{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM2937ES-15","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM2937ES-15","canonicalUrl":"https://icboms.com/texas-instruments/LM2937ES-15","factsUrl":"https://icboms.com/api/mcp/products/LM2937ES-15","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM2937ES-15, 15V fixed-output LDO voltage regulator, 500mA, 26V input max, 1V dropout at 50mA, DDPAK/TO-263-3, -40°C to 125°C.","salesMarkdown":"## 15V fixed LDO for industrial rails The LM2937ES-15: It is designed for industrial and automotive-adjacent systems that need a clean, regulated 15V rail from an unregulated or higher-voltage supply — think motor-drive bias supplies, relay coil drivers, or sensor front-end power in factory automation. ## Dropout and quiescent — the real-world margins Budget at least 2V headroom between the input rail and the 15V output to stay in regulation across temperature and load. Quiescent current is 2 mA typical, rising to 20 mA max under supply current — this matters for always-on or battery-backed rails where the Iq eats into standby budget. ## Package and thermal — D²Pak layout notes Without that copper area, the 500mA output at high input-output differential will push the junction above 125°C quickly. The three-lead D²Pak footprint is shared with many TO-263 fixed regulators, but the pinout (input, ground, output, tab = output) is standard for this family. ## Protection features — built-in ruggedness Over-temperature shutdown, reverse polarity protection, and short-circuit current limiting are integrated — no external clamp diodes or crowbar circuits needed for basic fault tolerance. In a 24V industrial supply environment where reverse-battery events happen during harness swaps, the reverse polarity protection saves a board spin. ## NRND status — plan the BOM transition This means Texas Instruments will continue to manufacture it for existing production orders but does not recommend it for new designs. For new BOMs, evaluate pin-compatible 15V fixed LDOs in TO-263 from other vendors; for existing production, secure last-time-buy quantities or transition to a qualified alternate during the next board revision.","metaTitle":"Texas Instruments LM2937ES-15 Voltage Regulator, 15V Fixed","metaDescription":"Texas Instruments LM2937ES-15 is a 15V fixed-output LDO voltage regulator rated for 500mA. Industrial temp range -40°C to 125°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","PSRR":"-","Series":"-","Package":"Tube","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"TO-263-4, D²Pak (3 Leads + Tab), TO-263AA","Product Status":"Not For New Designs","lifecycle_stage":"eol_hot","Control Features":"-","Current - Output":"500mA","Base Product Number":"LM2937","Protection Features":"Over Temperature, Reverse Polarity, Short Circuit","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C~125°C","Voltage - Input (Max)":"26V","Voltage Dropout (Max)":"1V @ 50mA","Current - Supply (Max)":"20 mA","Voltage - Output (Max)":"-","Supplier Device Package":"DDPAK/TO-263-3","Current - Quiescent (Iq)":"2 mA","Voltage - Output (Min/Fixed)":"15V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.4597","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/fde2ea9d87633116f7579b8ea9d1fc83.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM2937ES-15/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM2937ES-15","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM2937ES-15 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}