{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM2937ESX-5.0","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM2937ESX-5.0","canonicalUrl":"https://icboms.com/texas-instruments/LM2937ESX-5.0","factsUrl":"https://icboms.com/api/mcp/products/LM2937ESX-5.0","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM2937ESX-5.0, fixed 5V positive LDO regulator, 500mA output, 1V max dropout at 50mA, TO-263-4 (D²Pak) surface-mount package, -40°C to 125°C operating temperature.","salesMarkdown":"## Fixed 5V rail for harsh environments The LM2937ESX-5.0 is a fixed 5V positive-output LDO regulator from Texas Instruments, rated for 500 mA continuous output. The 1V maximum dropout at 50 mA means the input rail needs to stay above 6V to hold regulation; at full 500 mA load the dropout will be higher, so budget at least 1.5V headroom for a clean 5V bus. ## Protection set: OTP, reverse polarity, short-circuit On-chip protection includes over-temperature shutdown, reverse-polarity blocking, and short-circuit current limiting — three features that reduce external clamp diodes and fuses in a rugged supply design. Quiescent current is 2 mA typical, and the maximum supply current is 20 mA — the part does not shut down into micro-power sleep, so it is better suited to always-on linear rails than to battery-powered standby domains. For a new-design BOM, look at TI's current-generation fixed 5V LDOs in the same TO-263 footprint — the LM2940 series or TPS7A47 family — but confirm pin compatibility and dropout voltage against your load current before substituting.","metaTitle":"LM2937ESX-5.0 LDO Regulator, Fixed 5V, 500mA, NRND","metaDescription":"LM2937ESX-5.0 fixed 5V LDO, 500mA output, 1V dropout at 50mA, -40°C to 125°C, TO-263 package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","PSRR":"-","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","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)":"5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.9600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/fde2ea9d87633116f7579b8ea9d1fc83.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM2937ESX-5.0/alternatives.json"},"ai":{"faq":[{"question":"What is the lifecycle status of LM2937ESX-5.0?","answer":"It remains available for existing production runs but is not being qualified into new designs. No direct pin-compatible successor from TI is listed for this fixed 5V variant."},{"question":"Can LM2937ESX-5.0 replace LM2937ESX-3.3?","answer":"No — the output voltage is fixed. The LM2937ESX-5.0 outputs 5V, while the LM2937ESX-3.3 outputs 3.3V. They share the same package and pinout, but the output voltage is set internally and cannot be changed. If your design needs 3.3V, order the -3.3 variant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM2937ESX-5.0","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM2937ESX-5.0 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}}