XY6550S 3250W DC-DC Converter Module for Electronics Prototyping

Sinilink XY6550S 3250 W Programmable DC Buck Converter

The XY6550S is a high-current constant-voltage/constant-current DC buck converter for building adjustable bench supplies, battery-charging systems and controlled DC loads. It reduces a higher DC input to the required output; it is not a boost converter or a finished mains-powered power supply.

Verified Electrical Specifications

• Input: 12.00-75.00 V DC.
• Adjustable output: 0-65.00 V DC, 0-50.00 A; rated maximum output 3250 W.
• Voltage/current setting resolution: 0.01 V / 0.01 A; 10 stored parameter groups.
• 1.8-inch colour display, soft start, buzzer, MPPT solar-charging support, and typical 95% conversion efficiency.
• Listed modes include constant voltage, constant current and constant power; dual-fan cooling and typical 200 mV peak-to-peak output ripple.

Choose the Required Package

• bare board only: conversion board only; it is not the full display/control set.
• a set: base XY6550S set.
• a set with 433, 485, IR or WiFi: base set supplied with the named optional control accessory. Choose the required communication method; it is not included with every variant.

Installation and Safety Notes

• Use a suitably rated isolated DC source, wiring, terminals, fuse and enclosure. Ensure the input voltage is above the required output voltage.
• For battery charging, set the correct cell-specific CV/CC limits with output off, verify polarity, then enable output only after the setup has been checked.
• Listed protections include reverse-polarity, reverse-current, under/over-voltage, over-current, over-power and temperature protection. They do not replace correct system design and ventilation.
• RS-485, serial TTL and optional Wi-Fi, infrared or 433 controls require the corresponding selected accessory and correct connector pinout.