{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX15301AA02+CJK","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX15301AA02CJK","canonicalUrl":"https://icboms.com/analog-devices/MAX15301AA02CJK","factsUrl":"https://icboms.com/api/mcp/products/MAX15301AA02%2BCJK","rawCanonicalId":null},"summary":{"shortDescription":"Maxim MAX15301AA02+CJK, Step-Down (Buck) Controller, PMBus, 1 Output, Transistor Driver, 4.5V to 14V Supply, 300kHz to 1MHz, 32-TQFN (5x5mm), -40°C to 85°C.","salesMarkdown":"## What the key ratings mean for the BOM decision Switching frequency is programmable from 300kHz to 1MHz, with clock sync available. A lower frequency (300-500kHz) reduces switching losses and suits higher step-down ratios; 1MHz lets you shrink the output inductor and capacitor, saving board area at the cost of slightly higher FET gate-drive loss. The synchronous rectifier is built in, so no external Schottky catch diode is needed — the low-side MOSFET handles the freewheeling interval. Control features include current limit, enable, and power-good output. The power-good flag is open-drain and asserts when the output is within regulation — useful for sequencing or fault reporting to a CPLD or supervisor. The enable pin lets the system hold the controller off until the input rail is stable. The 32-TQFN (5x5mm) package with exposed pad requires a thermal land on the PCB. The exposed pad must be soldered to a copper plane for heat spreading; a via array under the pad to an inner ground plane is standard practice. The package is surface-mount, compatible with standard reflow profiles. ## Temperature grade and deployment environment Rated for -40°C to 85°C ambient, this controller fits industrial control, base-station power, networking equipment, and outdoor telecom enclosures. It is not qualified to AEC-Q100, so it is not aimed at automotive under-hood or chassis domains. The 95% maximum duty cycle allows operation close to dropout — useful when the input rail sags under load. ## Lifecycle and sourcing posture The MAX15301AA02+CJK is listed as Active and ROHS3 compliant. For a production BOM line that needs PMBus telemetry on a 12V buck rail, this part is a current-design fit with no LTB risk.","metaTitle":"MAX15301AA02+CJK Buck Controller, PMBus, 4.5V-14V, 32-TQFN","metaDescription":"Maxim MAX15301AA02+CJK step-down (buck) controller with PMBus interface. 4.5V-14V supply, 300kHz-1MHz switching, -40°C to 85°C. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tube","Function":"Step-Down","Topology":"Buck","Clock Sync":"Yes","Output Type":"Transistor Driver","Mounting Type":"Surface Mount","Output Phases":"1","Package / Case":"32-WFQFN Exposed Pad","lifecycle_stage":"eol_hot","Control Features":"Current Limit, Enable, Power Good","Duty Cycle (Max)":"95%","Number of Outputs":"1","Serial Interfaces":"PMBus","Output Configuration":"Positive","Frequency - Switching":"300kHz ~ 1MHz","Operating Temperature":"-40°C ~ 85°C (TA)","Synchronous Rectifier":"Yes","Supplier Device Package":"32-TQFN (5x5)","Voltage - Supply (Vcc/Vdd)":"4.5V ~ 14V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$9.83","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$9.83000","currency":"USD"},{"qty":10,"price":"$8.88100","currency":"USD"},{"qty":25,"price":"$8.46840","currency":"USD"},{"qty":100,"price":"$7.35300","currency":"USD"},{"qty":250,"price":"$7.02252","currency":"USD"},{"qty":500,"price":"$6.40290","currency":"USD"},{"qty":1000,"price":"$5.57672","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/93938c559d84094aeaa74a12f2fd2dd3.pdf","sourceUrl":null},"ai":{"faq":[{"question":"How do I program MAX15301AA02+CJK via PMBus?","answer":"Programming is done over the PMBus (I²C-based) serial interface. The controller responds to standard PMBus commands for output voltage trim, fault limits, and telemetry readback. A typical sequence: power up the Vcc rail, hold the enable pin low until the bus is stable, then send the desired VOUT_COMMAND and OPERATION commands. No on-chip nonvolatile memory is mentioned — the configuration is set at each power-up via the bus."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX15301AA02CJK","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX15301AA02CJK 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}}