{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS61121RSARG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS61121RSARG4","canonicalUrl":"https://icboms.com/texas-instruments/TPS61121RSARG4","factsUrl":"https://icboms.com/api/mcp/products/TPS61121RSARG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS61121RSARG4 DC-DC converter IC, 10µA supply current, 1.8V to 5.5V input range, 16-VQFN Exposed Pad package, -40°C to 85°C operating temperature, Tape & Reel.","salesMarkdown":"For a BOM that calls out this part, procurement moves to the independent market — surplus inventory, broker stock, or last-time-buy remnants. ## 10 µA quiescent current — the battery-life spec The TPS61121RSARG4 draws just 10 µA from the supply in operation. That quiescent current is the headline number for a handheld or mobile device where every microamp extends battery run time. The part is a DC-DC converter intended for power management in portable gear — think feature phones, media players, handheld instruments, and similar battery-powered handheld/mobile devices. ## 16-QFN with exposed pad — hand-solderable? The package is a 16-VQFN with an exposed pad, measuring 4 mm × 4 mm (supplier device package 16-QFN). For a hobbyist or maker: yes, you can hand-solder a 16-QFN with a fine-tip iron and some flux, but the exposed pad requires either a hot-air station or a reflow oven to get a reliable solder joint underneath. ## Temperature range — not just indoor use That makes it suitable for outdoor handhelds, automotive cabin electronics, or industrial portable tools that see temperature swings. The surface-mount mounting type is standard for modern PCB assembly.","metaTitle":"TI TPS61121RSARG4 DC-DC Converter, 10µA Iq, 1.8V-5.5V","metaDescription":"Texas Instruments TPS61121RSARG4 DC-DC converter IC. 10µA supply current, 1.8V-5.5V input, -40°C to 85°C. 16-QFN package.","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":"Handheld/Mobile Devices","Mounting Type":"Surface Mount","Package / Case":"16-VQFN Exposed Pad","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Current - Supply":"10µA","Voltage - Supply":"1.8V ~ 5.5V","Base Product Number":"TPS611","Operating Temperature":"-40°C~85°C","Supplier Device Package":"16-QFN (4x4)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/995ae754a2ec387b6971db743945fed9.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS61121RSARG4/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for TPS61121RSARG4?","answer":"Texas Instruments has not published an official successor order code for the TPS61121RSARG4 in the available records. Without a direct drop-in replacement from TI, the best approach is to review the TPS611xx family for a functionally similar DC-DC converter with the same 1.8V–5.5V input range and 10 µA quiescent current, then verify pin compatibility and package footprint against the 16-QFN layout. We can help cross-reference against current TI inventory on request."},{"question":"Can I still order TPS61121RSARG4?","answer":"Yes — through independent distribution. Because the part is obsolete from TI, it is not available via the factory channel. Submit a quote request with your target quantity; we confirm stock availability and current pricing at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS61121RSARG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS61121RSARG4 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}}