{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX20034ATIS/VY+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX20034ATIS-VY","canonicalUrl":"https://icboms.com/analog-devices/MAX20034ATIS-VY","factsUrl":"https://icboms.com/api/mcp/products/MAX20034ATIS%2FVY%2B","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated MAX20034ATIS/VY+, Automotive AEC-Q100 dual step-down (buck) controller, 3.5V to 36V supply, 220kHz to 2.2MHz switching, -40°C to 125°C, 28-TQFN wettable flank package.","salesMarkdown":"## Dual-output automotive buck controller with wide input range The Maxim Integrated MAX20034ATIS/VY+ is a dual-output step-down (buck) switching controller rated for automotive environments, carrying AEC-Q100 qualification. It accepts a supply voltage from 3.5 V to 36 V, making it suitable for 12 V and 24 V vehicle electrical systems with margin for load-dump transients. The part integrates two independent controller channels in a single 28-TQFN (5x5 mm) package with a wettable flank for automated optical inspection of solder joints. ## Switching frequency and clock synchronization The switching frequency is programmable from 220 kHz to 2.2 MHz. Operating at the lower end maximises efficiency by reducing switching losses; the upper end shrinks the inductor and output capacitor footprint. The part also accepts an external clock synchronisation signal, which lets the designer phase-shift multiple converters to spread the EMI spectrum — a common requirement when passing CISPR 25 Class 5 radiated emissions tests. ## Temperature range and automotive deployment The operating temperature range spans -40°C to 125°C, covering under-hood, engine bay, and exterior-mounted electronics. The 99% maximum duty cycle allows the output to stay in regulation through cold-crank events where the battery voltage dips below 6 V. Synchronous rectification is built in, so no external Schottky diode is needed for the low-side switch — that saves one component per output and improves efficiency at high load. ## Control features and output configuration Each output is independently enabled, and the controller includes current limiting. The output configuration is positive, meaning the IC drives external N-channel MOSFETs on both the high-side and low-side positions. The transistor-driver output type is compatible with standard logic-level and standard-level FETs.","metaTitle":"MAX20034ATIS/VY+ Automotive Dual Step-Down Controller","metaDescription":"MAX20034ATIS/VY+ dual step-down buck controller, AEC-Q100, 3.5V-36V input, -40°C to 125°C, 28-TQFN wettable flank.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q100","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Series":"Automotive, AEC-Q100","Package":"Tray","Function":"Step-Down","Topology":"Buck","Clock Sync":"Yes","Output Type":"Transistor Driver","Mounting Type":"Surface Mount, Wettable Flank","Output Phases":"1","Package / Case":"28-WFQFN Exposed Pad","lifecycle_stage":"eol_hot","Control Features":"Current Limit, Enable","Duty Cycle (Max)":"99%","Number of Outputs":"2","Output Configuration":"Positive","Frequency - Switching":"220kHz ~ 2.2MHz","Operating Temperature":"-40°C ~ 125°C","Synchronous Rectifier":"Yes","Supplier Device Package":"28-TQFN (5x5)","Voltage - Supply (Vcc/Vdd)":"3.5V ~ 36V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.22","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.22000","currency":"USD"},{"qty":10,"price":"$4.68700","currency":"USD"},{"qty":60,"price":"$4.43133","currency":"USD"},{"qty":120,"price":"$3.84050","currency":"USD"},{"qty":240,"price":"$3.64358","currency":"USD"},{"qty":480,"price":"$3.26938","currency":"USD"},{"qty":960,"price":"$2.75730","currency":"USD"},{"qty":2400,"price":"$2.61943","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/71941fe0fd9f1e208acf57eb3a87811e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can MAX20034ATIS/VY+ be used as a dual-output step-down controller?","answer":"Yes, the part integrates two independent step-down controller channels in one package, each with its own enable and current limit. It drives external N-channel MOSFETs for both channels."},{"question":"Is MAX20034ATIS/VY+ compatible with my existing 12V automotive power supply design?","answer":"The 3.5 V to 36 V input range covers 12 V nominal systems with margin for cold-crank (down to ~5 V) and load-dump (up to 36 V). The -40°C to 125°C temperature grade matches under-hood requirements."},{"question":"How do I solder MAX20034ATIS/VY+ with wettable flank?","answer":"The wettable flank package (28-TQFN) has partial side leads that become visible after reflow, enabling automated optical inspection (AOI) of the solder fillet. Standard lead-free reflow profiles for QFN packages apply; no special stencil aperture is required beyond the manufacturer's recommended footprint."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX20034ATIS-VY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX20034ATIS-VY 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}}