{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MCP1640T-I/MC","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"MCP1640T-I-MC","canonicalUrl":"https://icboms.com/microchip/MCP1640T-I-MC","factsUrl":"https://icboms.com/api/mcp/products/MCP1640T-I%2FMC","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology MCP1640T-I/MC step-up boost regulator, adjustable output, 350 mA, 500 kHz, synchronous rectification, 8-VFDFN exposed pad, tape and reel.","salesMarkdown":"## Boost regulator with 0.8 V startup The MCP1640T-I/MC is a step-up (boost) switching regulator from Microchip Technology, designed to generate a regulated adjustable output from input voltages as low as 0.8 V. This makes it suitable for single-cell alkaline or NiMH battery-powered applications where the battery voltage drops below 1 V during discharge. ## Output voltage and thermal range The output is adjustable from a minimum of 2 V up to a maximum of 5.5 V, matching the input voltage ceiling. The single positive output configuration simplifies the feedback network — a resistor divider from VOUT to FB sets the regulation point. The 8-VFDFN exposed-pad package (8-DFN 2x3 mm) aids thermal dissipation through the PCB copper plane. The exposed pad must be soldered to the PCB ground plane for rated thermal and electrical performance.","metaTitle":"MCP1640T-I/MC Boost Converter, 350mA, 8-DFN","metaDescription":"Microchip MCP1640T-I/MC step-up boost regulator, 350mA output, 500kHz switching, synchronous rectification, 0.8V min input, -40 to +125°C, 8-DFN, Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Function":"Step-Up","Topology":"Boost","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"8-VFDFN Exposed Pad","lifecycle_stage":"eol_hot","Current - Output":"350mA","Number of Outputs":"1","Output Configuration":"Positive","Frequency - Switching":"500kHz","Operating Temperature":"-40°C ~ 125°C (TJ)","Synchronous Rectifier":"Yes","Voltage - Input (Max)":"5.5V","Voltage - Input (Min)":"0.8V","Voltage - Output (Max)":"5.5V","Supplier Device Package":"8-DFN (2x3)","Voltage - Output (Min/Fixed)":"2V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.82","priceTiers":[{"qty":1,"price":"$0.82000","currency":"USD"},{"qty":25,"price":"$0.67840","currency":"USD"},{"qty":100,"price":"$0.64500","currency":"USD"},{"qty":3300,"price":"$0.64500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/938ed6945227db3361aad3d123820aea.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MCP1640T-I%2FMC/alternatives.json"},"ai":{"faq":[{"question":"Does the MCP1640T-I/MC require an external Schottky diode?","answer":"No. The device integrates synchronous rectification, so the low-side and high-side switches are both internal MOSFETs. No external catch diode is needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/MCP1640T-I-MC","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/MCP1640T-I-MC 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}}