{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM51231QRGRRQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM51231QRGRRQ1","canonicalUrl":"https://icboms.com/texas-instruments/LM51231QRGRRQ1","factsUrl":"https://icboms.com/api/mcp/products/LM51231QRGRRQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM51231QRGRRQ1, Automotive Grade, Synchronous Boost Controller, 1 Output, Transistor Driver, 100kHz ~ 2.2MHz, 0.8V ~ 42V Supply, -40°C ~ 125°C, 20-VQFN (3.5x3.5) Wettable Flank.","salesMarkdown":"## Active production, no LTB risk — current TI portfolio The part is ROHS3 compliant. ## Synchronous vs non-synchronous — the LM5150 alternative The LM5150QURUMRQ1 is a non-synchronous boost controller also AEC-Q100 qualified, but its 87% duty-cycle ceiling and lack of synchronous rectification mean it trades efficiency for a 150°C junction rating. The LM51231QRGRRQ1 wins where thermal budget is tight and the ambient stays within 125°C; the LM5150 extends the temperature headroom for exhaust-adjacent or turbocharger-adjacent placements.","metaTitle":"TI LM51231QRGRRQ1 Automotive Boost Controller, AEC-Q100","metaDescription":"AEC-Q100 qualified synchronous boost controller. 0.8V-42V input, 98% duty cycle, 100kHz-2.2MHz switching. -40°C to 125°C. 20-VQFN wettable flank.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Grade":"Automotive","Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Step-Up","Topology":"Boost","Clock Sync":"Yes","Output Type":"Transistor Driver","Mounting Type":"Surface Mount, Wettable Flank","Output Phases":"1","Qualification":"AEC-Q100","Package / Case":"20-VFQFN Exposed Pad","lifecycle_stage":"eol_hot","Duty Cycle (Max)":"98%","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"100kHz ~ 2.2MHz","Operating Temperature":"-40°C ~ 125°C (TA)","Synchronous Rectifier":"Yes","Supplier Device Package":"20-VQFN (3.5x3.5)","Voltage - Supply (Vcc/Vdd)":"0.8V ~ 42V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.26","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.26000","currency":"USD"},{"qty":10,"price":"$3.82900","currency":"USD"},{"qty":25,"price":"$3.62000","currency":"USD"},{"qty":100,"price":"$3.13740","currency":"USD"},{"qty":250,"price":"$2.97652","currency":"USD"},{"qty":500,"price":"$2.67082","currency":"USD"},{"qty":1000,"price":"$2.25250","currency":"USD"},{"qty":3000,"price":"$2.13988","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/1c07e56983fb7c9db221f20ce06c9bb2.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is LM51231QRGRRQ1 RoHS compliant?","answer":"Yes. The part is ROHS3 compliant per the manufacturer's classification."},{"question":"What is the closest functional second-source for LM51231QRGRRQ1?","answer":"The LM5150QURUMRQ1 is a non-synchronous boost controller from TI with the same AEC-Q100 qualification and a wider 150°C junction rating, but it lacks synchronous rectification and has a lower 87% duty cycle. It is a functional alternative if the efficiency and duty-cycle trade-off is acceptable, not a pin-compatible drop-in."},{"question":"What are the operating specifications of LM51231QRGRRQ1?","answer":"It is a synchronous boost controller with one output, switching from 100kHz to 2.2MHz, operating from -40°C to 125°C ambient. The supply range is 0.8V to 42V, and the maximum duty cycle is 98%."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM51231QRGRRQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM51231QRGRRQ1 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}}