{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX1721EUT+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX1721EUT~3T","canonicalUrl":"https://icboms.com/analog-devices/MAX1721EUT~3T","factsUrl":"https://icboms.com/api/mcp/products/MAX1721EUT%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX1721EUT+T charge pump, ratiometric topology, fixed output, 25 mA, SOT-23-6, surface mount, active.","salesMarkdown":"## Charge pump in SOT-23-6 — board-fit and output flexibility The MAX1721EUT+T is a charge-pump DC-DC converter from Analog Devices that generates either a negative rail (-Vin) or a doubled positive rail (2Vin) from a single input between 1.5 V and 5.5 V. The ratiometric topology means the output voltage tracks the input ratio — no external inductor, just two flying capacitors and a reservoir cap. In a SOT-23-6 package, it fits into tight portable designs where board area is the constraint, not the inductor height. ## 25 mA output — what it can and cannot drive Rated 25 mA continuous output, this part is sized for low-power analog rails — op-amp supplies, comparator bias, or a small LCD bias generator. It is not a main power rail for a microcontroller or radio; the 25 mA ceiling limits it to auxiliary or signal-chain rails. The switching frequency spans 60 kHz to 200 kHz, so the external capacitors are small (typically 0.22 µF to 1 µF ceramic) but the ripple at the output is higher than a linear regulator would give. RoHS3 compliant (no exemptions expiring), so it ships unrestricted into EU and UKCA markets. The SOT-23-6 package (SOT-6 supplier device code) is a standard footprint with wide second-source availability — the same pattern is used across the MAX1720/MAX1721 family, making a pin-compatible swap straightforward if a second source is needed.","metaTitle":"MAX1721EUT+T Charge Pump, 25mA, SOT-23-6, Active","metaDescription":"Analog Devices MAX1721EUT+T charge pump, 25 mA output, 1.5-5.5 V input, SOT-23-6. Active, RoHS3. Sourced to order.","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":"Ratiometric","Topology":"Charge Pump","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"SOT-23-6","lifecycle_stage":"eol_hot","Current - Output":"25mA","Number of Outputs":"1","Output Configuration":"Positive or Negative","Frequency - Switching":"60kHz ~ 200kHz","Operating Temperature":"-40°C ~ 85°C (TA)","Synchronous Rectifier":"No","Voltage - Input (Max)":"5.5V","Voltage - Input (Min)":"1.5V","Supplier Device Package":"SOT-6","Voltage - Output (Min/Fixed)":"-Vin, 2Vin"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.36","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.36000","currency":"USD"},{"qty":10,"price":"$2.12000","currency":"USD"},{"qty":25,"price":"$2.00000","currency":"USD"},{"qty":100,"price":"$1.70400","currency":"USD"},{"qty":250,"price":"$1.60000","currency":"USD"},{"qty":500,"price":"$1.40000","currency":"USD"},{"qty":1000,"price":"$1.20000","currency":"USD"},{"qty":2500,"price":"$1.12500","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to MAX1721EUT+T?","answer":"The MAX1720EUT+T is a pin-compatible charge pump in the same SOT-23-6 package with the same input range and output current. The difference is the switching frequency range — the MAX1720 runs 12 kHz to 60 kHz versus the MAX1721's 60 kHz to 200 kHz. For a drop-in replacement where the lower switching frequency is acceptable, the MAX1720 is the closest match."},{"question":"What compliance documentation does Analog Devices provide for MAX1721EUT+T?","answer":"The MAX1721EUT+T is RoHS3 compliant (RoHS exemption-free) per the manufacturer's RoHS status. Analog Devices provides a RoHS certificate of compliance and a material declaration upon request. No UL or IEC certification is listed for this part; it is a standard commercial-grade IC with no agency safety mark."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX1721EUT~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/MAX1721EUT~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}}