{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC3251EMSE-1.2#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC3251EMSE-1.2PBF","canonicalUrl":"https://icboms.com/analog-devices/LTC3251EMSE-1.2PBF","factsUrl":"https://icboms.com/api/mcp/products/LTC3251EMSE-1.2%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LTC3251EMSE-1.2#PBF, Charge Pump Step-Down Regulator, Fixed 1.2 V Output, 500 mA, 2.7 V to 5.5 V Input, 1 MHz to 1.6 MHz Switching, -40°C to 85°C, 10-MSOP-EP, Tube.","salesMarkdown":"## What the LTC3251EMSE-1.2#PBF is and where it fits The LTC3251EMSE-1.2#PBF from Analog Devices is a charge-pump step-down regulator that delivers a fixed 1.2 V output at up to 500 mA. It operates from an input voltage range of 2.7 V to 5.5 V. ## Key ratings and what they mean for the BOM The 500 mA output current sets the load budget: this part supplies a 1.2 V core rail for a small MCU, an FPGA bank, or a sensor interface, but not a multi-amp processor core. ## Package and mounting Housed in a 10-MSOP-EP (exposed pad) package, the LTC3251EMSE-1.2#PBF requires a thermal land on the PCB to sink heat from the die. The exposed pad must be soldered to a copper plane for rated output at high ambient. The 0.118-inch body width (3.00 mm) fits tight layouts, but the pad footprint needs clearance from adjacent traces. Supplied in Tube — not Tape & Reel — so plan for hand-loading or a tube feeder if the pick-and-place line is set up for reels only. ## Lifecycle and sourcing The LTC3251EMSE-1.2#PBF is listed as Active with a ROHS3 compliance status. No NRND or EOL notice is on record, so it remains a current-production part suitable for new designs.","metaTitle":"LTC3251EMSE-1.2#PBF Charge Pump Step-Down, 1.2V Fixed Output","metaDescription":"LTC3251EMSE-1.2#PBF is an active charge pump step-down regulator delivering 500 mA fixed 1.2 V from 2.7 V to 5.5 V input.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tube","Function":"Step-Down","Topology":"Charge Pump","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"10-TFSOP, 10-MSOP (0.118\\\", 3.00mm Width) Exposed Pad","lifecycle_stage":"eol_hot","Current - Output":"500mA","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"1MHz ~ 1.6MHz","Operating Temperature":"-40°C ~ 85°C (TA)","Synchronous Rectifier":"No","Voltage - Input (Max)":"5.5V","Voltage - Input (Min)":"2.7V","Supplier Device Package":"10-MSOP-EP","Voltage - Output (Min/Fixed)":"1.2V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.32","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.32000","currency":"USD"},{"qty":10,"price":"$5.67300","currency":"USD"},{"qty":25,"price":"$5.36320","currency":"USD"},{"qty":100,"price":"$4.64800","currency":"USD"},{"qty":250,"price":"$4.40968","currency":"USD"},{"qty":500,"price":"$3.95678","currency":"USD"},{"qty":1000,"price":"$3.33704","currency":"USD"},{"qty":2500,"price":"$3.17019","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/4ae339e1d4afc8dbe99d7b46dbecd2df.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy LTC3251EMSE-1.2#PBF?","answer":"This part is sourced and quoted to order through independent distribution. Submit an RFQ for current availability and pricing."},{"question":"Can LTC3251EMSE-1.2#PBF generate negative voltages?","answer":"No. This part is configured as a positive step-down (buck) charge pump with a fixed 1.2 V positive output. It cannot generate a negative rail."},{"question":"What is a replacement for LTC3251EMSE-1.2#PBF?","answer":"No official replacement or second-source part is listed in the cross-reference data. For a functional equivalent, consider a different charge-pump step-down regulator with a fixed 1.2 V output and 500 mA capability, but verify pinout and package compatibility — the 10-MSOP-EP footprint is specific."},{"question":"What is LTC3251EMSE-1.2#PBF's listed package?","answer":"The part ships in Tube packaging. The device package is a 10-MSOP-EP (10-lead MSOP with exposed pad, 0.118-inch / 3.00 mm body width)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC3251EMSE-1.2PBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LTC3251EMSE-1.2PBF when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}