{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LT3021EDH-1.5#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LT3021EDH-1.5~4PBF","canonicalUrl":"https://icboms.com/analog-devices/LT3021EDH-1.5~4PBF","factsUrl":"https://icboms.com/api/mcp/products/LT3021EDH-1.5%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LT3021EDH-1.5#PBF linear regulator, 500 mA, 1.5 V fixed output, 58 dB PSRR (120 Hz), 285 mV dropout max, 16-WFDFN exposed pad, tube.","salesMarkdown":"## 500 mA LDO, 1.5 V fixed rail with 58 dB PSRR The LT3021EDH-1.5#PBF is a 500 mA low-dropout linear regulator from Analog Devices, delivering a fixed 1.5 V output from a maximum 10 V input rail. Dropout is 285 mV max at full load — the input-to-output headroom must stay above that across the current range to keep the rail in regulation. PSRR is 58 dB at 120 Hz, meaning it rejects line-frequency ripple well enough to power sensitive analog front-ends without a post-filter. ## Quiescent current and protection set Quiescent current is 250 µA typical, rising to 10 mA max under supply — the low idle draw suits always-on or battery-backed rails where every microamp counts. Built-in protection covers over-current, over-temperature, and reverse polarity — the regulator survives a reversed input without external Schottky clamping. The enable pin lets the system designer gate the output for sequenced power-up or shutdown, pulling the regulator into shutdown mode. ## Package, temperature grade, and compliance Housed in a 16-lead WFDFN with exposed pad (5x5 mm), the LT3021EDH-1.5#PBF is surface-mount and requires a thermal land on the PCB to dissipate the 500 mA load heat. Active lifecycle status and ROHS3 compliant per manufacturer records.","metaTitle":"LT3021EDH-1.5#PBF LDO, 500mA, 1.5V Fixed, 58dB PSRR","metaDescription":"Analog Devices LT3021EDH-1.5#PBF linear regulator: 500mA, 1.5V fixed output, 58dB PSRR at 120Hz, 285mV dropout max. Active, ROHS3. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"PSRR":"58dB (120Hz)","Package":"Tube","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"16-WFDFN Exposed Pad","lifecycle_stage":"eol_hot","Control Features":"Enable","Current - Output":"500mA","Protection Features":"Over Current, Over Temperature, Reverse Polarity","Number of Regulators":"1","Output Configuration":"Positive","Operating Temperature":"-40°C ~ 125°C","Voltage - Input (Max)":"10V","Voltage Dropout (Max)":"0.285V @ 500mA","Current - Supply (Max)":"10 mA","Supplier Device Package":"16-DFN (5x5)","Current - Quiescent (Iq)":"250 µA","Voltage - Output (Min/Fixed)":"1.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.99","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.99000","currency":"USD"},{"qty":10,"price":"$6.31300","currency":"USD"},{"qty":25,"price":"$6.01920","currency":"USD"},{"qty":100,"price":"$5.22640","currency":"USD"},{"qty":250,"price":"$4.99152","currency":"USD"},{"qty":500,"price":"$4.55112","currency":"USD"},{"qty":1000,"price":"$4.15500","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the PSRR of the LT3021EDH-1.5#PBF and why does it matter?","answer":"PSRR is 58 dB at 120 Hz — that is the line-frequency rejection ratio. For a 1.5 V rail feeding a precision ADC or op-amp, this attenuation keeps 60/120 Hz ripple from coupling into the signal chain. Above 120 Hz the rejection rolls off, so upstream switching noise needs its own filter."},{"question":"Does the LT3021EDH-1.5#PBF drop in for the LT3021EDH-1.2#TRPBF?","answer":"No — the output voltage differs: 1.5 V fixed versus 1.2 V fixed. The package, pinout, and footprint are identical (16-DFN 5x5), but the output rail voltage is set internally and cannot be adjusted. A board designed for 1.2 V would need a different regulator or a post-regulator divider to run at 1.5 V."},{"question":"What compliance documentation does Analog Devices provide for the LT3021EDH-1.5#PBF?","answer":"The part is ROHS3 compliant per the manufacturer's lifecycle record. Standard documentation includes the datasheet, RoHS declaration, and material composition data — available on request with your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LT3021EDH-1.5~4PBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LT3021EDH-1.5~4PBF 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}}