{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM3477MM/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM3477MM-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM3477MM-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM3477MM%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM3477MM/NOPB, step-down (buck/buck-boost) PWM controller, 500kHz switching frequency, 2.97V-35V supply, 8-VSSOP package, active production.","salesMarkdown":"## Switching controller for buck and buck-boost rails The LM3477MM/NOPB is a current-mode PWM controller for step-down (buck) and buck-boost topologies, driving an external transistor switch. Its 500 kHz fixed switching frequency lets the output inductor and capacitor shrink relative to a 100 kHz design, saving board area in a point-of-load rail. The 93 % maximum duty cycle keeps the output in regulation through low headroom — useful when the input sags close to the target output voltage. Operating temperature is rated -40 °C to 125 °C junction, which suits industrial enclosures and under-hood automotive compartments where ambient heat raises the die temperature above 85 °C. The 8-VSSOP package (3.00 mm width) fits tight layouts on multi-layer boards. ## Sourcing and compliance status It is RoHS3 compliant and free of the six restricted substances under EU Directive 2011/65/EU. No pin-compatible second-source or official successor is recorded in the TI portfolio.","metaTitle":"Texas Instruments LM3477MM/NOPB Buck Controller, 500kHz","metaDescription":"Active step-down controller IC, 2.97V-35V supply, 500kHz switching, 8-VSSOP. Sourced to order against RFQ through independent distribution. RoHS3 compliant.","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, Buck-Boost","Clock Sync":"No","Output Type":"Transistor Driver","Mounting Type":"Surface Mount","Output Phases":"1","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Control Features":"Enable","Duty Cycle (Max)":"93%","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"500kHz","Operating Temperature":"-40°C ~ 125°C (TJ)","Synchronous Rectifier":"No","Supplier Device Package":"8-VSSOP","Voltage - Supply (Vcc/Vdd)":"2.97V ~ 35V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.09","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.09000","currency":"USD"},{"qty":10,"price":"$2.77500","currency":"USD"},{"qty":25,"price":"$2.61840","currency":"USD"},{"qty":100,"price":"$2.23070","currency":"USD"},{"qty":250,"price":"$2.09456","currency":"USD"},{"qty":500,"price":"$1.83274","currency":"USD"},{"qty":1000,"price":"$1.51856","currency":"USD"},{"qty":2000,"price":"$1.48200","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/96531a511c972ef118076d01cbf70677.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How can I order the LM3477MM/NOPB or check current availability?","answer":"The LM3477MM/NOPB is an active TI part sourced through independent distribution. No stock-holding or lead-time number is published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM3477MM-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/LM3477MM-NOPB 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}}