{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS40190DRCT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS40190DRCT","canonicalUrl":"https://icboms.com/texas-instruments/TPS40190DRCT","factsUrl":"https://icboms.com/api/mcp/products/TPS40190DRCT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS40190DRCT synchronous buck controller, step-down topology, 4.5V to 15V input, 300kHz switching, 85% max duty cycle, single output, 10-VFDFN exposed pad package, -40°C to 85°C.","salesMarkdown":"## Input range and switching frequency — the two numbers that size the power stage The TPS40190DRCT accepts a 4.5 V to 15 V supply rail, which covers standard 5 V, 9 V, and 12 V intermediate buses used in industrial and telecom equipment. Switching at 300 kHz, the controller lets you use a smaller inductor than a 100 kHz design, but the 85 % max duty cycle means the output voltage must stay below about 12.75 V from a 15 V input — enough for a 12 V rail but not a 5 V rail from a 5.5 V input. ## Synchronous rectifier and temperature grade — efficiency and environment The built-in synchronous rectifier replaces the external freewheeling diode with a low-side FET driver, boosting efficiency by several points at high current — expect 90 %+ in a well-laid-out 12 V to 3.3 V conversion at a few amps. ROHS3 compliant, so it passes the EU material restriction for new designs without exemption paperwork.","metaTitle":"TPS40190DRCT Buck Controller, 4.5V-15V, 300kHz, 10-VSON","metaDescription":"Texas Instruments TPS40190DRCT synchronous buck controller, 4.5V to 15V input, 300kHz switching, 85% duty cycle, 10-VSON package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Step-Down","Topology":"Buck","Clock Sync":"No","Output Type":"Transistor Driver","Mounting Type":"Surface Mount","Output Phases":"1","Package / Case":"10-VFDFN Exposed Pad","lifecycle_stage":"eol_hot","Control Features":"Enable","Duty Cycle (Max)":"85%","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"300kHz","Operating Temperature":"-40°C ~ 85°C (TA)","Synchronous Rectifier":"Yes","Supplier Device Package":"10-VSON (3x3)","Voltage - Supply (Vcc/Vdd)":"4.5V ~ 15V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.94","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.94000","currency":"USD"},{"qty":10,"price":"$2.63600","currency":"USD"},{"qty":25,"price":"$2.49240","currency":"USD"},{"qty":100,"price":"$2.16000","currency":"USD"},{"qty":250,"price":"$2.04924","currency":"USD"},{"qty":500,"price":"$1.83878","currency":"USD"},{"qty":1250,"price":"$1.56750","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/fbd2816763e88f0d22e891576161f57f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What are the alternatives to TPS40190DRCT?","answer":"The TPS53124RGET is a dual-output synchronous buck controller from the same D-CAP family, but it drives two outputs instead of one — not a single-output drop-in replacement."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS40190DRCT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS40190DRCT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}