{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM317AMDT/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM317AMDT-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM317AMDT-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM317AMDT%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM317AMDT/NOPB, adjustable positive voltage regulator, 1.5 A output, 40 V input max, 1.25 V to 37 V output range, PSRR 80 dB ~ 65 dB at 120 Hz, TO-252-3 surface-mount, -40°C to 125°C.","salesMarkdown":"## TO-252 surface-mount adjustable regulator — 1.5 A continuous The Texas Instruments LM317AMDT/NOPB is a three-terminal adjustable positive voltage regulator in a TO-252-3 (DPak) surface-mount package, rated for 1.5 A output current and a 40 V maximum input. It delivers an adjustable output from 1.25 V up to 37 V, set by two external resistors — the classic LM317 architecture in a footprint that suits automated assembly and moderate power dissipation. ## PSRR and ripple rejection at line frequency Power-supply rejection ratio is listed at 80 dB to 65 dB at 120 Hz — the higher figure at light loads, the lower at full 1.5 A output. For a 1 V peak-to-peak ripple on the input at 120 Hz, the output ripple is roughly 100 µV to 560 µV, depending on load. That is clean enough for most analog and mixed-signal rails; if you need better rejection above a few kilohertz, a post-filter or an LDO with higher bandwidth is warranted. ## Protection suite — over-current, over-temperature, short-circuit Built-in over-current limiting, thermal shutdown, and short-circuit protection mean the regulator survives output faults without external clamp diodes in most designs. The quiescent current is 10 mA typical, which matters for always-on or battery-backed rails.","metaTitle":"LM317AMDT/NOPB Adjustable Positive Regulator, 1.5 A, TO-252","metaDescription":"Texas Instruments LM317AMDT/NOPB adjustable positive voltage regulator, 1.5 A output, 40 V input max, PSRR 80 dB ~ 65 dB at 120 Hz, TO-252-3 surface-mount.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","PSRR":"80dB ~ 65dB (120Hz)","Series":"-","Package":"Tube","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"TO-252-3, DPak (2 Leads + Tab), SC-63","Product Status":"Active","lifecycle_stage":"eol_hot","Control Features":"-","Current - Output":"1.5A","Base Product Number":"LM317","Protection Features":"Over Current, Over Temperature, Short Circuit","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C~125°C","Voltage - Input (Max)":"40V","Voltage Dropout (Max)":"-","Voltage - Output (Max)":"37V","Supplier Device Package":"TO-252-3","Current - Quiescent (Iq)":"10 mA","Voltage - Output (Min/Fixed)":"1.25V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.9200","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/173f3d20b70e5ad47e70de74c614263c.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM317AMDT%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"What is the output current of LM317AMDT/NOPB?","answer":"The LM317AMDT/NOPB is rated for 1.5 A continuous output current. This is the maximum guaranteed over the operating temperature range with adequate heatsinking."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM317AMDT-NOPB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM317AMDT-NOPB 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}}