":"Texas Instruments TPS65121RGTT quad-output DC/DC converter for TFT LCD bias. 2.5V-5.5V input, adjustable rails up to 20V and down to -18V.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["DC-DC Power Modules"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR)","Applications":"Converter, TFT LCD","Mounting Type":"Surface Mount","Package / Case":"16-VFQFN Exposed Pad","Product Status":"Obsolete","Voltage - Input":"2.5V ~ 5.5V","lifecycle_stage":"eol_hot","Voltage - Output":"3V ~ 5.6V, Adj up to 20V, Adj down to -18V","Number of Outputs":"4","Base Product Number":"TPS651","Operating Temperature":"-40°C~85°C","Supplier Device Package":"16-VQFN (3x3)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.4400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d9a1bd5046d74a7612d00d195580f560.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS65121RGTT/alternatives.json"},"ai":{"faq":[{"question":"Is TPS65121RGTT pin-compatible with TPS65120?","answer":"The TPS65120 and TPS65121 are from the same TPS651xx family of TFT LCD bias supplies, but the evidence does not confirm pin-to-pin compatibility. Verify the pin assignments against both datasheets before assuming a drop-in swap. The TPS65121 offers additional output flexibility (adjustable up to 20V and down to -18V) that the TPS65120 may not match exactly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS65121RGTT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS65121RGTT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}