{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM337T/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM337T-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM337T-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM337T%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM337T/NOPB, adjustable negative voltage regulator, 1.5 A output, -1.2 V to -37 V range, 77 dB PSRR at 120 Hz, TO-220-3 through-hole package, 0°C to 125°C operating temperature.","salesMarkdown":"## 1.5 A adjustable negative rail — TO-220-3 It delivers up to 1.5 A output current over a -1.2 V to -37 V adjustable output range, with a maximum input voltage of -40 V. This is a typical figure for a 1970s-vintage three-terminal regulator design, adequate for most linear supplies but not a low-noise LDO replacement. The /NOPB suffix indicates lead-free (Pb-free) plating, compliant with RoHS requirements. On-chip protection includes over-temperature shutdown and short-circuit current limiting, covering the common fault modes in a linear regulator.","metaTitle":"LM337T/NOPB Texas Instruments Adjustable Negative Regulator","metaDescription":"Texas Instruments LM337T/NOPB adjustable negative voltage regulator, 1.5 A output, 77 dB PSRR at 120 Hz, TO-220-3 package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","PSRR":"77dB (120Hz)","Series":"-","Package":"Tube","Output Type":"Adjustable","Mounting Type":"Through Hole","Package / Case":"TO-220-3","Product Status":"Active","lifecycle_stage":"eol_hot","Control Features":"-","Current - Output":"1.5A","Base Product Number":"LM337","Protection Features":"Over Temperature, Short Circuit","Number of Regulators":"1","Output Configuration":"Negative","Operating Temperature":"0°C~125°C","Voltage - Input (Max)":"-40V","Voltage Dropout (Max)":"-","Voltage - Output (Max)":"-37V","Supplier Device Package":"TO-220-3","Voltage - Output (Min/Fixed)":"-1.2V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.2400","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/0778c63670ae2b9da77d4109fe26090b.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM337T%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"What is the output current of LM337T/NOPB?","answer":"The LM337T/NOPB is rated for 1.5 A output current. This is the continuous current capability at the output pin, limited by the TO-220-3 package thermal dissipation."},{"question":"What is the difference between LM337 and LM317?","answer":"The LM337 is the negative-voltage complement to the LM317 positive regulator. The LM337T/NOPB regulates a negative input rail down to a negative adjustable output, while the LM317 handles positive rails. Both share the same three-terminal adjustable topology and 1.5 A output rating, but the pinout and polarity are reversed."},{"question":"Can LM337T/NOPB be used as a current source?","answer":"Yes, the LM337T/NOPB can be configured as a constant-current source by placing a resistor between the output and adjust terminals. The output current is set by Iout = 1.25 V / R, with the same topology used for the LM317 positive current source. The 1.5 A output rating sets the upper current limit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM337T-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/LM337T-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}}