{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX17671FATB+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX17671FATB","canonicalUrl":"https://icboms.com/analog-devices/MAX17671FATB","factsUrl":"https://icboms.com/api/mcp/products/MAX17671FATB%2B","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated MAX17671FATB+, dual-output step-down (buck) switching regulator, 4V to 60V input, fixed 3.3V and 5V outputs, 50mA / 150mA per channel, 610kHz switching frequency, synchronous rectifier, -40°C to +125°C, 10-TDFN-EP (3x3mm) package.","salesMarkdown":"## Dual-output buck regulator with 60V input tolerance The MAX17671FATB+ from Maxim Integrated is a dual-output step-down (buck) switching regulator that accepts a wide input voltage range from 4V to 60V and delivers two fixed output voltages: 3.3V and 5V. Each output is independently sourced at 50mA and 150mA respectively, with synchronous rectification for improved efficiency at the 610kHz switching frequency. The part operates over the full -40°C to +125°C temperature range, making it suitable for industrial, automotive, and telecommunications power supplies that must handle high-voltage transients and wide thermal swings. Packaged in a 10-lead TDFN with exposed pad (3x3mm), it supports surface-mount assembly with good thermal transfer to the PCB. ## Input voltage range: 4V to 60V – what that means for the BOM The 4V minimum input lets this regulator operate from a 5V rail with headroom, while the 60V maximum covers 48V telecom buses and 24V industrial supplies. ## Outputs and current: dual fixed rails for mixed-voltage loads The 3.3V output rated at 50mA and the 5V output rated at 150mA are both fixed – no external resistor divider required. The 50mA rail typically powers a low-power microcontroller or sensor interface, while the 150mA rail can drive analog front-ends, small relays, or isolated transceivers. If your load draws more than the per-channel rating, parallel the outputs or step up to a single-output regulator with higher current. ## Thermal and package reality The 10-TDFN exposed-pad package (3x3mm) relies on a solid thermal via stitch under the pad to keep junction temperatures within limits at full load and ambient up to 125°C. Without a low-thermal-resistance PCB connection, the part will thermally throttle or exceed the maximum junction temperature. Layout guideline: connect the exposed pad to a large copper pour on the bottom layer with at least four vias.","metaTitle":"MAX17671FATB+ Dual Buck Regulator, 4V–60V Input","metaDescription":"MAX17671FATB+ step-down regulator: 4V to 60V input, dual fixed outputs 3.3V/5V, 50mA/150mA, 610kHz, -40°C to 125°C, 10-TDFN.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Package":"Strip","Function":"Step-Down","Topology":"Buck","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"10-WFDFN Exposed Pad","lifecycle_stage":"eol_hot","Current - Output":"50mA, 150mA","Number of Outputs":"2","Output Configuration":"Positive","Frequency - Switching":"610kHz","Operating Temperature":"-40°C ~ 125°C (TA)","Synchronous Rectifier":"Yes","Voltage - Input (Max)":"60V","Voltage - Input (Min)":"4V","Supplier Device Package":"10-TDFN (3x3)","Voltage - Output (Min/Fixed)":"3.3V, 5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.44","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.44000","currency":"USD"},{"qty":10,"price":"$3.99000","currency":"USD"},{"qty":25,"price":"$3.77240","currency":"USD"},{"qty":100,"price":"$3.26940","currency":"USD"},{"qty":250,"price":"$3.10172","currency":"USD"},{"qty":500,"price":"$2.78316","currency":"USD"},{"qty":1000,"price":"$2.34724","currency":"USD"},{"qty":2500,"price":"$2.22988","currency":"USD"}]},"links":{"datasheetUrl":"https://datasheets.maximintegrated.com/en/ds/MAX17671.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the output current of MAX17671FATB+?","answer":"The 3.3V output is rated for 50mA and the 5V output for 150mA, both continuous."},{"question":"Where to buy MAX17671FATB+ available via RFQ confirmation?","answer":"This part is sourced to order through independent distribution. Submit an RFQ for current availability and pricing – confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX17671FATB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX17671FATB 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}}