{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"UCC28251RGPT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"UCC28251RGPT","canonicalUrl":"https://icboms.com/texas-instruments/UCC28251RGPT","factsUrl":"https://icboms.com/api/mcp/products/UCC28251RGPT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments UCC28251 multi-topology PWM controller, UCC28251RGPT, Step-Up/Step-Down, Full-Bridge/Half-Bridge/Push-Pull, 42kHz-945kHz, 2 outputs, synchronous rectifier, 20-QFN (4x4).","salesMarkdown":"## Multi-topology PWM controller for isolated DC-DC The Texas Instruments UCC28251RGPT is a current-mode PWM controller that handles Step-Up/Step-Down regulation across Full-Bridge, Half-Bridge, and Push-Pull topologies — one part number covers the transformer-coupled architectures you'd typically reach for in isolated DC-DC converters, bus converters, and telecom brick supplies. Its 42 kHz to 945 kHz switching frequency range lets you trade off magnetics size against switching losses: lower frequencies suit through-hole transformers with higher saturation flux, while the upper end shrinks the planar magnetics in a 20-QFN (4x4) footprint. Operating temperature from -40°C to 125°C (TJ) is the full industrial junction-temperature grade. For a 60°C ambient enclosure with 20°C self-heating, you still have 45°C of thermal margin before hitting the 125°C limit — that headroom matters when the converter runs at high line and full load. Two PWM outputs with built-in synchronous rectifier drive let you eliminate the Schottky catch diode on the secondary side — the rectifier MOSFETs are driven in phase with the primary switching, which recovers the diode forward-drop loss and pushes efficiency into the mid-90s in a properly tuned full-bridge. ## Active lifecycle and compliance documentation ROHS3 Compliant means the part meets the current EU RoHS exemption scope, including the four phthalates.","metaTitle":"UCC28251RGPT PWM Controller","metaDescription":"Texas Instruments UCC28251RGPT multi-topology PWM controller. Active production, ROHS3 compliant. Step-Up/Step-Down, 42kHz-945kHz, -40°C to 125°C.","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-Up/Step-Down","Topology":"Full-Bridge, Half-Bridge, Push-Pull","Clock Sync":"No","Output Type":"PWM Signal","Mounting Type":"Surface Mount","Output Phases":"1","Package / Case":"20-VFQFN Exposed Pad","lifecycle_stage":"eol_hot","Control Features":"Current Limit, Enable, Frequency Control, Ramp, Soft Start","Number of Outputs":"2","Output Configuration":"Positive","Frequency - Switching":"42kHz ~ 945kHz","Operating Temperature":"-40°C ~ 125°C (TJ)","Synchronous Rectifier":"Yes","Supplier Device Package":"20-QFN (4x4)","Voltage - Supply (Vcc/Vdd)":"4.7V ~ 17V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.29","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.29000","currency":"USD"},{"qty":10,"price":"$4.75300","currency":"USD"},{"qty":25,"price":"$4.49320","currency":"USD"},{"qty":100,"price":"$3.89420","currency":"USD"},{"qty":250,"price":"$3.69452","currency":"USD"},{"qty":500,"price":"$3.31508","currency":"USD"},{"qty":1250,"price":"$2.82600","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/784278caa4a8ad209ab3740e253b09e3.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What compliance documentation does Texas Instruments provide for UCC28251RGPT?","answer":"The part is ROHS3 Compliant per the listing. Texas Instruments typically provides a RoHS declaration of conformity and material composition data on their product page."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/UCC28251RGPT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/UCC28251RGPT 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}}