{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM7905CT/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM7905CT-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM7905CT-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM7905CT%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM7905CT/NOPB, a fixed -5V negative linear regulator in a TO-220-3 through-hole package, rated for 1.5A output with 66dB PSRR at 120Hz and 1.1V max dropout at 1A.","salesMarkdown":"## Negative rail regulator for analog supplies The LM7905CT/NOPB is a fixed -5V output linear regulator from Texas Instruments, delivering up to 1.5A continuous current. It is the negative complement to the 7805 positive regulator, commonly used to generate a clean bipolar supply for op-amp circuits, ADC/DAC reference rails, and industrial control boards that need a symmetrical voltage pair. Key ratings include a PSRR of 66dB at 120Hz, which means it attenuates 120Hz full-wave rectifier ripple by a factor of 2000 — enough to keep the negative rail quiet for precision analog loads. The 1.1V maximum dropout at 1A sets the minimum input voltage at -6.1V for a regulated -5V output. ## Protection and quiescent current Built-in over-temperature and short-circuit protection allow the regulator to survive a momentary output short without damage — the die shuts down before the junction exceeds the safe limit. Quiescent current is 1 mA typical, which is the current the regulator consumes internally regardless of load; at light loads this adds to the total supply draw. ## Active production, TO-220-3 package","metaTitle":"LM7905CT/NOPB - Texas Instruments -5V 1.5A Negative Linear","metaDescription":"Active production -5V fixed output, 1.5A max, 66dB PSRR at 120Hz. TO-220-3 through-hole package. Over-temp and short-circuit protection. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","PSRR":"66dB (120Hz)","Series":"-","Package":"Tube","Output Type":"Fixed","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":"LM7905","Protection Features":"Over Temperature, Short Circuit","Number of Regulators":"1","Output Configuration":"Negative","Operating Temperature":"0°C~125°C","Voltage - Input (Max)":"-25V","Voltage Dropout (Max)":"1.1V @ 1A","Voltage - Output (Max)":"-","Supplier Device Package":"TO-220-3","Current - Quiescent (Iq)":"1 mA","Voltage - Output (Min/Fixed)":"-5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.6900","priceTiers":[{"qty":1,"price":"$1.69000","currency":"USD"},{"qty":10,"price":"$1.52200","currency":"USD"},{"qty":25,"price":"$1.43640","currency":"USD"},{"qty":100,"price":"$1.22370","currency":"USD"},{"qty":250,"price":"$1.14904","currency":"USD"},{"qty":500,"price":"$1.00540","currency":"USD"},{"qty":1000,"price":"$0.83305","currency":"USD"},{"qty":2500,"price":"$0.81300","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6f1c17adda5954a99317d1b49404ace8.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM7905CT%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"Is LM7905CT/NOPB equivalent to the standard LM7905 or other 7905 variants?","answer":"Yes — the LM7905CT/NOPB is functionally identical to the classic LM7905 in the same TO-220-3 package. The /NOPB suffix indicates lead-free (ROHS3 compliant) plating. Any standard 7905 with the same pinout (GND, input, output) is a direct replacement as long as the current and dropout ratings match your load."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM7905CT-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/LM7905CT-NOPB when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}