{"product_id":"xl4015-dc-dc-step-down-5a-cc-cv-buck-converter-lithium-battery-charging","title":"XL4015 DC-DC Step-Down Module — 5A CC\/CV Adjustable Buck Converter for Lithium Battery Charging","description":"\u003ch2\u003eXL4015 DC-DC Step-Down Module — 5A CC\/CV Adjustable Buck Converter\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eXL4015 DC-DC step-down module\u003c\/strong\u003e is a high-current constant-current \/ constant-voltage (CC\/CV) buck converter designed for lithium battery charging, LED driver applications, and adjustable bench power supply use. Based on the XL4015 PWM switching regulator IC, it delivers up to \u003cstrong\u003e5A continuous output current\u003c\/strong\u003e with independently adjustable output voltage and current via onboard potentiometers. Two LED indicators show CV (constant voltage) and CC (constant current) operating modes.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eIC\u003c\/td\u003e\n\u003ctd\u003eXL4015\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e8V – 36V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eOutput Voltage\u003c\/td\u003e\n\u003ctd\u003e1.25V – 32V DC (adjustable)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eMax Output Current\u003c\/td\u003e\n\u003ctd\u003e5A\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eControl Mode\u003c\/td\u003e\n\u003ctd\u003eCC\/CV (Constant Current \/ Constant Voltage)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eEfficiency\u003c\/td\u003e\n\u003ctd\u003eUp to 96%\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eSwitching Frequency\u003c\/td\u003e\n\u003ctd\u003e180kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e−40°C to +85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eIndicators\u003c\/td\u003e\n\u003ctd\u003eCV mode LED + CC mode LED\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eCN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWhy Choose CC\/CV Buck Converters?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSafe lithium battery charging\u003c\/strong\u003e — CC\/CV profile matches the standard lithium-ion and LiFePO4 charging algorithm: constant current bulk phase, then constant voltage absorption phase\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndependently adjustable V and I\u003c\/strong\u003e — Set output voltage with one potentiometer and current limit with another; no interaction between the two adjustments\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh efficiency\u003c\/strong\u003e — Up to 96% conversion efficiency minimizes heat generation at full load; onboard heatsink handles sustained 5A output\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide input range\u003c\/strong\u003e — 8–36V input covers 12V, 24V, and variable solar panel inputs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMode indicators\u003c\/strong\u003e — CV\/CC LEDs show operating mode at a glance during charging or load testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eSingle-cell and multi-cell lithium battery (Li-ion, LiPo, LiFePO4) charging\u003c\/li\u003e\n  \u003cli\u003eAdjustable bench power supply for electronics prototyping\u003c\/li\u003e\n  \u003cli\u003eHigh-power LED driver with constant current control\u003c\/li\u003e\n  \u003cli\u003eSolar panel MPPT output regulation (non-MPPT, fixed setpoint)\u003c\/li\u003e\n  \u003cli\u003eLead-acid battery maintenance charging\u003c\/li\u003e\n  \u003cli\u003eMotor speed control via voltage adjustment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eQ: Can I use this to charge a 3S lithium pack (12.6V)?\u003c\/h3\u003e\n\u003cp\u003eYes. Set the output voltage to 12.6V (3S full charge voltage) and the current limit to your desired charge rate (e.g., 1C of the pack capacity). Ensure the input voltage is at least 2–3V above the output voltage (minimum ~15V input for 12.6V output).\u003c\/p\u003e\n\n\u003ch3\u003eQ: Does it have short-circuit protection?\u003c\/h3\u003e\n\u003cp\u003eThe CC mode provides inherent current limiting that protects against overload. For hard short-circuit protection, add an external fuse on the input side rated slightly above your maximum operating current.\u003c\/p\u003e\n\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1× XL4015 DC-DC Step-Down CC\/CV Module\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"red xl4015","offer_id":46985494823147,"sku":"14:350852#red xl4015","price":9.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/xl4015-dc-dc-step-down-charging-module-5a-cc-cv.webp?v=1761287549","url":"https:\/\/keszoox.com\/products\/xl4015-dc-dc-step-down-5a-cc-cv-buck-converter-lithium-battery-charging","provider":"Keszoox","version":"1.0","type":"link"}