{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX1589ETT250+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX1589ETT250~3","canonicalUrl":"https://icboms.com/analog-devices/MAX1589ETT250~3","factsUrl":"https://icboms.com/api/mcp/products/MAX1589ETT250%2B","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated MAX1589ETT250+ LDO regulator, fixed 2.5V output, 500mA, 70dB PSRR at 1kHz, 6-WDFN exposed pad, -40°C to +85°C, ROHS3 compliant.","salesMarkdown":"## Fixed 2.5V rail for core logic The MAX1589ETT250+ is a single-output LDO regulator delivering a fixed 2.5V output at up to 500mA — a common core voltage for low-power MCUs, FPGAs, and RF transceivers that need a clean, regulated rail from a 3.3V or 3.6V input bus. Maximum dropout is 350mV at the full 500mA load, meaning the input must stay above 2.85V to keep the output in regulation across the temperature range. ## PSRR and noise rejection at 1kHz With 70dB of power-supply rejection at 1kHz, this LDO attenuates switching ripple from a buck converter or charge pump by a factor of over 3000 — critical for analog front-ends or RF oscillators where supply noise couples into the signal path. The quiescent current is 140µA typical, so the regulator's own draw stays low enough for battery-powered equipment that spends most of its time in idle or sleep mode. ## Thermal and protection features The 6-WDFN package with exposed pad (3x3mm) conducts heat to the PCB ground plane — layout should connect the pad to a copper pour for the rated 500mA at 85°C ambient. Built-in over-temperature and short-circuit protection allow the regulator to survive a sustained output fault without external clamp diodes. Control features include an enable pin for power sequencing and a reset output that holds the load in reset until the output stabilises. ROHS3 compliant, covering the full ten restricted substances including the four phthalates added in EU Directive 2015/863.","metaTitle":"MAX1589ETT250+ LDO Regulator, 500mA, 2.5V Fixed, 6-TDFN","metaDescription":"MAX1589ETT250+ LDO regulator, 500mA output, fixed 2.5V, 70dB PSRR at 1kHz. Industrial temp -40°C to +85°C. Active production, ROHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"PSRR":"70dB (1kHz)","Package":"Bulk","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"6-WDFN Exposed Pad","lifecycle_stage":"eol_hot","Control Features":"Enable, Reset","Current - Output":"500mA","Protection Features":"Over Temperature, Short Circuit","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 85°C (TA)","Voltage - Input (Max)":"3.6V","Voltage Dropout (Max)":"0.35V @ 500mA","Supplier Device Package":"6-TDFN (3x3)","Current - Quiescent (Iq)":"140 µA","Voltage - Output (Min/Fixed)":"2.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.37","stockQuantity":0,"priceTiers":[{"qty":219,"price":"$1.37000","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is MAX1589ETT250+'s listed PSRR?","answer":"The power-supply rejection ratio is 70dB at 1kHz, which attenuates 1kHz ripple on the input by a factor of approximately 3160."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX1589ETT250~3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX1589ETT250~3 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}}