{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BD3650FP-ME2","brand":"ROHM Semiconductor","brandSlug":"rohm","productSlug":"BD3650FP-ME2","canonicalUrl":"https://icboms.com/rohm/BD3650FP-ME2","factsUrl":"https://icboms.com/api/mcp/products/BD3650FP-ME2","rawCanonicalId":null},"summary":{"shortDescription":"ROHM Semiconductor BD3650FP-ME2 linear regulator, 5V fixed output, 300mA, TO-252-3 (DPak) surface-mount, 60dB PSRR at 120Hz, -40°C to 125°C operating temperature.","salesMarkdown":"## Package and board-fit for the BD3650FP-ME2 The exposed tab is the ground path and the primary thermal interface — the copper area under the tab on the PCB sets the junction-to-ambient thermal resistance. Mounting is surface-mount; the tab is soldered to the board pad, not bolted. The DPak footprint is standard — the same land pattern used for many power MOSFETs and regulators in this class, so the board layout is straightforward if the copper pour under the tab is sized for the dissipation. ## What the 60 dB PSRR means for your rail The 60 dB PSRR at 120 Hz means the regulator attenuates 120 Hz ripple (full-wave rectifier residue) by a factor of 1000. If the input has 100 mVpp of 120 Hz ripple, the output sees roughly 0.1 mVpp — clean enough for most analog front-ends and sensor supplies. At higher frequencies the PSRR rolls off, so upstream switching noise above a few kilohertz needs its own filter ahead of the LDO. The protection features — over-current and over-temperature — are built in. The over-current limit folds back the output current under a short, and the thermal shutdown trips when the die exceeds the safe junction temperature. These are not adjustable; they are there to keep the part from failing catastrophically under a fault. ## Active lifecycle and compliance documentation The supply current is 1 mA maximum — the quiescent draw is low enough for always-on rails in battery-backed systems. The 30 V maximum input voltage gives headroom for 24 V industrial rails and 12 V automotive systems with load-dump transients, as long as the transient stays below the abs-max.","metaTitle":"BD3650FP-ME2 LDO, 5V Fixed Output, 300mA, TO-252-3","metaDescription":"ROHM BD3650FP-ME2 linear regulator: 5V fixed output, 300mA, 60dB PSRR at 120Hz, 0.4V dropout at 200mA, -40 to 125°C. Active, ROHS3. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"PSRR":"60dB (120Hz)","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"TO-252-3, DPak (2 Leads + Tab), SC-63","lifecycle_stage":"eol_hot","Current - Output":"300mA","Protection Features":"Over Current, Over Temperature","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C (TA)","Voltage - Input (Max)":"30V","Voltage Dropout (Max)":"0.4V @ 200mA","Current - Supply (Max)":"1 mA","Supplier Device Package":"TO-252-3","Voltage - Output (Min/Fixed)":"5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.88","priceTiers":[{"qty":1,"price":"$2.88000","currency":"USD"},{"qty":10,"price":"$2.58400","currency":"USD"},{"qty":25,"price":"$2.43800","currency":"USD"},{"qty":100,"price":"$2.07720","currency":"USD"},{"qty":250,"price":"$1.95040","currency":"USD"},{"qty":500,"price":"$1.70660","currency":"USD"},{"qty":1000,"price":"$1.41404","currency":"USD"},{"qty":2000,"price":"$1.38000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/8f4bb695bf8e8d5b553d2200c5b75dd2.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BD3650FP-ME2/alternatives.json"},"ai":{"faq":[{"question":"What is the PSRR of the BD3650FP-ME2?","answer":"The PSRR is 60 dB at 120 Hz. This is the power-supply rejection ratio at the fundamental ripple frequency of a full-wave rectifier — the regulator attenuates that ripple by 1000:1."},{"question":"What package does the BD3650FP-ME2 come in?","answer":"The supplier device package is TO-252-3."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/rohm/BD3650FP-ME2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/rohm/BD3650FP-ME2 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}}