{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM2937ES-12-TI","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM2937ES-12-TI","canonicalUrl":"https://icboms.com/texas-instruments/LM2937ES-12-TI","factsUrl":"https://icboms.com/api/mcp/products/LM2937ES-12-TI","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM2937ES-12-TI, 12V fixed-output LDO, 500mA output, DDPAK/TO-263-3 surface-mount, -40°C to 125°C operating range, over-temp and short-circuit protection.","salesMarkdown":"## 12 V fixed rail for industrial and automotive loads It comes in a DDPAK/TO-263-3 surface-mount package — the tab is the output and needs a decent copper pour for thermal relief. ## Dropout and quiescent — the real-world numbers Maximum dropout is 1 V at 50 mA load. That means with a 13 V input you still get regulation at light load; at full 500 mA the dropout will be higher, so budget at least 14.5 V input to stay out of dropout. Input voltage max is 26 V — plenty of headroom for a nominal 24 V industrial supply or a 12 V battery charging at 14.4 V. ## Built-in protections cut external BOM Over-temperature, reverse polarity, and short-circuit protection are all on-chip. In a motor-drive or solenoid-heavy environment where the 12 V rail sees transients and accidental reverse-battery events, these save a Schottky diode and a PTC. The short-circuit protection folds back current, so the regulator survives a dead short without letting the magic smoke out.","metaTitle":"LM2937ES-12-TI 12V Fixed 500mA LDO, DDPAK, -40 to 125°C","metaDescription":"Texas Instruments LM2937ES-12-TI: 12V fixed-output LDO, 500mA, DDPAK/TO-263-3, -40°C to 125°C, over-temp/short-circuit protection.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","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":"Active","lifecycle_stage":"eol_hot","Control Features":"-","Current - Output":"500mA","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)":"12V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM2937ES-12-TI/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LM2937ES-12-TI in this component family?","answer":"The LM2937ET-12 is a through-hole TO-220 variant with the same 12 V fixed output and 500 mA rating. The pinout differs — the DDPAK tab is output, while the TO-220 tab is ground — so they are not drop-in replacements."},{"question":"Can I use LM2937ES-12-TI in automotive (or high-temperature) environments?","answer":"Yes. The DDPAK package with its exposed tab handles the thermal dissipation for 500 mA loads in those environments, provided the PCB copper area is adequate."},{"question":"Does LM2937ES-12-TI require external capacitors for stability?","answer":"Yes, like most LDOs it needs input and output capacitors for stability. The datasheet (not included in this listing) specifies typical values — an output capacitor with low ESR is recommended to maintain phase margin. The protection features (over-temp, short-circuit) are internal and do not require external components."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM2937ES-12-TI","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-12-TI 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}}