{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC4020IUHF#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC4020IUHFPBF","canonicalUrl":"https://icboms.com/analog-devices/LTC4020IUHFPBF","factsUrl":"https://icboms.com/api/mcp/products/LTC4020IUHF%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Linear Technology (ADI) PowerPath™ LTC4020IUHF#PBF, multi-chemistry battery charger IC, 55V max supply, constant programmable current, -40 to 125°C, 38-QFN 5x7mm exposed pad.","salesMarkdown":"## Multi-chemistry charger for industrial and automotive battery management The LTC4020IUHF#PBF from Linear Technology (now part of Analog Devices) is a multi-chemistry battery charger controller in the PowerPath™ series. It handles Li-Ion, LiFePO4, lead-acid, and other chemistries via a constant-current programmable charge algorithm. The 55V maximum supply voltage lets it work directly from 12V to 48V input rails — think telecom rectifiers, automotive bus voltages, or solar panel outputs — without an extra pre-regulator. Operating junction temperature from -40°C to 125°C qualifies it for under-hood automotive, outdoor telecom cabinets, and factory-floor charging stations where ambient heat is a given. ## 55V input — what it means for your BOM The 55V supply max covers 36V nominal battery stacks with margin and handles 48V telecom rails including transients. The LTC4008EGN#PBF tops out at 28V, limiting it to 24V systems or lower. ## Active production — no LTB contingency needed The LTC4020IUHF#PBF carries an Active lifecycle status. For a BOM line that needs a multi-chemistry charger, this part can be specified into new designs without planning a last-time-buy or qualifying a replacement down the road. The ROHS3 compliance is current — no exemption-phase-out concern. ## Package and thermal: 38-QFN with exposed pad Housed in a 38-lead WFQFN with exposed pad, measuring 5x7mm. The pad must be soldered to a copper plane for thermal relief — the charging current is constant-programmable, and at higher set currents the QFN's thermal impedance demands a solid PCB thermal path. Surface-mount only; no through-hole option. ## Sourcing this part The LTC4020IUHF#PBF is sourced through independent distribution and quoted to order against an RFQ. For dual-sourcing flexibility, the LTC4020EUHF#PBF is the same die with an identical 55V rating and 38-QFN package, differing only in temperature screening — a viable second-source candidate for builds that don't require the full -40 to 125°C range.","metaTitle":"LTC4020IUHF#PBF Multi-Chemistry Battery Charger IC, 55V","metaDescription":"LTC4020IUHF#PBF PowerPath multi-chemistry battery charger IC. 55V max supply, -40 to 125°C, 38-QFN. Active production.","metaKeywords":null},"attributes":{"series":"PowerPath™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Series":"PowerPath™","Package":"Tube","Mounting Type":"Surface Mount","Package / Case":"38-WFQFN Exposed Pad","lifecycle_stage":"eol_hot","Battery Chemistry":"Multi-Chemistry","Current - Charging":"Constant - Programmable","Operating Temperature":"-40°C ~ 125°C (TJ)","Voltage - Supply (Max)":"55V","Supplier Device Package":"38-QFN (5x7)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$14.25","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$14.25000","currency":"USD"},{"qty":10,"price":"$13.09900","currency":"USD"},{"qty":25,"price":"$12.55640","currency":"USD"},{"qty":100,"price":"$11.06310","currency":"USD"},{"qty":250,"price":"$10.52016","currency":"USD"},{"qty":500,"price":"$9.84144","currency":"USD"},{"qty":1000,"price":"$9.02698","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/4020fd.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the equivalent or alternative to LTC4020IUHF#PBF?","answer":"The closest functional equivalent is the LTC4020EUHF#PBF — same die, same 55V max supply, same 38-QFN package, but screened to a different temperature grade. For higher input voltage (60V), the LTC4079IDD#PBF is a multi-chemistry alternative in a different package."},{"question":"What battery chemistries does the LTC4020IUHF#PBF support?","answer":"It supports multi-chemistry charging — Li-Ion, LiFePO4, lead-acid, and others — via a constant-current programmable charge algorithm."},{"question":"What is the difference between LTC4020IUHF and LTC4020IUHF#PBF?","answer":"The #PBF suffix indicates ROHS3 compliance (lead-free). The LTC4020IUHF without the suffix is the same device but may not carry the same RoHS certification level. Functionally and electrically they are identical."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC4020IUHFPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LTC4020IUHFPBF 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}}