{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS61140DRCT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS61140DRCT","canonicalUrl":"https://icboms.com/texas-instruments/TPS61140DRCT","factsUrl":"https://icboms.com/api/mcp/products/TPS61140DRCT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS61140DRCT, DC DC Regulator, Step-Up (Boost) topology, 1.2 MHz, 2.5 V to 6 V supply, 27 V output, 2 channels at 35 mA, PWM dimming, -40°C to 85°C, 10-VFDFN Exposed Pad (10-VSON 3x3).","salesMarkdown":"## Boost regulator for dual-string backlight It integrates two regulated current sinks, each rated for 35 mA, and delivers a boosted output up to 27 V — enough headroom for two series strings of 6 to 8 white LEDs each, depending on forward voltage. PWM dimming input is built in, so brightness control comes straight from the system processor or a PWM source without an external DAC or filter. ## Switching frequency and inductor choice The 1.2 MHz switching frequency lets you use a small, low-profile inductor — typically 4.7 µH to 10 µH — which keeps the total solution footprint tight. That same frequency pushes the switching noise above the audio band, so no audible whine from the inductor or ceramic output caps. Input supply range is 2.5 V to 6 V, covering single-cell Li-Ion (3.6 V nominal) through 5 V USB rails. The small package suits space-constrained portable or handheld designs, but the exposed pad means the reflow profile and solder paste coverage under the pad matter for thermal performance — no lab bench, no problem, but a decent hot-air station gets it off if you need to swap it in the field.","metaTitle":"TPS61140DRCT DC-DC Boost Regulator","metaDescription":"TI TPS61140DRCT DC-DC step-up regulator, 27V output, 2 channels at 35 mA each, PWM dimming, 1.2 MHz, -40°C to 85°C, 10-VSON.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Type":"DC DC Regulator","Series":"-","Dimming":"PWM","Package":"Tape & Reel (TR); Cut Tape (CT)","Topology":"Step-Up (Boost)","Frequency":"1.2MHz","Applications":"Backlight","Mounting Type":"Surface Mount","Package / Case":"10-VFDFN Exposed Pad","Product Status":"Active","lifecycle_stage":"eol_hot","Voltage - Output":"27V","Number of Outputs":"2","Internal Switch(s)":"Yes","Base Product Number":"TPS61140","Operating Temperature":"-40°C~85°C(TA)","Voltage - Supply (Max)":"6V","Voltage - Supply (Min)":"2.5V","Supplier Device Package":"10-VSON (3x3)","Current - Output / Channel":"35mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.8513","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2d0eb1f014c2b7e0155cfd036a6b3260.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TPS61140DRCT/alternatives.json"},"ai":{"faq":[{"question":"How many LEDs can TPS61140DRCT drive?","answer":"With two channels at 35 mA each and a 27 V output ceiling, the TPS61140DRCT can drive two parallel strings of LEDs. The number of LEDs per string depends on their forward voltage — typically 6 to 8 white LEDs per string at 3 V each, leaving headroom for the current sink."},{"question":"What is the replacement or equivalent for TPS61140DRCT?","answer":"No official replacement or pin-compatible equivalent is listed by Texas Instruments. The TPS61140 family includes other output current and channel-count variants, but the DRCT suffix is the 2-channel, 35 mA version in the 10-VSON package. For a direct drop-in, stick with this exact order code."},{"question":"What is the typical application circuit for TPS61140DRCT?","answer":"A typical application uses a single Li-Ion cell or 5 V rail as input, a 4.7 µH to 10 µH inductor, a Schottky rectifier, and two ceramic output capacitors. The two LED strings connect between the boost output and the respective current-sink pins; PWM dimming is applied to the EN/PWM pin. The datasheet provides the full schematic and component selection guide."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS61140DRCT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS61140DRCT 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}}