{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MCP73123-22SI/MF","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"MCP73123-22SI-MF","canonicalUrl":"https://icboms.com/microchip/MCP73123-22SI-MF","factsUrl":"https://icboms.com/api/mcp/products/MCP73123-22SI%2FMF","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology MCP73123-22SI/MF LiFePO4 battery charger IC, 1-cell, 1.1A max charge current, 10-VFDFN Exposed Pad, Tube.","salesMarkdown":"## LiFePO4 charger with programmable current and timer The MCP73123-22SI/MF is a single-cell Lithium Iron Phosphate (LiFePO4) battery charge management controller in a 10-DFN (3x3 mm) package. It targets portable and backup-power designs where a 3.6 V battery pack voltage and a programmable charge current up to 1.1 A are needed. The 1.1 A maximum charge current is programmable via an external resistor or current-source setting, not a fixed output — the constant-current phase is adjustable down to lower rates. ## Package and board-fit notes The 10-VFDFN Exposed Pad package (3x3 mm DFN) has a large thermal pad on the underside — the board layout must include a thermal via array under the pad to pull heat away from the die during constant-current charging at 1.1 A. The exposed pad is also the ground return; a solid connection to the PCB ground plane is required for both thermal and electrical performance. Surface-mount assembly with a 0.50 mm pitch DFN — the pad geometry matches the standard JEDEC MO-229 footprint.","metaTitle":"Microchip MCP73123-22SI/MF LiFePO4 charger, 1.1A, 10-DFN","metaDescription":"Microchip MCP73123-22SI/MF LiFePO4 battery charger IC, 1.1A max, 1-cell, 10-DFN. Active production, ROHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Power Management (PMIC / Gate Driver)"],"specifications":{"Package":"Tube","Mounting Type":"Surface Mount","Package / Case":"10-VFDFN Exposed Pad","Number of Cells":"1","lifecycle_stage":"eol_hot","Fault Protection":"Over Temperature, Over Voltage, Reverse Current","Battery Chemistry":"Lithium Iron Phosphate","Current - Charging":"Constant - Programmable","Battery Pack Voltage":"3.6V","Charge Current - Max":"1.1A","Operating Temperature":"-40°C ~ 85°C (TA)","Programmable Features":"Current, Timer","Voltage - Supply (Max)":"16V","Supplier Device Package":"10-DFN (3x3)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.52","priceTiers":[{"qty":1,"price":"$1.52000","currency":"USD"},{"qty":25,"price":"$1.26160","currency":"USD"},{"qty":100,"price":"$1.15500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/845d9d13439916eefc951801f40caf8f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MCP73123-22SI%2FMF/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for MCP73123-22SI/MF?","answer":"Submit an RFQ through this listing; availability is verified against current distributor and factory stock positions."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/MCP73123-22SI-MF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/MCP73123-22SI-MF 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}}