{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM2737MTC","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM2737MTC","canonicalUrl":"https://icboms.com/texas-instruments/LM2737MTC","factsUrl":"https://icboms.com/api/mcp/products/LM2737MTC","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM2737MTC, Step-Down (Buck) Switching Controller, 1 Output, Transistor Driver, 50kHz to 2MHz, 14-TSSOP, Surface Mount, -40°C to 125°C.","salesMarkdown":"## What the LM2737MTC is and where it fits The Texas Instruments LM2737MTC is a voltage-mode buck (step-down) switching controller designed for single-output, positive-polarity supplies. It drives an external transistor pair and integrates synchronous rectification for higher efficiency in low-voltage rails. The controller operates from a 4.5 V to 5.5 V supply and switches between 50 kHz and 2 MHz, letting the designer tune inductor size against switching losses. Control features include current limit, enable, frequency control, a power-good flag, and soft-start — enough for sequenced power-up and fault handling in a compact 14-TSSOP footprint. ## Switching frequency range — what it means for the inductor and EMI The LM2737MTC covers 50 kHz to 2 MHz. At the low end you use a larger inductor but get lower core losses and less EMI headache; at 2 MHz the inductor shrinks and the ripple frequency moves above the AM band, but gate-drive losses and magnetic-core losses climb. The part does not synchronise to an external clock (no clock sync), so the frequency is set by an external resistor — make sure your layout keeps the timing node clean. ## Temperature grade and environment Rated for -40°C to 125°C junction temperature. The 90% maximum duty cycle gives headroom for low-dropout operation when the input sags close to the output target. ## Package and mounting Housed in a 14-lead TSSOP (4.40 mm width), the part is surface-mount only. The supplier device package is 14-TSSOP; the shipping form is Bulk (tube or tray). No special thermal pad — the junction-to-ambient path relies on the board copper. ## Lifecycle and sourcing The RoHS compliance status is non-compliant, so verify your assembly house's exemption tolerance if the BOM requires full RoHS.","metaTitle":"LM2737MTC Buck Controller, 50kHz-2MHz, 90% Duty Cycle","metaDescription":"LM2737MTC step-down switching controller from Texas Instruments. Active, 4.5V-5.5V supply, synchronous rectifier, -40°C to 125°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Bulk","Function":"Step-Down","Topology":"Buck","Clock Sync":"No","Output Type":"Transistor Driver","Mounting Type":"Surface Mount","Output Phases":"1","Package / Case":"14-TSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Control Features":"Current Limit, Enable, Frequency Control, Power Good, Soft Start","Duty Cycle (Max)":"90%","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"50kHz ~ 2MHz","Operating Temperature":"-40°C ~ 125°C (TJ)","Synchronous Rectifier":"Yes","Supplier Device Package":"14-TSSOP","Voltage - Supply (Vcc/Vdd)":"4.5V ~ 5.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.35","stockQuantity":0,"priceTiers":[{"qty":222,"price":"$1.35000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/d8ce1126d7ebddb6fc5d2b411d63bd5a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does the LM2737MTC use synchronous rectification?","answer":"Yes, the LM2737MTC supports synchronous rectification, which improves efficiency by replacing the freewheeling diode with a second MOSFET."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM2737MTC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM2737MTC when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}