{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS62229DDCR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS62229DDCR","canonicalUrl":"https://icboms.com/texas-instruments/TPS62229DDCR","factsUrl":"https://icboms.com/api/mcp/products/TPS62229DDCR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS62229DDCR, Step-Down Buck Converter, Fixed 1.7V Output, 400 mA, 1.25 MHz, SOT-23-5 Thin, -40°C to 85°C.","salesMarkdown":"## 400 mA step-down in a SOT-23-5 Thin package It switches at 1.25 MHz and integrates a synchronous rectifier, so no external Schottky diode is needed — the efficiency curve stays clean across light and full load. The output is fixed at 1.7 V, which suits powering low-voltage digital cores or sensor rails in portable and industrial gear. TI has discontinued the TPS62229DDCR, so it is no longer available through the factory channel. The SOT-23-5 Thin package (TSOT-23-5) is a surface-mount footprint with 0.95 mm pitch and a low profile — about 1 mm max height. It reflows well with a standard lead-free profile; the small thermal mass means it heats quickly under hot air, so keep the nozzle temperature around 300°C and watch for the part to shift if the airflow is too high. The 400 mA output current sets the load budget — this converter is sized for low-power rails, not a 1 A+ supply. The 1.25 MHz switching frequency lets you use a small inductor (typically 2.2 µH to 4.7 µH) and low-ESR ceramic output capacitors, keeping the total solution footprint compact. Input voltage range is 2.5 V to 6 V, so it runs from a single Li-ion cell (3.0 V to 4.2 V) or a 3.3 V / 5 V regulated rail. The fixed 1.7 V output is set internally — no feedback resistor divider needed, which saves two components and one PCB trace.","metaTitle":"TPS62229DDCR Step-Down Converter, 400 mA, 1.25 MHz, Obsolete","metaDescription":"Texas Instruments TPS62229DDCR fixed-output buck converter: 400 mA, 1.25 MHz switching, SOT-23-5 Thin package, -40°C to 85°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR)","Function":"Step-Down","Topology":"Buck","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"SOT-23-5 Thin, TSOT-23-5","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Current - Output":"400mA","Number of Outputs":"1","Base Product Number":"TPS622","Output Configuration":"Positive","Frequency - Switching":"1.25MHz","Operating Temperature":"-40°C~85°C(TA)","Synchronous Rectifier":"Yes","Voltage - Input (Max)":"6V","Voltage - Input (Min)":"2.5V","Voltage - Output (Max)":"-","Supplier Device Package":"SOT-23-THIN","Voltage - Output (Min/Fixed)":"1.7V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.8700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e0274b1b9bfa903b303a9f5c4630edbb.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS62229DDCR/alternatives.json"},"ai":{"faq":[{"question":"What package does TPS62229DDCR come in?","answer":"It comes in a SOT-23-5 Thin package, also called TSOT-23-5. It is a surface-mount package with five leads and a low profile suitable for space-constrained designs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS62229DDCR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS62229DDCR 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}}