{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LT1963AET-3.3#06PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LT1963AET-3.306PBF","canonicalUrl":"https://icboms.com/analog-devices/LT1963AET-3.306PBF","factsUrl":"https://icboms.com/api/mcp/products/LT1963AET-3.3%2306PBF","rawCanonicalId":null},"summary":{"shortDescription":"Linear Technology LT1963AET-3.3#06PBF, positive fixed 3.3V LDO regulator, 1.5A output, 0.55V dropout at 1.5A, 63dB PSRR at 120Hz, -40°C to 125°C, TO-220-5 Flow 6 through-hole package.","salesMarkdown":"## Fixed 3.3 V LDO in a through-hole TO-220-5 The Linear Technology LT1963AET-3.3#06PBF is a single-output positive fixed 3.3 V low-dropout linear regulator rated for 1.5 A continuous output. It comes in a TO-220-5 through-hole package (Flow 6 variant), which suits benchtop supplies, industrial control boards, and power stages where a soldered or socketed through-hole part is preferred over surface-mount. The fixed 3.3 V output eliminates the need for external resistor dividers, simplifying the BOM for a dedicated 3.3 V rail. ## Dropout voltage and PSRR — what they mean for the rail Maximum dropout voltage is 0.55 V at 1.5 A load, so a 3.85 V input holds the 3.3 V output in regulation through brownout or cold-crank conditions. The 63 dB PSRR at 120 Hz provides meaningful ripple rejection from a rectified mains supply — useful when this LDO follows a bulk capacitor rather than a switching preregulator. Quiescent current is 1.5 mA typical, rising to 120 mA max under heavy load, which is typical for a 1.5 A LDO but worth budgeting in battery-powered designs. ## Industrial temperature grade and protection set Rated for -40°C to 125°C operating junction temperature, this part fits outdoor telecom cabinets, engine-bay electronics, and factory-floor motor drives. Built-in protection includes over-current, over-temperature, and reverse polarity — the reverse polarity clamp is a practical safeguard when the input rail can be miswired. An enable pin (active high) lets the system shut down the regulator for sequenced power-up or low-power standby. ## Lifecycle and sourcing The LT1963AET-3.3#06PBF carries an active lifecycle status and is RoHS3 compliant.","metaTitle":"LT1963AET-3.3#06PBF LDO Regulator, Fixed 3.3V, 1.5A","metaDescription":"Linear Technology LT1963AET-3.3#06PBF positive fixed 3.3V LDO, 1.5A output, 0.55V dropout at full load, 63dB PSRR at 120Hz, -40°C to 125°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"PSRR":"63dB (120Hz)","Package":"Tube","Output Type":"Fixed","Mounting Type":"Through Hole","Package / Case":"TO-220-5","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"1.5A","Protection Features":"Over Current, Over Temperature, Reverse Polarity","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C","Voltage - Input (Max)":"20V","Voltage Dropout (Max)":"0.55V @ 1.5A","Current - Supply (Max)":"120 mA","Supplier Device Package":"TO-220-5 Flow 6","Current - Quiescent (Iq)":"1.5 mA","Voltage - Output (Min/Fixed)":"3.3V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.76","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$7.09000","currency":"USD"},{"qty":10,"price":"$6.40600","currency":"USD"},{"qty":50,"price":"$6.10800","currency":"USD"},{"qty":100,"price":"$5.30350","currency":"USD"},{"qty":250,"price":"$5.06516","currency":"USD"},{"qty":500,"price":"$4.61822","currency":"USD"},{"qty":1000,"price":"$4.02232","currency":"USD"},{"qty":2500,"price":"$3.87335","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/59df79300662c461292fc8a9803aa517.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is LT1963AET-3.3#06PBF RoHS and lead-free compliant?","answer":"Yes, it is RoHS3 compliant."},{"question":"When sourcing LT1963AET-3.3#06PBF, what's the closest functional second-source?","answer":"The ADP7105ARDZ-3.3 is a functional alternative (fixed 3.3 V, 500 mA, surface-mount) but differs in package and output current — not a pin-compatible drop-in."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LT1963AET-3.306PBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LT1963AET-3.306PBF when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}