{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LT3055MPMSE-5#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LT3055MPMSE-5PBF","canonicalUrl":"https://icboms.com/analog-devices/LT3055MPMSE-5PBF","factsUrl":"https://icboms.com/api/mcp/products/LT3055MPMSE-5%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LT3055MPMSE-5#PBF LDO voltage regulator, fixed 5V output, 500mA, 66dB PSRR (120Hz), -55°C to 150°C, 16-MSOP-EP exposed pad, tube.","salesMarkdown":"## Active production — still a current BOM line The LT3055MPMSE-5#PBF: This is a current-production part, not a discontinued or NRND line that would force a board spin. ## 5 V fixed rail at 500 mA — what the ratings mean for fit This is a single-output positive LDO regulator with a fixed 5 V output and a 500 mA current rating. The 45 V maximum input gives wide headroom for unregulated supplies or 24 V industrial rails — a common bus in factory automation panels. Dropout voltage is 0.59 V max at the full 500 mA load, so the input rail must stay above 5.59 V to maintain regulation. Below that threshold the output follows the input minus dropout — the part does not fold back gracefully, so budget the headroom. Quiescent current is 130 µA typical, which keeps the part viable for always-on or battery-backed rails where the regulator's own draw matters for standby power budgets. The 66 dB power-supply rejection ratio at 120 Hz directly addresses the dominant ripple frequency from a full-wave rectified mains supply. That is roughly 2000:1 attenuation — a 1 V pk-pk ripple on the input becomes about 0.5 mV at the output. For sensitive analog front-ends or ADC reference rails this keeps the supply noise below the converter's LSB. The operating junction temperature range spans -55°C to 150°C, which is the military-grade band. The 150°C absolute maximum junction means the thermal design must keep Tj below that under full load and worst-case ambient. ## 16-MSOP-EP — package and thermal pad The part comes in a 16-lead TFSOP with an exposed pad (3.00 mm width), also referred to as 16-MSOP-EP. The tube packaging means it ships in a stick, not tape-and-reel, so pick-and-place feeders need a tube adapter or a tray conversion. ## Control and protection features On-chip control features include current limit, enable, power good output, and soft start. The protection suite covers over-current, over-temperature, and reverse polarity — the reverse-polarity clamp is useful for systems where the input connector can be miswired, as it prevents damage without an external series diode that would add dropout voltage.","metaTitle":"LT3055MPMSE-5#PBF LDO Regulator, 5V 500mA, 66dB PSRR","metaDescription":"Analog Devices LT3055MPMSE-5#PBF LDO, fixed 5V output at 500mA, 66dB PSRR at 120Hz, -55°C to 150°C, 16-MSOP-EP. Active production, available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"PSRR":"66dB (120Hz)","Package":"Tube","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"16-TFSOP (0.118\\\", 3.00mm Width) Exposed Pad","lifecycle_stage":"eol_hot","Control Features":"Current Limit, Enable, Power Good, Soft Start","Current - Output":"500mA","Protection Features":"Over Current, Over Temperature, Reverse Polarity","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-55°C ~ 150°C","Voltage - Input (Max)":"45V","Voltage Dropout (Max)":"0.59V @ 500mA","Current - Supply (Max)":"25 mA","Supplier Device Package":"16-MSOP-EP","Current - Quiescent (Iq)":"130 µA","Voltage - Output (Min/Fixed)":"5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$14.97","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$15.72000","currency":"USD"},{"qty":10,"price":"$14.44300","currency":"USD"},{"qty":25,"price":"$13.84480","currency":"USD"},{"qty":100,"price":"$12.19830","currency":"USD"},{"qty":250,"price":"$11.59960","currency":"USD"},{"qty":500,"price":"$10.85122","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is LT3055MPMSE-5#PBF's PSRR rating and why does it matter?","answer":"The listed PSRR is 66 dB at 120 Hz. This is the attenuation of ripple from a full-wave rectified mains supply — a 1 V pk-pk input ripple becomes roughly 0.5 mV at the output, which keeps supply noise below the LSB of many ADCs or precision analog circuits."},{"question":"What compliance documentation does Analog Devices provide for LT3055MPMSE-5#PBF?","answer":"The part is ROHS3 Compliant per the manufacturer's listing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LT3055MPMSE-5PBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LT3055MPMSE-5PBF when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}