{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS61040DBVRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS61040DBVRG4","canonicalUrl":"https://icboms.com/texas-instruments/TPS61040DBVRG4","factsUrl":"https://icboms.com/api/mcp/products/TPS61040DBVRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS61040DBVRG4, DC-DC Regulator, Step-Up (Boost) topology, 1MHz, 28V output, 350mA switch, PWM dimming, SOT-23-5, -40°C to 85°C.","salesMarkdown":"## Boost regulator with integrated switch for LED backlight It integrates the power switch, operates at a fixed 1 MHz switching frequency, and delivers a regulated output voltage up to 28 V from an input supply between 1.8 V and 6 V. ## 28 V output, 350 mA switch — sizing the LED string The 28 V output ceiling supports a string of up to 7–8 white LEDs in series (assuming ~3.2 V per LED), which covers most small-panel backlight applications. PWM dimming input on the control pin allows the backlight brightness to be adjusted without audible noise, since the switching frequency (1 MHz) is well above the audio band. ## Industrial temperature grade and SOT-23-5 footprint The SOT-23-5 package (SC-74A) is a 5-pin, 2.9 mm × 1.6 mm body — small enough for compact PCBs, but the 0.95 mm pin pitch is layout-friendly for two-layer boards.","metaTitle":"TPS61040DBVRG4 DC-DC Boost Regulator, 28V, 1MHz, SOT-23-5","metaDescription":"Texas Instruments TPS61040DBVRG4 step-up DC-DC regulator. 28V output, 350mA switch, 1MHz, PWM dimming, SOT-23-5. Active, industrial temp.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Mfr":"Texas Instruments","Type":"DC DC Regulator","Series":"-","Dimming":"PWM","Package":"Tape & Reel (TR); Cut Tape (CT)","Topology":"Step-Up (Boost)","Frequency":"1MHz","Applications":"Backlight","Mounting Type":"Surface Mount","Package / Case":"SC-74A, SOT-753","lifecycle_stage":"eol_hot","Voltage - Output":"28V","Number of Outputs":"1","Internal Switch(s)":"Yes","Base Product Number":"TPS61040","Operating Temperature":"-40°C~85°C(TA)","Voltage - Supply (Max)":"6V","Voltage - Supply (Min)":"1.8V","Supplier Device Package":"SOT-23-5","Current - Output / Channel":"350mA (Switch)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.6900","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/d8f76129c487f161f6bee895f21a547b.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS61040DBVRG4/alternatives.json"},"ai":{"faq":[{"question":"Can TPS61040DBVRG4 be used for LCD backlight?","answer":"Yes, it is specifically intended for backlight applications. The 28 V output and PWM dimming input make it a direct fit for driving LED strings in small- to medium-size LCD panels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS61040DBVRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS61040DBVRG4 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}}