{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS61253AYFFT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS61253AYFFT","canonicalUrl":"https://icboms.com/texas-instruments/TPS61253AYFFT","factsUrl":"https://icboms.com/api/mcp/products/TPS61253AYFFT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS61253A series, Step-Up (Boost) DC-DC Converter, Fixed 5V Output, 4.6A Switch Current, 3.5MHz Switching Frequency, Synchronous Rectification, 9-DSBGA Package, -40°C to 85°C.","salesMarkdown":"The TPS61253AYFFT is a fixed 5V output synchronous boost converter from Texas Instruments, switching at 3.5 MHz and rated for a 4.6A internal switch current. The high switching frequency shrinks the inductor and output capacitor to 1 µH / 10 µF class values — the trade-off is higher switching losses at light load, but the synchronous rectifier (internal low-side FET replacing the Schottky diode) recovers about 0.35V of forward drop, keeping efficiency above 90% across most of the load range. Input range is 2.3V to 5.5V, so it boots from a single-cell Li-ion at nominal 3.6V or from a 3.3V regulated rail. The 2.3V minimum means it won't start below that — a depleted Li-ion at 2.5V is fine, but cold-cranking a 5V rail from a 1.8V source requires a different part (the TPS6125x family with lower min Vin). Output is fixed at 5V — no external divider, no adjustment. If the load needs 3.3V or an adjustable output, step to the TPS61253A adjustable variant. ## 9-DSBGA: wafer-level chip-scale footprint The package is a 9-bump DSBGA (wafer-level chip-scale) on 0.5 mm pitch. There are no leads — the bumps are the terminals. PCB fan-out requires micro-vias or very fine trace/space (0.10 mm / 0.10 mm minimum) to route the 5V output, input, and ground bumps to the inner layers. A two-layer board is possible if the ground bump is stitched with multiple vias; a four-layer stack-up with a dedicated ground plane below the converter is the safer call for thermal and EMI. The 3.5 MHz switching frequency places the fundamental switching harmonic around 7 MHz and the second at 10.5 MHz — keep the input capacitor (10 µF X5R 6.3V or 10V) within 2 mm of the VIN bump, and the output capacitor (22 µF X5R 6.3V) within 2 mm of the VOUT bump. The inductor's self-resonant frequency should be above 20 MHz; a 1 µH shielded inductor rated for 5 A saturation handles the 4.6A switch peak. ## Active lifecycle, no automotive qualification It is not AEC-Q100 qualified, so it is not suited for automotive-grade applications (powertrain, chassis, ADAS) without additional qualification work. The part is procured per BOM quantity.","metaTitle":"TI TPS61253AYFFT Step-Up Boost Converter, 5V Fixed","metaDescription":"Texas Instruments TPS61253AYFFT boost converter: fixed 5V output, 4.6A switch current, 3.5MHz switching, synchronous rectification, 9-DSBGA package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Step-Up","Topology":"Boost","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"9-UFBGA, DSBGA","Product Status":"Active","lifecycle_stage":"eol_hot","Current - Output":"4.6A (Switch)","Number of Outputs":"1","Base Product Number":"TPS61253","Output Configuration":"Positive","Frequency - Switching":"3.5MHz","Operating Temperature":"-40°C~85°C(TA)","Synchronous Rectifier":"Yes","Voltage - Input (Max)":"5.5V","Voltage - Input (Min)":"2.3V","Voltage - Output (Max)":"-","Supplier Device Package":"9-DSBGA","Voltage - Output (Min/Fixed)":"5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.6500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/95dc240b8cb12457b5c8900da7b6ce3a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS61253AYFFT/alternatives.json"},"ai":{"faq":[{"question":"What is the switching frequency of TPS61253AYFFT?","answer":"The switching frequency is 3.5 MHz. This allows small inductor and capacitor values (typically 1 µH inductor, 10-22 µF output capacitor) but increases switching losses at light load."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS61253AYFFT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS61253AYFFT 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}}