{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BD33HA3MEFJ-ME2","brand":"ROHM Semiconductor","brandSlug":"rohm","productSlug":"BD33HA3MEFJ-ME2","canonicalUrl":"https://icboms.com/rohm/BD33HA3MEFJ-ME2","factsUrl":"https://icboms.com/api/mcp/products/BD33HA3MEFJ-ME2","rawCanonicalId":null},"summary":{"shortDescription":"ROHM BD33HA3MEFJ-ME2, Automotive AEC-Q100 LDO Regulator, Fixed 3.3V Output, 300mA, 8-SOIC Exposed Pad, -40°C to 105°C.","salesMarkdown":"## Automotive-grade 3.3V rail: the BD33HA3MEFJ-ME2 The ROHM BD33HA3MEFJ-ME2 is a single-output, positive-voltage, fixed 3.3 V LDO regulator rated for 300 mA continuous output. The device integrates over-current, over-temperature, and soft-start protection, reducing external monitoring circuitry. Enable control is provided on-chip, allowing the regulator to be gated by a system supervisor or ignition signal. ## Dropout margin at full load Maximum dropout is specified at 1.2 V with the full 300 mA load. That means a 4.5 V pre-regulator rail (or a battery bus during cold-crank) still holds the 3.3 V output within regulation. For designs running near the 8 V input maximum, the dropout is effectively irrelevant, but the margin matters in start-stop automotive profiles where the supply dips below 5 V. The device is housed in an 8-SOIC (3.90 mm width) with an exposed pad (8-HTSOP-J). ROHS3 compliant. The series is flagged as Automotive, AEC-Q100, so the part is released under automotive change-notification and PPAP requirements.","metaTitle":"BD33HA3MEFJ-ME2 LDO Regulator, 3.3V Fixed Output, 300mA","metaDescription":"ROHM BD33HA3MEFJ-ME2 is an automotive-grade (AEC-Q100) LDO regulator offering a fixed 3.3V output at 300mA. Active lifecycle, -40°C to 105°C.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Series":"Automotive, AEC-Q100","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width) Exposed Pad","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"300mA","Protection Features":"Over Current, Over Temperature, Soft Start","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 105°C","Voltage - Input (Max)":"8V","Voltage Dropout (Max)":"1.2V @ 300mA","Current - Supply (Max)":"1.2 mA","Supplier Device Package":"8-HTSOP-J","Voltage - Output (Min/Fixed)":"3.3V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.03","priceTiers":[{"qty":1,"price":"$1.03000","currency":"USD"},{"qty":10,"price":"$0.91800","currency":"USD"},{"qty":25,"price":"$0.87120","currency":"USD"},{"qty":100,"price":"$0.71550","currency":"USD"},{"qty":250,"price":"$0.66884","currency":"USD"},{"qty":500,"price":"$0.59106","currency":"USD"},{"qty":1000,"price":"$0.46662","currency":"USD"},{"qty":2500,"price":"$0.43551","currency":"USD"},{"qty":5000,"price":"$0.41374","currency":"USD"},{"qty":12500,"price":"$0.39818","currency":"USD"},{"qty":25000,"price":"$0.38574","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/b320160783c7c34bc855009f73e8e6bb.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BD33HA3MEFJ-ME2/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/rohm/BD33HA3MEFJ-ME2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/rohm/BD33HA3MEFJ-ME2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}