{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TPS40190DRCR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"TPS40190DRCR","canonicalUrl":"https://icboms.com/texas-instruments/TPS40190DRCR","factsUrl":"https://icboms.com/api/mcp/products/TPS40190DRCR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments TPS40190DRCR, step-down buck controller, 4.5V to 15V supply, 300kHz fixed switching frequency, 85% max duty cycle, synchronous rectifier, enable pin, single output, -40°C to 85°C, 10-VSON (3x3) exposed pad package.","salesMarkdown":"## Enable pin and control features The TPS40190DRCR includes a dedicated enable pin for on/off control, allowing the controller to be sequenced with other rails or shut down under fault conditions. The enable threshold is referenced to the Vcc supply; pulling the pin below the threshold disables the output. There is no clock synchronization input — the oscillator runs free at 300 kHz, so multiple TPS40190DRCRs on the same board will beat against each other unless the switching nodes are phase-shifted with external RC delays or the layout separates the power stages. ## Sourcing and lifecycle The TPS40190DRCR is listed as Active with ROHS3 compliance.","metaTitle":"TPS40190DRCR Buck Controller, 300kHz, 10-VSON","metaDescription":"TI TPS40190DRCR step-down buck controller, 4.5V-15V input, 300kHz switching, 85% duty cycle, synchronous rectifier, enable pin, -40°C to 85°C, 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":"$2.72","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.72000","currency":"USD"},{"qty":10,"price":"$2.44700","currency":"USD"},{"qty":25,"price":"$2.30800","currency":"USD"},{"qty":100,"price":"$1.96650","currency":"USD"},{"qty":250,"price":"$1.84652","currency":"USD"},{"qty":500,"price":"$1.61570","currency":"USD"},{"qty":1000,"price":"$1.33873","currency":"USD"},{"qty":3000,"price":"$1.30650","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/fbd2816763e88f0d22e891576161f57f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does TPS40190DRCR have an enable pin?","answer":"Yes, the TPS40190DRCR includes an enable pin for on/off control. The enable threshold is referenced to Vcc; pulling the pin low disables the output."},{"question":"What is the typical application circuit for TPS40190DRCR?","answer":"The TPS40190DRCR is a voltage-mode buck controller driving external N-channel MOSFETs in a synchronous rectifier topology. A typical circuit includes an input capacitor, the controller with its compensation network, a pair of MOSFETs, an output inductor, and output capacitors. The 300 kHz fixed switching frequency sets the LC filter values."},{"question":"What is the closest functional second-source for TPS40190DRCR?","answer":"The UCC2806DWTR is a different part — it is a current-mode controller for boost, flyback, and forward topologies with two outputs and a 50% duty cycle limit. It is not a pin-compatible or functional replacement for the TPS40190DRCR buck controller. No direct second-source alternate is listed in the record for the TPS40190DRCR."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/TPS40190DRCR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/TPS40190DRCR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}