{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM25148RGYR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM25148RGYR","canonicalUrl":"https://icboms.com/texas-instruments/LM25148RGYR","factsUrl":"https://icboms.com/api/mcp/products/LM25148RGYR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM25148RGYR, 42V Synchronous Buck DC/DC Controller, Step-Down, 1 Output, 100kHz-2.2MHz, 3.5V-42V Supply, 24-VFQFN Exposed Pad, -40°C to 125°C.","salesMarkdown":"## What the ratings mean for the BOM Switching frequency from 100 kHz to 2.2 MHz lets you trade inductor size for switching loss. At 2.2 MHz you shrink the magnetics but pay more in FET gate-drive loss; at 100 kHz you get better efficiency but need a larger inductor. The clock sync input lets you lock the switcher to a system clock or another converter, keeping the noise spectrum deterministic — helpful when the switcher feeds a sensitive analog rail. The -40°C to 125°C range is the full operating junction temperature. That qualifies it for engine-bay electronics, outdoor base stations, and factory-floor controllers. Control features include current limit, Power Good, soft start, and ramp control. Power Good gives a clean reset signal to a downstream FPGA or MCU; soft start limits inrush on the output cap. The ramp control pin lets you adjust the internal slope compensation — useful when the output capacitor ESR is very low (ceramic-only output). ## Lifecycle and sourcing reality The LM25148RGYR is listed as Active and ROHS3 compliant. This part is a current-production, standard-shelf item from Texas Instruments.","metaTitle":"TI LM25148RGYR Synchronous Buck DC/DC Controller, 42V","metaDescription":"LM25148RGYR 42V synchronous buck controller from TI. Step-down topology, 3.5V-42V input, 100kHz-2.2MHz, -40°C to 125°C. Active, ROHS3.","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","Clock Sync":"Yes","Output Type":"Transistor Driver","Mounting Type":"Surface Mount","Output Phases":"1","Package / Case":"24-VFQFN Exposed Pad","lifecycle_stage":"eol_hot","Control Features":"Current Limit, Power Good, Ramp, Soft Start","Duty Cycle (Max)":"100%","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"100kHz ~ 2.2MHz","Operating Temperature":"-40°C ~ 125°C","Synchronous Rectifier":"Yes","Supplier Device Package":"24-VQFN (5.5x3.5)","Voltage - Supply (Vcc/Vdd)":"3.5V ~ 42V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.93","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.93000","currency":"USD"},{"qty":10,"price":"$2.63500","currency":"USD"},{"qty":25,"price":"$2.49080","currency":"USD"},{"qty":100,"price":"$2.15860","currency":"USD"},{"qty":250,"price":"$2.04788","currency":"USD"},{"qty":500,"price":"$1.83756","currency":"USD"},{"qty":1000,"price":"$1.54974","currency":"USD"},{"qty":3000,"price":"$1.47226","currency":"USD"},{"qty":6000,"price":"$1.41691","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/92f43d939731d70ad12c2d5fd314348f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is LM25148RGYR available via RFQ confirmation?","answer":"Stock levels change daily. The part is sourced to order against an RFQ; submit a request for current availability and lead-time confirmation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM25148RGYR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM25148RGYR 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}}