{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"UCC28C52DR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"UCC28C52DR","canonicalUrl":"https://icboms.com/texas-instruments/UCC28C52DR","factsUrl":"https://icboms.com/api/mcp/products/UCC28C52DR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments UCC28C52DR current-mode PWM controller, 1 MHz switching frequency, 30 V supply, 8-SOIC package, -40°C to 125°C junction temperature.","salesMarkdown":"## What the 1 MHz switching frequency means for your transformer design The UCC28C52DR is a current-mode PWM controller from TI that runs at 1 MHz switching — that's the number that sets your transformer core size and magnetics budget. At 1 MHz you can shrink the flyback or forward converter transformer compared to a 100 kHz design, but you need a core material rated for those frequencies (e.g., 3F3 or N87) and careful layout to keep switching losses in check. The part supports buck, boost, flyback, forward converter, and SEPIC topologies, so it's a single BOM line for multiple isolated and non-isolated rails. Supply voltage goes up to 30 V on Vcc, which means you can run it straight off a 24 V industrial bus without a series regulator. The 100% max duty cycle lets you operate in dropout or near-zero input-output differential in boost mode. The 125°C TJ limit means you need to size the thermal path — 8-SOIC with no exposed pad relies on copper pour and airflow to keep the junction below that ceiling at full load. ## Control features that simplify the loop Built-in current limit, soft start, dead time control, enable, and frequency control reduce external component count. The synchronous rectifier output driver lets you use a MOSFET on the secondary side for better efficiency in low-voltage outputs.","metaTitle":"UCC28C52DR PWM Controller, 1 MHz, 30 V, 8-SOIC","metaDescription":"UCC28C52DR current-mode PWM controller from TI. 1 MHz switching, 30 V supply, buck/boost/flyback/forward/SEPIC. -40°C to 125°C. Active, RoHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Step-Up, Step-Down, Step-Up/Step-Down","Topology":"Buck, Boost, Flyback, Forward Converter, SEPIC","Clock Sync":"Yes","Output Type":"Transistor Driver","Mounting Type":"Surface Mount","Output Phases":"1","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Control Features":"Current Limit, Dead Time Control, Enable, Frequency Control, Soft Start","Duty Cycle (Max)":"100%","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"1MHz","Operating Temperature":"-40°C ~ 125°C (TJ)","Synchronous Rectifier":"Yes","Supplier Device Package":"8-SOIC","Voltage - Supply (Vcc/Vdd)":"30V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.97","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.97000","currency":"USD"},{"qty":10,"price":"$0.86400","currency":"USD"},{"qty":25,"price":"$0.82000","currency":"USD"},{"qty":100,"price":"$0.67370","currency":"USD"},{"qty":250,"price":"$0.62972","currency":"USD"},{"qty":500,"price":"$0.55652","currency":"USD"},{"qty":1000,"price":"$0.43935","currency":"USD"},{"qty":2500,"price":"$0.41006","currency":"USD"},{"qty":5000,"price":"$0.38956","currency":"USD"},{"qty":12500,"price":"$0.37491","currency":"USD"},{"qty":25000,"price":"$0.36320","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/f1445c06f535ab7882701fc605bf7555.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can UCC28C52DR be used in a flyback converter?","answer":"Yes, flyback is one of the listed topologies. The 1 MHz switching frequency lets you use a smaller transformer, and the 100% duty cycle supports the wide input range typical in flyback designs."},{"question":"What is the closest functional equivalent to UCC28C52DR?","answer":"The UCC2806DWTR is a dual-output current-mode controller with 50% max duty cycle and lower switching frequency (47 kHz typical), so it's not a direct pin-compatible replacement. For a single-output 1 MHz part, the UCC28C52DR is the right choice. The LM5150QURUMRQ1 is a 2.3 MHz automotive-grade boost controller but lacks flyback/forward support."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/UCC28C52DR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/UCC28C52DR 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}}