XY-S3580 Adjustable Buck-Boost Module – 6–36V In, 0.6–36V Out, 5A, 80W, Color LCD

The XY-S3580 is a digitally controlled, adjustable buck-boost DC-DC power module designed for laboratory use, battery charging, and general-purpose voltage/current regulation. It accepts an input voltage of 6V to 36V DC and delivers a continuously adjustable output from 0.6V to 36V, with a maximum output current of 5A and a maximum output power of 80W. Unlike a simple buck or boost converter, the XY-S3580 maintains a stable regulated output whether the input voltage is above, below, or equal to the output voltage, making it suitable for applications where the source voltage varies widely, such as battery-powered systems and solar charging setups.

The module features a 1.44-inch color LCD that displays input voltage, output voltage, output current, output power, capacity (Ah), energy (Wh), and operating time in real time. An integrated rotary encoder allows precise adjustment of voltage (0.01V resolution) and current (0.001A resolution), and the display orientation can be rotated by holding the on/off button for two seconds. The module supports both constant-voltage (CV) and constant-current (CC) modes, with automatic transition from CV to CC when the set current threshold is reached, which is essential for charging lithium and lead-acid batteries. A comprehensive protection suite includes input undervoltage protection (LVP, default 4.8V), output overvoltage protection (OVP, default 37V), output overcurrent protection (OCP, default 5.2A), output overpower protection (OPP, default 81W), overtemperature protection, output short-circuit protection, and output reverse-current protection (allowing direct battery charging without an external blocking diode). The module also includes a cooling fan that activates automatically above approximately 1.5A output current or 50°C. Up to 10 preset parameter groups can be stored in memory and recalled for repeated test setups.

The XY-S3580 is commonly used as a benchtop laboratory power supply, a solar battery charger, an LED driver, and a motor speed controller in robotics and DIY electronics projects. It is a compact, panel-mountable module measuring approximately 79 × 42 × 22 mm and weighing about 90–104g depending on the variant and whether the encoder knob is included. The module requires an external DC source (adapter, battery, or solar panel) and is not a standalone power supply.