{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC4059AEDC#TRMPBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC4059AEDCTRMPBF","canonicalUrl":"https://icboms.com/analog-devices/LTC4059AEDCTRMPBF","factsUrl":"https://icboms.com/api/mcp/products/LTC4059AEDC%23TRMPBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LTC4059AEDC#TRMPBF, single-cell Lithium-Ion battery charger IC, constant-programmable charge current up to 900 mA, 4.2 V battery pack voltage, 6-WFDFN exposed pad package, surface mount, -40°C to 85°C operating range.","salesMarkdown":"## Single-cell Li-Ion charger in a 2x2 mm DFN The LTC4059AEDC#TRMPBF from Analog Devices is a constant-current, constant-voltage linear charger for single-cell Lithium-Ion batteries. It terminates at 4.2 V and delivers a programmable charge current up to 900 mA. The device operates over the -40°C to 85°C temperature range, suiting it for industrial and outdoor portable equipment such as handheld instruments, wireless sensors, and battery-backed IoT nodes. ## Charge current and thermal budget The 900 mA maximum charge current is set via an external resistor. At full current the linear regulator dissipates heat proportional to the input-to-battery voltage drop. ## Package and footprint The part comes in a 6-lead WFDFN with an exposed pad (supplier device package 6-DFN, 2x2 mm). It is surface-mount only. The small footprint saves board area but demands careful solder-paste stencil design for the pad to avoid voids. The exposed pad is the thermal and electrical ground connection — the datasheet's recommended land pattern should be followed exactly. ## Lifecycle and sourcing It is ROHS3 compliant. For a BOM line, this part carries no imminent obsolescence risk, and it is available through independent distribution channels. Pricing and current availability are confirmed at quote time against an RFQ.","metaTitle":"LTC4059AEDC#TRMPBF Li-Ion Battery Charger IC, 900mA Max","metaDescription":"LTC4059AEDC#TRMPBF single-cell Li-Ion charger IC from Analog Devices. 900mA programmable charge current, 4.2V termination, -40°C to 85°C range.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Mounting Type":"Surface Mount","Package / Case":"6-WFDFN Exposed Pad","Number of Cells":"1","lifecycle_stage":"eol_hot","Battery Chemistry":"Lithium Ion","Current - Charging":"Constant - Programmable","Battery Pack Voltage":"4.2V","Charge Current - Max":"900mA","Operating Temperature":"-40°C ~ 85°C (TA)","Voltage - Supply (Max)":"8V","Supplier Device Package":"6-DFN (2x2)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.2","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.20000","currency":"USD"},{"qty":10,"price":"$4.66700","currency":"USD"},{"qty":25,"price":"$4.41240","currency":"USD"},{"qty":100,"price":"$3.82400","currency":"USD"},{"qty":250,"price":"$3.62784","currency":"USD"},{"qty":500,"price":"$3.25526","currency":"USD"},{"qty":1000,"price":"$2.77500","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/4059fb.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can LTC4059A charge a 2-cell Li-Ion battery?","answer":"No. This charger is designed for a single Li-Ion cell with a 4.2 V termination voltage. It cannot charge a 2-cell pack (typically 8.4 V)."},{"question":"When sourcing LTC4059AEDC#TRMPBF, what is the closest functional second-source?","answer":"The LTC4059EDC#TRMPBF is the same die in the same package and pinout — functionally identical. The LTC4057ES5-4.2#TRMPBF and LTC4054LES5-4.2#TRPBF are also single-cell Li-Ion chargers with 4.2 V termination, but they come in different packages (SOT-23) and may have different charge current limits or thermal characteristics. Verify pin compatibility for a drop-in replacement."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC4059AEDCTRMPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LTC4059AEDCTRMPBF 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}}