{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BQ2057TSN","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"BQ2057TSN","canonicalUrl":"https://icboms.com/texas-instruments/BQ2057TSN","factsUrl":"https://icboms.com/api/mcp/products/BQ2057TSN","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments BQ2057TSN, single-cell Lithium Ion/Polymer linear charger IC, 4.1V battery pack voltage, programmable constant-current, 8-SOIC surface-mount package, tube.","salesMarkdown":"## Single-cell Li-Ion/Polymer linear charger in 8-SOIC The BQ2057TSN is a Texas Instruments linear charge-management IC designed for single-cell Lithium Ion or Lithium Polymer battery packs, with a fixed 4.1V charge-termination voltage. Charge current is programmable via an external resistor, allowing the designer to set the constant-current phase to match the cell's recommended rate. ## Package and mounting – 8-SOIC tube delivery ## Active production – sourcing posture Because the part is active, buyers can commit to multi-year builds without a last-time-buy trigger.","metaTitle":"BQ2057TSN Texas Instruments Li-Ion/Polymer Charger IC –","metaDescription":"Texas Instruments BQ2057TSN single-cell Li-Ion/Polymer linear charger, 4.1V pack voltage, programmable charge current, -20°C to 70°C, 8-SOIC tube.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tube","Interface":"-","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Product Status":"Active","Number of Cells":"1","lifecycle_stage":"eol_hot","Fault Protection":"-","Battery Chemistry":"Lithium Ion/Polymer","Current - Charging":"Constant - Programmable","Base Product Number":"BQ2057","Battery Pack Voltage":"4.1V","Charge Current - Max":"-","Operating Temperature":"-20°C~70°C(TA)","Programmable Features":"Current","Voltage - Supply (Max)":"15V","Supplier Device Package":"8-SOIC"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.1005","priceTiers":[{"qty":135,"price":"$2.23000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/4dff13bc08ada4dfba957dbdeac0459e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BQ2057TSN/alternatives.json"},"ai":{"faq":[{"question":"How can I order the BQ2057TSN or check stock and pricing?","answer":"The BQ2057TSN is an active Texas Instruments part. Submit an RFQ with your target quantity and we will confirm current availability, pricing, and lead time. The tube package (8-SOIC) is the standard ordering code for this line item."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/BQ2057TSN","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/BQ2057TSN 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}}