{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX5035AUSA+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX5035AUSA","canonicalUrl":"https://icboms.com/analog-devices/MAX5035AUSA","factsUrl":"https://icboms.com/api/mcp/products/MAX5035AUSA%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX5035AUSA+ step-down buck regulator, fixed 3.3V output, 1A, 7.5-76V input range, 125kHz switching frequency, 8-SOIC surface mount package, tube.","salesMarkdown":"## Step-down regulator for wide-VIN industrial rails The MAX5035AUSA+ is a fixed 3.3 V output, 1 A capable step-down (buck) switching regulator from Analog Devices, designed for applications where the input rail spans 7.5 V to 76 V. The 125 kHz switching frequency keeps external inductor and capacitor values moderate, while the non-synchronous topology (external catch diode required) is a deliberate choice for high input voltage operation where a synchronous FET would add complexity and cost. ## Input voltage headroom and output current budget With a minimum input of 7.5 V and maximum of 76 V, this regulator handles 12 V, 24 V, 48 V, and even 72 V industrial bus voltages without an external pre-regulator. The 1 A continuous output current is specified across the full input range, but the actual power dissipation in the 8-SOIC package limits the achievable output at high VIN — the junction temperature rise from the internal switch's Rds(on) must be checked against the 85°C ambient ceiling. The 3.3 V fixed output eliminates the need for an external feedback divider, saving two resistors and one PCB trace. The 125 kHz switching frequency is low enough to avoid AM radio band interference in sensitive environments, but the inductor ripple current is higher than a 500 kHz design would deliver — select an inductor with a saturation rating above the peak current, not just the DC output. ## Package, footprint, and thermal routing The 8-SOIC (0.154-inch body width, 3.90 mm) package with a standard 1.27 mm pin pitch is a low-cost, widely available footprint. The MAX5035AUSA+ does not expose a thermal pad — all heat is conducted through the leads and the copper on the PCB. A 1 oz copper pour on the top layer under the package, with vias to an internal ground plane, is the recommended thermal management for sustained 1 A operation at high VIN. The tube packaging (50 units per tube typical for 8-SOIC) is suitable for hand-assembly or low-volume production. For automated pick-and-place, a tape-and-reel option may exist under a different order code suffix — verify the packaging code with the BOM quantity before committing.","metaTitle":"MAX5035AUSA+ Buck Regulator, 3.3V Fixed Output, 1A, 8-SOIC","metaDescription":"Analog Devices MAX5035AUSA+ step-down buck regulator, 3.3V fixed output, 1A, 7.5-76V input, 125kHz switching, 8-SOIC. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Microcontrollers & Processors (MCU / MPU / DSP)"],"specifications":{"Package":"Tube","Function":"Step-Down","Topology":"Buck","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Current - Output":"1A","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"125kHz","Operating Temperature":"0°C ~ 85°C (TA)","Synchronous Rectifier":"No","Voltage - Input (Max)":"76V","Voltage - Input (Min)":"7.5V","Supplier Device Package":"8-SOIC","Voltage - Output (Min/Fixed)":"3.3V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.03","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.03000","currency":"USD"},{"qty":10,"price":"$4.51900","currency":"USD"},{"qty":25,"price":"$4.27240","currency":"USD"},{"qty":100,"price":"$3.70270","currency":"USD"},{"qty":250,"price":"$3.51280","currency":"USD"},{"qty":500,"price":"$3.15200","currency":"USD"},{"qty":1000,"price":"$2.65832","currency":"USD"},{"qty":2500,"price":"$2.52540","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Is the MAX5035AUSA+ RoHS compliant?","answer":"Yes, it is ROHS3 compliant, meaning it is fully lead-free with no RoHS exemptions."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX5035AUSA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX5035AUSA 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}}