{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3370SDX-4221/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3370SDX-4221-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM3370SDX-4221-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM3370SDX-4221%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM3370SDX-4221/NOPB, dual 600 mA step-down buck regulator, fixed 1.8V and 3.3V outputs, 2 MHz switching, synchronous rectifier, 16-WSON (5x4) exposed-pad package, -30°C to 85°C operating temperature.","salesMarkdown":"## Package and thermal: 16-WSON with exposed pad Housed in a 16-WFDFN exposed-pad package (supplier device package 16-WSON, 5x4 mm), the part relies on the exposed paddle soldered to a copper land on the PCB to dissipate heat. The 0.50 mm pitch of the WSON package is manageable with a 4-layer board; two-layer designs need careful fan-out of the exposed-pad connection.","metaTitle":"LM3370SDX-4221/NOPB Dual 600 mA Step-Down Buck Regulator","metaDescription":"Texas Instruments LM3370SDX-4221/NOPB dual 600 mA step-down buck regulator with fixed 1.8V and 3.3V outputs, 2 MHz switching, 16-WSON package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Step-Down","Topology":"Buck","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"16-WFDFN Exposed Pad","Product Status":"Active","lifecycle_stage":"eol_hot","Current - Output":"600mA","Number of Outputs":"2","Base Product Number":"LM3370","Output Configuration":"Positive","Frequency - Switching":"2MHz","Operating Temperature":"-30°C~85°C(TA)","Synchronous Rectifier":"Yes","Voltage - Input (Max)":"5.5V","Voltage - Input (Min)":"2.7V","Voltage - Output (Max)":"-","Supplier Device Package":"16-WSON (5x4)","Voltage - Output (Min/Fixed)":"1.8V, 3.3V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8715","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/07e3d7353ec72bea3806cd32612099ea.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM3370SDX-4221%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"What are the fixed output voltages of the LM3370SDX-4221/NOPB?","answer":"The two outputs are fixed at 1.8 V and 3.3 V. There is no adjustable version under this order code — if your design needs a different voltage pair, look at other LM3370 fixed-output variants."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3370SDX-4221-NOPB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM3370SDX-4221-NOPB when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}