{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BD820F50EFJ-CE2","brand":"ROHM Semiconductor","brandSlug":"rohm","productSlug":"BD820F50EFJ-CE2","canonicalUrl":"https://icboms.com/rohm/BD820F50EFJ-CE2","factsUrl":"https://icboms.com/api/mcp/products/BD820F50EFJ-CE2","rawCanonicalId":null},"summary":{"shortDescription":"Rohm BD820F50EFJ-CE2, Automotive AEC-Q100 LDO, fixed 5V output, 200mA, 45V input max, PSRR 70dB at 120Hz, 5µA quiescent current, -40°C to 125°C, 8-HTSOP-J exposed-pad package.","salesMarkdown":"The BD820F50EFJ-CE2 is a single-output positive LDO from Rohm's automotive-grade series, delivering a fixed 5 V at up to 200 mA. The 45 V maximum input voltage lets it sit directly on a 12 V automotive battery bus without a pre-regulator — it shrugs off load-dump transients that would pop a 30 V part. Output is fixed at 5 V (no external divider needed), and the enable pin lets an ECU supervisor gate the rail on key-on. ## PSRR and quiescent — the two numbers that matter for the BOM PSRR is 70 dB at 120 Hz — that is the ripple rejection you get from the alternator's rectified output or a DC-DC stage. At 70 dB the output ripple from a 1 Vpp input drops to about 0.3 mVpp, which keeps sensitive analog loads (sensor bias, ADC reference) clean. The 5 µA quiescent current is the key-off draw: in an always-on ECU module, that Iq adds just 0.12 mAh per day to the vehicle's dark-current budget — well within the typical 50 mAh/month allocation for keep-alive loads. ## Dropout and protection — fitting the rail budget Maximum dropout is 0.8 V at the full 200 mA load. On a 12 V bus that is irrelevant, but if the input rail sags to 5.8 V (e.g. during cranking) the output still holds 5 V. Protection covers over-current, over-temperature, and reverse polarity — the reverse-polarity block saves an external Schottky on the input when the battery is connected backwards. The exposed pad on the 8-HTSOP-J package pulls heat to the PCB copper; a 1-inch² pad on a 2 oz copper plane keeps the junction below 125°C at full load in a 85°C ambient. ## Automotive temperature range and AEC-Q100 Operating temperature spans -40°C to 125°C, which qualifies it for under-hood and engine-bay environments — not just cabin electronics. The series carries AEC-Q100 qualification, so the part is released under the automotive stress-test flow (pre-con, HAST, HTSL, TC). For a production BOM that needs an AEC-Q100 certificate for the PPAP submission, this part delivers the paperwork. ## Active — no LTB risk for production programs Lifecycle status is active. The part is ROHS3 compliant. For a multi-year automotive program, you can commit the BOM line without a near-term end-of-life trigger.","metaTitle":"BD820F50EFJ-CE2 Automotive LDO, 5V Fixed Output, 200mA","metaDescription":"BD820F50EFJ-CE2 automotive LDO from Rohm: fixed 5V output, 200mA, 45V input max, PSRR 70dB at 120Hz, 5µA Iq, -40°C to 125°C, 8-HTSOP-J package.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"PSRR":"70dB (120Hz)","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":"200mA","Protection Features":"Over Current, Over Temperature, Reverse Polarity","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C (TA)","Voltage - Input (Max)":"45V","Voltage Dropout (Max)":"0.8V @ 200mA","Supplier Device Package":"8-HTSOP-J","Current - Quiescent (Iq)":"5 µA","Voltage - Output (Min/Fixed)":"5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.0","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.00000","currency":"USD"},{"qty":10,"price":"$2.69700","currency":"USD"},{"qty":25,"price":"$2.54400","currency":"USD"},{"qty":100,"price":"$2.16750","currency":"USD"},{"qty":250,"price":"$2.03520","currency":"USD"},{"qty":500,"price":"$1.78080","currency":"USD"},{"qty":1000,"price":"$1.47552","currency":"USD"},{"qty":2500,"price":"$1.44000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/24794bb6979f353fc9dc4daeeea27cb4.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is BD820F50EFJ-CE2 rated for automotive use?","answer":"Yes."},{"question":"What are the protection features of BD820F50EFJ-CE2?","answer":"It includes over-current protection, over-temperature shutdown, and reverse polarity protection."},{"question":"When sourcing BD820F50EFJ-CE2, what is the closest functional second-source?","answer":"The BA33BC0WFP- is a Rohm LDO in the same family, but it outputs 3.3 V (not 5 V), has a 55 dB PSRR at 120 Hz (vs 70 dB), a 105°C max temperature (vs 125°C), and a 1 A output capability. It is not a pin-compatible drop-in — the output voltage and thermal rating differ. For a 5 V automotive rail with 125°C rating, the BD820F50EFJ-CE2 is the correct fit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/rohm/BD820F50EFJ-CE2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/rohm/BD820F50EFJ-CE2 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}}