{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX1653ESE+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX1653ESE","canonicalUrl":"https://icboms.com/analog-devices/MAX1653ESE","factsUrl":"https://icboms.com/api/mcp/products/MAX1653ESE%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX1653ESE+ step-down buck controller, 4.5-30V supply, 150/300 kHz switching, synchronous rectification, 16-SOIC package, tube.","salesMarkdown":"## Buck controller for non-isolated step-down rails The MAX1653ESE+ is a current-mode PWM buck controller from Analog Devices, designed to drive an external transistor pair for step-down conversion. Switching frequency is pin-selectable between 150 kHz and 300 kHz, and the controller supports clock synchronization to an external signal, which helps place switching harmonics outside sensitive bands in multi-rail systems. The 98% maximum duty cycle allows operation with small dropout between input and output, useful when the input rail sags near the regulation target. ## Package, temperature grade, and lifecycle The operating temperature range spans -40°C to +85°C, covering industrial and telecom ambient conditions. ## Control features and integration note On-chip control features include an Enable input for power sequencing and a Soft-Start pin to limit inrush current during startup. The soft-start ramp time is set by an external capacitor, giving the designer control over the output voltage slew rate. Because the controller uses an external transistor driver, the power-stage FETs are selected by the designer — the MAX1653ESE+ provides the gate drive logic but does not integrate the switches. This allows the output current rating to scale with the external MOSFETs rather than being fixed by the controller package.","metaTitle":"MAX1653ESE+ Buck Controller, 150/300 kHz, 16-SOIC","metaDescription":"MAX1653ESE+ step-down buck controller from Analog Devices, 4.5-30V supply, 150/300 kHz switching, synchronous rectification, active production, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tube","Function":"Step-Down","Topology":"Buck","Clock Sync":"Yes","Output Type":"Transistor Driver","Mounting Type":"Surface Mount","Output Phases":"1","Package / Case":"16-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Control Features":"Enable, Soft Start","Duty Cycle (Max)":"98%","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"150kHz, 300kHz","Operating Temperature":"-40°C ~ 85°C (TA)","Synchronous Rectifier":"Yes","Supplier Device Package":"16-SOIC","Voltage - Supply (Vcc/Vdd)":"4.5V ~ 30V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.8","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$8.80000","currency":"USD"},{"qty":10,"price":"$7.94800","currency":"USD"},{"qty":25,"price":"$7.57800","currency":"USD"},{"qty":100,"price":"$6.57990","currency":"USD"},{"qty":250,"price":"$6.28424","currency":"USD"},{"qty":500,"price":"$5.72972","currency":"USD"},{"qty":1000,"price":"$4.99041","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the switching frequency of MAX1653ESE+?","answer":"The switching frequency is pin-selectable between 150 kHz and 300 kHz, and the controller also accepts an external clock for synchronization."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX1653ESE","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX1653ESE 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}}