{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM7805CT/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM7805CT-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM7805CT-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM7805CT%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM7805CT/NOPB fixed 5V linear regulator, 1.5A output, TO-220-3 through-hole package, 80dB PSRR at 120Hz, over-current and thermal protection.","salesMarkdown":"## 1.5A fixed 5V rail — the 7805 that defined the standard The Texas Instruments LM7805CT/NOPB is the through-hole 7805 that set the benchmark for 5V linear regulation. It delivers a fixed 5V output at 1.5A continuous from a TO-220-3 package — the same pinout and footprint that has been the default 5V rail for four decades. The 35V maximum input covers 12V, 24V, and even unregulated rectified supplies up to 30V with margin. ## 80dB ripple rejection — why this matters for analog supplies The 80dB PSRR at 120Hz is the key spec for anyone feeding this regulator from a full-wave rectified supply. 80dB means the 120Hz ripple on the input is attenuated by a factor of 10,000 — a 1Vpp ripple at the input becomes 100µVpp at the output. This is why the 7805 has been the go-to for powering op-amps, ADCs, and other analog circuits that would otherwise couple line-frequency hum into the signal chain. The dropout voltage is 2V maximum at 1A load. This sets the minimum input voltage for regulation at 7V (5V + 2V). Below that, the output follows the input minus the dropout — the regulator drops out of regulation. ## Built-in protection suite — over-current, thermal, short-circuit Three protection features are integrated: over-current limiting folds back the output current during a fault, over-temperature shutdown protects the die at ~165°C junction, and short-circuit protection limits the fault current without destroying the pass transistor. This means the regulator survives a sustained output short without external protection diodes in most applications. The quiescent current is 6 mA — this is the ground pin current that flows regardless of load. At light loads (10 mA), the regulator's own draw is significant; at 1A load it's negligible. The 0°C to 125°C operating junction temperature range is the commercial grade; the actual ambient ceiling depends on the heatsink and power dissipation. ## Active production — sourcing and compliance The part is ROHS3 Compliant and carries the NOPB (lead-free) finish.","metaTitle":"Texas Instruments LM7805CT/NOPB 5V 1.5A Linear Regulator","metaDescription":"Texas Instruments LM7805CT/NOPB fixed 5V output linear regulator, 1.5A, TO-220-3. PSRR 80dB at 120Hz. Active production, ROHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","PSRR":"80dB (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":"LM7805","Protection Features":"Over Current, Over Temperature, Short Circuit","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"0°C~125°C","Voltage - Input (Max)":"35V","Voltage Dropout (Max)":"2V @ 1A","Voltage - Output (Max)":"-","Supplier Device Package":"TO-220-3","Current - Quiescent (Iq)":"6 mA","Voltage - Output (Min/Fixed)":"5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.9700","priceTiers":[{"qty":1,"price":"$1.97000","currency":"USD"},{"qty":10,"price":"$1.76700","currency":"USD"},{"qty":25,"price":"$1.66680","currency":"USD"},{"qty":100,"price":"$1.42020","currency":"USD"},{"qty":250,"price":"$1.33348","currency":"USD"},{"qty":500,"price":"$1.16680","currency":"USD"},{"qty":1000,"price":"$0.96677","currency":"USD"},{"qty":2500,"price":"$0.94350","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/f3872e5e42c11c356e800e32f2654004.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM7805CT%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"What is the PSRR of the LM7805CT/NOPB?","answer":"The PSRR is 80dB at 120Hz. This means 120Hz ripple from a full-wave rectifier is attenuated by a factor of 10,000 — a 1Vpp ripple at the input becomes 100µVpp at the output, critical for powering analog circuits."},{"question":"What compliance documentation does Texas Instruments provide for the LM7805CT/NOPB?","answer":"The LM7805CT/NOPB is ROHS3 Compliant with a lead-free (NOPB) finish. Texas Instruments provides the standard RoHS declaration and material composition data through its documentation portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM7805CT-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/LM7805CT-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}}