{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LT3493EDCB#TRPBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LT3493EDCBTRPBF","canonicalUrl":"https://icboms.com/analog-devices/LT3493EDCBTRPBF","factsUrl":"https://icboms.com/api/mcp/products/LT3493EDCB%23TRPBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LT3493EDCB#TRPBF step-down (buck) regulator, adjustable output, 1.2 A, 750 kHz, 6-WFDFN exposed pad (2x3 mm), surface mount, tape and reel.","salesMarkdown":"The LT3493EDCB#TRPBF comes in a 6-lead WFDFN with exposed pad (2x3 mm DFN). The 750 kHz fixed switching frequency keeps the inductor small (typically 10-22 µH for this current range) but pushes the switch-node ringing above 30 MHz — layout must keep the input cap, inductor, and catch diode loop tight to avoid radiated emissions. ## Input range and output flexibility This is a non-synchronous buck — the low-side catch diode is external. The 3.6 V minimum input means it starts from a 5 V rail with margin, or from a 12 V battery sitting at 10 V under crank. The 36 V maximum covers 24 V industrial rails and 12 V load-dump transients without an external clamp. Output adjusts from 0.78 V up to 34.2 V via a resistor divider on the FB pin. The 0.78 V reference lets it power 1.2 V core rails and 3.3 V I/O from the same BOM — just change the feedback resistor pair. At the hot end, the 1.2 A output must be derated per the junction temperature — the WFDFN's thermal resistance means full current is only available below roughly 60°C ambient unless airflow or a larger copper area is used. The 750 kHz switching frequency is fixed — no frequency foldback or spread-spectrum. At light loads, the part pulses in Burst Mode to maintain efficiency, which introduces ripple at the audio band. If the load is always below 100 mA, a linear regulator may be quieter.","metaTitle":"LT3493EDCB#TRPBF Buck Regulator, 1.2 A, 750 kHz, 6-DFN","metaDescription":"Analog Devices LT3493EDCB#TRPBF step-down regulator: 3.6-36 V input, adjustable 0.78-34.2 V output, 1.2 A, 750 kHz. Active, ROHS3. 6-WFDFN (2x3 mm).","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-Down","Topology":"Buck","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"6-WFDFN Exposed Pad","lifecycle_stage":"eol_hot","Current - Output":"1.2A","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"750kHz","Operating Temperature":"-40°C ~ 85°C (TA)","Synchronous Rectifier":"No","Voltage - Input (Max)":"36V","Voltage - Input (Min)":"3.6V","Voltage - Output (Max)":"34.2V","Supplier Device Package":"6-DFN (2x3)","Voltage - Output (Min/Fixed)":"0.78V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.72","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$7.72000","currency":"USD"},{"qty":10,"price":"$6.97100","currency":"USD"},{"qty":25,"price":"$6.64640","currency":"USD"},{"qty":100,"price":"$5.77090","currency":"USD"},{"qty":250,"price":"$5.51156","currency":"USD"},{"qty":500,"price":"$5.02526","currency":"USD"},{"qty":1000,"price":"$4.37684","currency":"USD"},{"qty":2500,"price":"$4.21473","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/47f811819f562d08f13dba255e4d8352.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional alternative to LT3493EDCB#TRPBF?","answer":"The ADP2300AUJZ-R2 is the closest parametric peer: same 1.2 A output current, same buck topology, adjustable output, non-synchronous, and a similar 700 kHz switching frequency. However, the ADP2300 uses a different package (TSOT-23-6) and has a wider junction temperature range (125°C vs 85°C). It is not a pin-compatible drop-in — the PCB layout and BOM (inductor, catch diode) differ."},{"question":"What compliance documentation does Analog Devices provide for LT3493EDCB#TRPBF?","answer":"The part is ROHS3 compliant. Analog Devices provides a datasheet, RoHS certificate of compliance, and material declaration. No UL or IEC certification is listed on this part record."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LT3493EDCBTRPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LT3493EDCBTRPBF 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}}