{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX5033BASA+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX5033BASA","canonicalUrl":"https://icboms.com/analog-devices/MAX5033BASA","factsUrl":"https://icboms.com/api/mcp/products/MAX5033BASA%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX5033BASA+ step-down buck regulator, fixed 5V output, 500mA, 7.5-76V input, 8-SOIC package, tube.","salesMarkdown":"## 76V input buck in an 8-pin SOIC The MAX5033BASA+ is a step-down (buck) switching regulator from Analog Devices, delivering a fixed 5V output at up to 500mA from a 7.5V to 76V input rail. The 76V maximum input covers 48V telecom buses, 24V industrial supplies, and 12V automotive systems with headroom for transients — no external pre-regulator needed for those rails. ## 125 kHz switching and the thermal budget Switching at 125 kHz, the MAX5033BASA+ keeps switching losses low enough that the 8-SOIC package can dissipate the heat from 500mA output without a heatsink in most layouts — the junction temperature range is -40°C to +125°C. The downside of the low frequency is a larger inductor than a 500 kHz part would need; plan for a 47 µH to 100 µH shielded inductor in the BOM. No synchronous rectifier is used internally, so the external Schottky diode carries the inductor current during the off-time. The diode's forward drop and the 500mA output current set the rectifier's power dissipation — a 1A-rated Schottky with a Vf around 0.5V keeps the diode junction below 100°C in still air.","metaTitle":"MAX5033BASA+ Analog Devices Buck Regulator, 5V 500mA 8-SOIC","metaDescription":"MAX5033BASA+ step-down buck regulator from Analog Devices. Fixed 5V output, 500mA, 7.5-76V input, -40 to +125°C. Active production, ROHS3. Sourced to order.","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":"500mA","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"125kHz","Operating Temperature":"-40°C ~ 125°C (TJ)","Synchronous Rectifier":"No","Voltage - Input (Max)":"76V","Voltage - Input (Min)":"7.5V","Supplier Device Package":"8-SOIC","Voltage - Output (Min/Fixed)":"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":null,"sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX5033BASA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX5033BASA 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}}