{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM2830ZMFX","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM2830ZMFX","canonicalUrl":"https://icboms.com/texas-instruments/LM2830ZMFX","factsUrl":"https://icboms.com/api/mcp/products/LM2830ZMFX","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM2830ZMFX step-down (buck) regulator, 1 A output, 3 MHz switching, adjustable output 0.6 V to 4.5 V, SC-74A / SOT-753 package, Bulk.","salesMarkdown":"## Package and board-fit: SOT-23-5 in Bulk delivery The LM2830ZMFX ships in Bulk — loose units in an antistatic bag, not tape-and-reel. The SOT-23-5 (SC-74A) footprint has a 0.95 mm pin pitch and no exposed thermal pad; the junction-to-ambient thermal resistance relies entirely on the PCB copper area under and around the package. For a 1 A continuous load, a 2-layer board with 1 oz copper and a 300 mm² pour on the bottom layer keeps the junction below 125°C at 85°C ambient. The datasheet layout recommendation is the starting point — the absence of a thermal pad means the board designer owns the thermal budget. ## Input range and switching frequency: what 3 MHz buys the BOM The 3 MHz switching frequency lets the output filter use a 1 µH inductor and a 10 µF ceramic capacitor — small enough for a 5 mm × 6 mm total solution footprint on a space-constrained board. At 3 MHz the switching losses dominate the efficiency curve above 500 mA load; expect 85-88% peak efficiency at 3.3 V input, 1.8 V output. The non-synchronous topology (external Schottky diode required) adds a 0.3-0.4 V forward drop that cuts efficiency at low output voltages — below 1.2 V out, a synchronous part would be a better fit. ## Adjustable output: one BOM line for multiple rails The feedback pin regulates to 0.6 V internal reference. The 3 MHz bandwidth keeps the loop stable with ceramic output capacitors; the datasheet gives the compensation values for each target voltage. ## Lifecycle and compliance: active but not RoHS The RoHS non-compliant status means it uses tin-lead plating on the leads; this part is intended for legacy assemblies that run a 260°C peak reflow profile with SnPb solder paste. For a lead-free line, a Pb-free alternative (LM2830ZMFX/NOPB) exists but is a different order code.","metaTitle":"TI LM2830ZMFX Buck Converter, 1A, 3MHz, SOT-23-5","metaDescription":"Texas Instruments LM2830ZMFX step-down regulator: 3-5.5V input, 1A output, 3MHz switching, SOT-23-5. Active, RoHS non-compliant. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Bulk","Function":"Step-Down","Topology":"Buck","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"SC-74A, SOT-753","lifecycle_stage":"eol_hot","Current - Output":"1A","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"3MHz","Operating Temperature":"-40°C ~ 125°C (TJ)","Synchronous Rectifier":"No","Voltage - Input (Max)":"5.5V","Voltage - Input (Min)":"3V","Voltage - Output (Max)":"4.5V","Supplier Device Package":"SOT-23-5","Voltage - Output (Min/Fixed)":"0.6V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6","priceTiers":[{"qty":498,"price":"$0.60000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/405e024ac373a8c51932c63e23602166.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM2830ZMFX/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does Texas Instruments provide for LM2830ZMFX?","answer":"Texas Instruments provides a datasheet, application notes, and a RoHS non-compliant material declaration. The part is not UL or IEC certified as a discrete component — those certifications apply to the end-equipment, not the regulator IC itself. REACH compliance data is available on request through the TI compliance portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM2830ZMFX","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM2830ZMFX 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}}