{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX8840ELT33+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX8840ELT33T","canonicalUrl":"https://icboms.com/analog-devices/MAX8840ELT33T","factsUrl":"https://icboms.com/api/mcp/products/MAX8840ELT33%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX8840ELT33+T LDO linear regulator, fixed 3.3V output, 150mA, 6-WFDFN package, PSRR 78dB ~ 54dB (1kHz ~ 100kHz), 90µA quiescent current, -40°C to 85°C.","salesMarkdown":"## Noise rejection across the audio band — what the PSRR curve means The MAX8840ELT33+T: The PSRR is specified at 78 dB at 1 kHz, rolling off to 54 dB at 100 kHz. Above 100 kHz the rejection drops, so if the upstream supply is a switching converter running at 500 kHz, the LDO alone won't clean that noise; a post-filter LC stage before the LDO input is the usual fix. The 90 µA quiescent current is the LDO's own draw — it stays constant across load, so on a battery-powered sensor that sleeps most of the time, that 90 µA is the dominant drain when the load is off. For a 100 mAh coin cell, the LDO alone pulls about 46 days of standby before the load even wakes. ## Dropout and headroom — the input rail must stay above 3.42 V The dropout voltage is 120 mV typical at 120 mA load. That means the input rail must stay above 3.42 V (3.3 V + 0.12 V) to keep the output in regulation at that current. At lighter loads the dropout is lower, but the design rule is: if the input rail dips below 3.42 V under full load, the output follows it down. The max input is 6 V, so a 5 V rail is fine; a 3.6 V lithium cell near end-of-discharge (3.0 V) won't hold regulation. That's useful for sequencing: the MCU can hold the analog rail off until the system is ready to sample, then assert enable and wait for the output to settle. ## Package and board-fit — 6-uDFN, 1.5 mm × 1.0 mm For 150 mA output at 3.3 V from a 5 V input, the LDO dissipates about 255 mW (1.7 V drop × 150 mA). The 6-WFDFN footprint is common — no exotic pad geometry — so reflow profiles for standard lead-free solder work. No moisture sensitivity level is listed, but for a small leadless package, a bake before reflow is cheap insurance if the reel seal is broken.","metaTitle":"MAX8840ELT33+T Analog Devices LDO, 3.3V 150mA, 6-uDFN","metaDescription":"MAX8840ELT33+T LDO, fixed 3.3V output, 150mA, PSRR 78dB at 1kHz, 90µA Iq, 6-uDFN. Active, ROHS3. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"PSRR":"78dB ~ 54dB (1kHz ~ 100kHz)","Package":"Tape & Reel (TR); Cut Tape (CT)","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"6-WFDFN","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"150mA","Protection Features":"Over Current, Over Temperature","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 85°C (TA)","Voltage - Input (Max)":"6V","Voltage Dropout (Max)":"0.12V @ 120mA (Typ)","Supplier Device Package":"6-uDFN (1.5x1)","Current - Quiescent (Iq)":"90 µA","Voltage - Output (Min/Fixed)":"3.3V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.68","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.70000","currency":"USD"},{"qty":10,"price":"$1.52600","currency":"USD"},{"qty":25,"price":"$1.43920","currency":"USD"},{"qty":100,"price":"$1.22620","currency":"USD"},{"qty":250,"price":"$1.15140","currency":"USD"},{"qty":500,"price":"$1.00748","currency":"USD"},{"qty":1000,"price":"$0.83476","currency":"USD"},{"qty":2500,"price":"$0.77720","currency":"USD"},{"qty":5000,"price":"$0.74841","currency":"USD"},{"qty":12500,"price":"$0.71962","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy MAX8840ELT33+T and how do I get a price?","answer":"Pricing and current lead time are confirmed at quote time — submit a request with your target quantity and we will return a firm quote."},{"question":"What is MAX8840ELT33+T's PSRR at 1 kHz?","answer":"PSRR is 78 dB at 1 kHz, rolling to 54 dB at 100 kHz. That means a 10 mV ripple at 1 kHz is attenuated to about 1.3 µV at the output."},{"question":"What compliance documentation does Analog Devices provide for MAX8840ELT33+T?","answer":"The part is ROHS3 compliant. No separate UL, IEC, or REACH certification is listed in the standard documentation — the ROHS3 declaration is the compliance anchor."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX8840ELT33T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX8840ELT33T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}