{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM2727MTCX/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM2727MTCX-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM2727MTCX-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM2727MTCX%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM2727MTCX/NOPB step-down buck controller, 4.5V-5.5V supply, 50kHz-2MHz switching, synchronous rectification, 14-TSSOP, Tape & Reel.","salesMarkdown":"## Buck controller with synchronous rectification The Texas Instruments LM2727MTCX/NOPB is a step-down (buck) PWM controller that drives external N-channel MOSFETs in a synchronous rectifier topology. The 50kHz to 2MHz switching range lets the designer trade inductor size against switching losses — lower frequency for higher efficiency in a larger footprint, or 2MHz to shrink the magnetics at the cost of FET gate-drive losses. Supply voltage is 4.5V to 5.5V, so it needs a regulated 5V rail — not a wide-input part. The 90% max duty cycle leaves headroom when the input dips toward the output target; below that the controller skips pulses. ## Control features and protection Built-in current limit, enable, frequency control, power-good flag, and soft start cover the usual protection and sequencing needs. The soft start prevents output overshoot on power-up; power-good signals the downstream load that the rail is within regulation. ## 14-TSSOP package and mounting Housed in a 14-lead TSSOP (4.40mm body width), the part is surface-mount only. The fine-pitch leads demand a controlled soldering profile and careful PCB layout — the switching node and gate-drive traces need short, low-inductance paths to the external FETs. Supplied in Tape & Reel for production pick-and-place; Cut Tape quantities are available for prototyping. ROHS3 compliant, so it ships into EU and other restricted-material markets without exemption paperwork.","metaTitle":"Texas Instruments LM2727MTCX/NOPB Buck Controller","metaDescription":"Texas Instruments LM2727MTCX/NOPB step-down buck controller, 4.5V-5.5V supply, 50kHz-2MHz switching, synchronous rectification, 14-TSSOP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","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":"$2.57","priceTiers":[{"qty":1,"price":"$2.57000","currency":"USD"},{"qty":10,"price":"$2.31200","currency":"USD"},{"qty":25,"price":"$2.18080","currency":"USD"},{"qty":100,"price":"$1.85820","currency":"USD"},{"qty":250,"price":"$1.74476","currency":"USD"},{"qty":500,"price":"$1.52666","currency":"USD"},{"qty":1000,"price":"$1.26495","currency":"USD"},{"qty":2500,"price":"$1.23450","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/4b3823d6ae4614371f7c71fab2005d36.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM2727MTCX%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative to LM2727MTCX/NOPB?","answer":"The LM25117PMHX/NOPB is a similar buck controller from TI, also in a 14-TSSOP package with synchronous rectification. The key difference is supply voltage: the LM25117 runs from 4.5V to 42V, while the LM2727 is limited to 4.5V-5.5V. They are not pin-compatible — a board spin is required to swap between them."},{"question":"What compliance documentation does Texas Instruments provide for LM2727MTCX/NOPB?","answer":"The part is ROHS3 compliant. Texas Instruments provides a datasheet, application notes, and a PCN (product change notification) history. No UL or IEC certification is listed for this controller — those standards typically apply to the end equipment, not the IC itself."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM2727MTCX-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/LM2727MTCX-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}}