{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM5157QRTERQ1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM5157QRTERQ1","canonicalUrl":"https://icboms.com/texas-instruments/LM5157QRTERQ1","factsUrl":"https://icboms.com/api/mcp/products/LM5157QRTERQ1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments Automotive, AEC-Q100 series, Step-Up/Step-Down regulator, LM5157QRTERQ1, 6.5A switch, 1.5-45V input, 48V output, 16-WQFN 3x3.","salesMarkdown":"## 6.5A switch in a 3x3 QFN — automotive-grade power stage The LM5157QRTERQ1 is a current-mode boost controller with an integrated 6.5A switch, qualified to AEC-Q100 Grade 0 with a junction temperature range of -40°C to 150°C. It supports boost, flyback, and SEPIC topologies from a single 1.5V to 45V input rail, making it suitable for automotive battery-fed rails that must survive cold-crank dips and load-dump transients. ## Wide input range and adjustable output up to 48V Input voltage spans 1.5V minimum to 45V maximum — the 1.5V floor lets the part start from a single-cell Li-ion or a deeply discharged lead-acid battery, while the 45V ceiling covers 12V and 24V automotive systems with margin for load-dump clamping. Output is adjustable from 1.5V up to 48V, so a single BOM line can serve a 3.3V pre-regulator, a 12V auxiliary rail, or a 48V PoE bus. Switching frequency is programmable from 100 kHz to 2.2 MHz — the lower end suits flyback designs where transformer size is less critical, while the upper end shrinks the inductor footprint for space-constrained ECU modules. Synchronous rectification is built in, which improves efficiency at higher output currents compared to a diode-based flyback. ## Active production — no last-time-buy pressure The 16-WQFN package (3x3 mm) with exposed pad requires a thermal land pattern on the PCB for adequate heat dissipation. The exposed pad must be soldered to a copper plane; the datasheet's recommended footprint and stencil aperture are the reference for the reflow profile.","metaTitle":"LM5157QRTERQ1 Texas Instruments Boost/Flyback/SEPIC, 6.5A","metaDescription":"Texas Instruments LM5157QRTERQ1 automotive AEC-Q100 boost/flyback/SEPIC regulator, 6.5A switch, 1.5-45V input, 48V output. Active production, quoted to order.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100","packageCase":null,"mountingType":null,"rohsStatus":"Not applicable","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Series":"Automotive, AEC-Q100","Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Step-Up, Step-Up/Step-Down","Topology":"Boost, Flyback, SEPIC","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"16-WFQFN Exposed Pad","lifecycle_stage":"eol_hot","Current - Output":"6.5A (Switch)","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"100kHz ~ 2.2MHz","Operating Temperature":"-40°C ~ 150°C (TJ)","Synchronous Rectifier":"Yes","Voltage - Input (Max)":"45V","Voltage - Input (Min)":"1.5V","Voltage - Output (Max)":"48V","Supplier Device Package":"16-WQFN (3x3)","Voltage - Output (Min/Fixed)":"1.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.45","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.45000","currency":"USD"},{"qty":10,"price":"$4.00000","currency":"USD"},{"qty":25,"price":"$3.78160","currency":"USD"},{"qty":100,"price":"$3.27720","currency":"USD"},{"qty":250,"price":"$3.10920","currency":"USD"},{"qty":500,"price":"$2.78986","currency":"USD"},{"qty":1000,"price":"$2.35290","currency":"USD"},{"qty":3000,"price":"$2.23525","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/0c94d5edf4041845d020edd6fc8bd0d2.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How do I get current pricing and availability for LM5157QRTERQ1?","answer":"Pricing and stock levels are confirmed at quote time. Submit an RFQ against your BOM quantity — availability is verified against current distribution inventory and lead times."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM5157QRTERQ1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM5157QRTERQ1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}