{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX1771CSA+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX1771CSA~3T","canonicalUrl":"https://icboms.com/analog-devices/MAX1771CSA~3T","factsUrl":"https://icboms.com/api/mcp/products/MAX1771CSA%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated MAX1771CSA+T, current-mode PWM controller, boost/buck-boost topology, 300kHz switching, 92% max duty cycle, 3V to 16.5V supply, enable pin, 8-SOIC, 0°C to 70°C.","salesMarkdown":"## Boost/buck-boost controller for non-isolated rails The MAX1771CSA+T is a current-mode PWM controller that supports boost and buck-boost topologies from a single 3V to 16.5V supply rail — a fit for generating 5V, 12V, or adjustable outputs from a battery or regulated bus. Switching at a fixed 300 kHz, the controller drives an external N-channel MOSFET and sets the inductor value and output filter corner — no external clock sync, so the switching noise spectrum is predictable. The 92% maximum duty cycle limits the achievable step-up ratio in boost mode; for a 3V input, the theoretical output ceiling is about 37.5V before the duty cycle saturates. RoHS3 compliant (2015/863/EU), with no exemptions that would restrict EU or UKCA market access.","metaTitle":"MAX1771CSA+T Boost/Buck-Boost Controller, 300kHz, 8-SOIC","metaDescription":"Maxim MAX1771CSA+T current-mode PWM controller, boost/buck-boost, 300kHz switching, 92% duty cycle, 3V-16.5V supply, 8-SOIC. Active, RoHS3. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Step-Up, Step-Up/Step-Down","Topology":"Boost, Buck-Boost","Clock Sync":"No","Output Type":"Transistor Driver","Mounting Type":"Surface Mount","Output Phases":"1","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Control Features":"Enable","Duty Cycle (Max)":"92%","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"300kHz","Operating Temperature":"0°C ~ 70°C (TA)","Synchronous Rectifier":"No","Supplier Device Package":"8-SOIC","Voltage - Supply (Vcc/Vdd)":"3V ~ 16.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.04","priceTiers":[{"qty":1,"price":"$5.64000","currency":"USD"},{"qty":1,"price":"$6.04000","currency":"USD"},{"qty":10,"price":"$5.42600","currency":"USD"},{"qty":10,"price":"$5.06600","currency":"USD"},{"qty":25,"price":"$5.13000","currency":"USD"},{"qty":25,"price":"$4.78960","currency":"USD"},{"qty":100,"price":"$4.44600","currency":"USD"},{"qty":100,"price":"$4.15080","currency":"USD"},{"qty":250,"price":"$3.93796","currency":"USD"},{"qty":250,"price":"$4.21800","currency":"USD"},{"qty":500,"price":"$3.78480","currency":"USD"},{"qty":500,"price":"$3.53352","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MAX1771CSA%2BT/alternatives.json"},"ai":{"faq":[{"question":"What is the switching frequency of MAX1771CSA+T?","answer":"The switching frequency is fixed at 300 kHz. There is no clock synchronization input, so the controller free-runs at this frequency."},{"question":"Does MAX1771CSA+T have an enable pin for shutdown control?","answer":"Yes, the control features include an Enable pin, allowing the controller to be shut down for power sequencing or low-power standby."},{"question":"What is the maximum duty cycle of MAX1771CSA+T?","answer":"The maximum duty cycle is 92%. This sets the upper limit on the step-up ratio in boost mode — for a given input voltage, the output cannot exceed approximately V_in / (1 - 0.92)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX1771CSA~3T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX1771CSA~3T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}