{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LT8301HS5#TRMPBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LT8301HS5TRMPBF","canonicalUrl":"https://icboms.com/analog-devices/LT8301HS5TRMPBF","factsUrl":"https://icboms.com/api/mcp/products/LT8301HS5%23TRMPBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LT8301HS5#TRMPBF flyback switching regulator, 1.2 A output, 2.7-42 V input range, TSOT-23-5 package, Tape & Reel.","salesMarkdown":"## Flyback regulator with 42 V input ceiling The LT8301HS5#TRMPBF is a monolithic flyback switching regulator from Analog Devices that integrates a 1.2 A power switch in a TSOT-23-5 package. ## What the 1.2 A switch and flyback topology mean for your BOM The 1.2 A current rating is the peak switch current limit, not the continuous output — in a flyback converter the output current depends on the turns ratio, duty cycle, and switching frequency. For a typical 5 V output from a 12 V input, expect around 300-400 mA continuous before the switch hits its limit. The topology supports positive or negative outputs with galvanic isolation using a coupled inductor or transformer, which is the key advantage over a simple buck-boost. Switching frequency goes down to 10 kHz — the part uses a Burst Mode operation that lowers the frequency at light loads to maintain efficiency. At 10 kHz the magnetics can be physically larger than a 500 kHz design, but the trade-off is lower switching losses and better efficiency under 10 mA loads. The junction temperature rating of -40°C to 150°C means the silicon is qualified for the full automotive temperature range, including the 125°C ambient often seen under the hood. The TSOT-23-5 package's thermal resistance limits the dissipation to about 0.8 W at 150°C junction in still air — the 1.2 A switch peak is only sustainable at low duty cycles or with adequate board copper. It is ROHS3 compliant, meeting the current EU restriction on hazardous substances without exemptions.","metaTitle":"LT8301HS5#TRMPBF Flyback Regulator, 1.2 A, TSOT-23-5","metaDescription":"LT8301HS5#TRMPBF flyback switching regulator, 1.2 A output, 2.7-42 V input, TSOT-23-5. Active, ROHS3 compliant. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Step-Up/Step-Down","Topology":"Flyback","Mounting Type":"Surface Mount","Package / Case":"SOT-23-5 Thin, TSOT-23-5","lifecycle_stage":"eol_hot","Current - Output":"1.2A","Number of Outputs":"1","Output Configuration":"Positive or Negative, Isolation Capable","Frequency - Switching":"Down to 10kHz","Operating Temperature":"-40°C ~ 150°C (TJ)","Synchronous Rectifier":"No","Voltage - Input (Max)":"42V","Voltage - Input (Min)":"2.7V","Supplier Device Package":"TSOT-23-5"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$9.62","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$9.62000","currency":"USD"},{"qty":10,"price":"$8.68600","currency":"USD"},{"qty":25,"price":"$8.28200","currency":"USD"},{"qty":100,"price":"$7.19120","currency":"USD"},{"qty":250,"price":"$6.86800","currency":"USD"},{"qty":500,"price":"$6.26200","currency":"USD"},{"qty":1000,"price":"$5.45400","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"How does the LT8301HS5#TRMPBF compare to the LT3573EMSE#PBF?","answer":"The LT8301HS5#TRMPBF is in a smaller TSOT-23-5 package and extends the junction temperature to 150°C, which matters for high-temperature environments where the ambient plus self-heating exceeds 125°C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LT8301HS5TRMPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LT8301HS5TRMPBF when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}