XL4015 5A DC to DC CC CV Lithium Battery Step down Charging Board Power Converter Charger Step Down Module

Feature：

• Size: 5.2 x 2.65 x 1.4cm (L x W x H)
• Module Properties: non-isolated constant current and voltage module
• Rectification: non-synchronous rectification
• Input voltage: 5V-32V
• Output voltage: 0.8V-30V
• Output current: adjustable maximum 5A
• Conversion efficiency: 95% (the highest)
• Switching frequency: 300KHz
• Output ripple: 50mV (max) 20M bandwidth
• Load Regulation: ± 0.5%
• Voltage Regulation: ± 2.5%
• Operating Temperature: -40 °c to +85 °c

More details: https://circuitdigest.com/electronic-circuits/diy-xl4015-dc-dc-buck-converter-module