{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC4055EUF-1#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC4055EUF-1PBF","canonicalUrl":"https://icboms.com/analog-devices/LTC4055EUF-1PBF","factsUrl":"https://icboms.com/api/mcp/products/LTC4055EUF-1%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LTC4055EUF-1#PBF Li-Ion battery charger IC, USB interface, 1-cell, 4.1V battery pack voltage, 1A max charge current, 16-WQFN Exposed Pad, tube.","salesMarkdown":"## 1-cell Li-Ion charger with USB power path The LTC4055EUF-1#PBF is a single-cell Lithium-Ion battery charger IC designed to draw power directly from a USB port. It charges a 4.1V battery pack at a programmable constant current up to 1A, with an integrated timer to terminate the charge cycle. Fault protection covers over-temperature and reverse-current conditions, which means if the battery voltage exceeds the input or the die gets too hot, the charger shuts down rather than letting the magic smoke out. ## Package and board-fit Housed in a 16-WQFN Exposed Pad (4x4 mm, 0.50 mm pitch), surface-mount only. Supplied in tube format; the package code is 16-QFN (4x4). The 0.50 mm pitch means a standard reflow profile with a 0.10 mm stencil aperture is fine, but the exposed paddle requires a paste coverage of at least 50% to avoid voids that trap moisture and pop during rework. ## Sourcing posture This is an active, ROHS3-compliant part sourced through authorized distribution.","metaTitle":"LTC4055EUF-1#PBF Li-Ion Charger IC, USB, 1A, 16-QFN","metaDescription":"LTC4055EUF-1#PBF from Analog Devices: 1-cell Li-Ion charger with USB interface, 4.1V battery pack voltage, 1A max charge current, 16-WQFN Exposed Pad.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tube","Interface":"USB","Mounting Type":"Surface Mount","Package / Case":"16-WQFN Exposed Pad","Number of Cells":"1","lifecycle_stage":"eol_hot","Fault Protection":"Over Temperature, Reverse Current","Battery Chemistry":"Lithium Ion","Current - Charging":"Constant - Programmable","Battery Pack Voltage":"4.1V","Charge Current - Max":"1A","Operating Temperature":"-40°C ~ 85°C (TA)","Programmable Features":"Timer","Voltage - Supply (Max)":"5.5V","Supplier Device Package":"16-QFN (4x4)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.39","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.39000","currency":"USD"},{"qty":10,"price":"$5.77600","currency":"USD"},{"qty":25,"price":"$5.50760","currency":"USD"},{"qty":100,"price":"$4.78210","currency":"USD"},{"qty":250,"price":"$4.56720","currency":"USD"},{"qty":500,"price":"$4.16424","currency":"USD"},{"qty":1000,"price":"$3.62691","currency":"USD"},{"qty":2500,"price":"$3.49258","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/847eed28df4068fe63d185d3c89e6c54.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the maximum charge current for LTC4055EUF-1#PBF?","answer":"The charge current is set by an external resistor; the datasheet provides the formula."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC4055EUF-1PBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LTC4055EUF-1PBF 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}}