{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX4837EUT33BD3-T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX4837EUT33BD3-T","canonicalUrl":"https://icboms.com/analog-devices/MAX4837EUT33BD3-T","factsUrl":"https://icboms.com/api/mcp/products/MAX4837EUT33BD3-T","rawCanonicalId":null},"summary":{"shortDescription":"Maxim Integrated MAX4837EUT33BD3-T LDO voltage regulator, 3.3V fixed output, 500mA, 6-WDFN exposed pad, surface mount, active.","salesMarkdown":"## 3.3V fixed rail, 500 mA ceiling — the load-budget anchor The MAX4837EUT33BD3-T is a single-output positive LDO regulator delivering a fixed 3.3V output at up to 500 mA. Quiescent current is 150 µA typical — the regulator's own draw is low enough for always-on peripherals on a battery-backed 3.3V bus, but not at the sub-µA level needed for extended sleep states without a load switch. ## Input range and protection — what the upstream rail needs to survive Maximum input voltage is 5.5V, so a nominal 5V rail with 10% tolerance (5.5V peak) sits right at the absolute limit. A 3.6V or 4.2V lithium-ion cell is a cleaner fit with margin to spare. On-chip protection covers overcurrent, overtemperature, and reverse polarity — the last one is unusual for a small LDO and saves an external series Schottky on the input when the supply can be connected backwards. Control features include Enable, Reset, and Soft Start. The soft-start ramp limits inrush current into the output capacitor, which matters when the 500 mA rail powers a microcontroller core or a sensor array that draws a large capacitive surge on power-up. ## 6-WDFN exposed pad — thermal and layout notes A layout without a thermal via array under the pad will hit the 85°C ambient ceiling quickly. The positive output configuration and fixed 3.3V rail mean no external resistor divider is needed — the feedback network is internal. The Enable and Soft Start pins give the designer sequenced power-up control without additional glue logic.","metaTitle":"MAX4837EUT33BD3-T LDO Regulator, 3.3V Fixed, 500mA, Active","metaDescription":"MAX4837EUT33BD3-T LDO, 3.3V fixed output, 500mA, 0.33V dropout at full load, 150µA quiescent, -40°C to 85°C, 6-WDFN exposed pad.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Bulk","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"6-WDFN Exposed Pad","lifecycle_stage":"eol_hot","Control Features":"Enable, Reset, Soft Start","Current - Output":"500mA","Protection Features":"Over Current, Over Temperature, Reverse Polarity","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 85°C (TA)","Voltage - Input (Max)":"5.5V","Voltage Dropout (Max)":"0.33V @ 500mA","Supplier Device Package":"6-TDFN (3x3)","Current - Quiescent (Iq)":"150 µA","Voltage - Output (Min/Fixed)":"3.3V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.07","stockQuantity":0,"priceTiers":[{"qty":281,"price":"$1.07000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/16167a48936c6a5132bf9adc4e517f4c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What package does the MAX4837EUT33BD3-T use and what are the thermal considerations?","answer":"It comes in a 6-WDFN exposed pad package (3x3 mm body, supplier device package 6-TDFN)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX4837EUT33BD3-T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX4837EUT33BD3-T 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}}