{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ADP1871ARMZ-0.3-R7","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"ADP1871ARMZ-0.3-R7","canonicalUrl":"https://icboms.com/analog-devices/ADP1871ARMZ-0.3-R7","factsUrl":"https://icboms.com/api/mcp/products/ADP1871ARMZ-0.3-R7","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices ADP1871ARMZ-0.3-R7, step-down buck controller, 300kHz switching frequency, single output, synchronous rectification, 2.95V to 20V supply, -40°C to 125°C, 10-MSOP package.","salesMarkdown":"## 300 kHz synchronous buck controller for intermediate bus and point-of-load rails Rated for junction temperatures from -40°C to 125°C, it suits automotive under-hood, industrial motor drives, and outdoor telecom equipment where ambient heat spikes. The 10-MSOP package keeps the footprint small for space-constrained power stages. ## Switching frequency and duty cycle — what they mean for the power stage The 300 kHz switching frequency sets the inductor ripple current and output capacitor ripple voltage. The maximum duty cycle of 84% limits the input-to-output step-down ratio. Synchronous rectification improves efficiency at heavy loads by replacing the freewheeling diode with a low-Rds(on) MOSFET. The controller includes an enable pin for sequencing and on/off control. ## Package and mounting Housed in a 10-lead MSOP with 0.118-inch body width (3.00 mm), the ADP1871ARMZ-0.3-R7 is a surface-mount device. The supplier device package is 10-MSOP. Tape & Reel and Cut Tape options are available for the -R7 suffix. ## Lifecycle and sourcing It is ROHS3 compliant.","metaTitle":"ADP1871ARMZ-0.3-R7 Buck Controller, 300kHz, 10-MSOP","metaDescription":"ADI ADP1871ARMZ-0.3-R7 step-down buck controller, 300kHz switching, 2.95V-20V supply, -40°C to 125°C, 10-MSOP. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Step-Down","Topology":"Buck","Clock Sync":"No","Output Type":"Transistor Driver","Mounting Type":"Surface Mount","Output Phases":"1","Package / Case":"10-TFSOP, 10-MSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Control Features":"Enable","Duty Cycle (Max)":"84%","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"300kHz","Operating Temperature":"-40°C ~ 125°C (TJ)","Synchronous Rectifier":"Yes","Supplier Device Package":"10-MSOP","Voltage - Supply (Vcc/Vdd)":"2.95V ~ 20V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.93","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.93000","currency":"USD"},{"qty":10,"price":"$3.53400","currency":"USD"},{"qty":25,"price":"$3.34040","currency":"USD"},{"qty":100,"price":"$2.89520","currency":"USD"},{"qty":250,"price":"$2.74668","currency":"USD"},{"qty":500,"price":"$2.46460","currency":"USD"},{"qty":1000,"price":"$2.07858","currency":"USD"},{"qty":2000,"price":"$1.97465","currency":"USD"},{"qty":5000,"price":"$1.90042","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/ADP1870_1871.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the switching frequency of ADP1871ARMZ-0.3-R7?","answer":"The switching frequency is 300 kHz. This is the fixed oscillator rate; the part does not support clock synchronization."},{"question":"What is the equivalent of ADP1871ARMZ-0.3-R7?","answer":"The closest functional peer is the ADP1873ARMZ-0.3-R7, which shares the same 300 kHz switching frequency, 84% duty cycle, synchronous rectification, and 10-MSOP package. The ADP1873 has a slightly lower minimum supply voltage (2.75 V vs 2.95 V). For a higher-frequency alternative, the ADP1883ARMZ-0.6-R7 switches at 600 kHz but has a lower 65% duty cycle."},{"question":"What is ADP1871ARMZ-0.3-R7's listed function?","answer":"The function is Step-Down (buck) DC-DC controller. It drives external N-channel MOSFETs in a synchronous rectifier configuration to produce a regulated positive output voltage lower than the input."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/ADP1871ARMZ-0.3-R7","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/ADP1871ARMZ-0.3-R7 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}}