8A 300W DC to DC Step-Down Adjustable Constant Voltage Constant Current Buck Converter Module

8A 300W DC to DC Step-Down Buck Converter Module

The 300W 8A DC CC CV Buck Step-Down Converter Module is a versatile and high-performance power supply solution designed for a variety of applications. Capable of handling input voltages from 7V to 32V and providing adjustable output voltages from 0.8V to 28V, this module can deliver up to 8A of current, making it ideal for high-power LED driving, battery charging, vehicle-mounted power supplies, and low voltage system power supplies.

Featuring a high conversion efficiency of up to 95%, this non-isolated step-down module ensures optimal power usage and minimal heat generation. It includes four high-frequency capacitors to reduce output ripple and enhance stability, and a double heat sink design for effective heat dissipation. The module is equipped with a 3296 multiturn potentiometer for precise voltage and current regulation, along with dual-color LED load indicators for easy monitoring of operating conditions.

With built-in protections such as short circuit protection and on-board LED load indication, this module is both reliable and user-friendly. Whether you are powering high-power LEDs, charging lithium or lead-acid batteries, or creating a regulated power supply, the 300W 8A DC CC CV Buck Step-Down Converter Module is a robust and efficient choice.

Specifications

• Input Voltage: 7-32V DC
• Output Voltage: 0.8-28V DC (Adjustable)
• Output Current: 8A (MAX), Continuous Range: 0.2-8A Adjustable
• Output Power: 300W (MAX)
• Conversion Efficiency: 95%
• Output Ripple: 50mV
• Operating Temperature: -40°C to +85°C (reduce power or enhance cooling above 40°C)
• No-load Current: 20mA (input 24V, output 12V)
• Voltage Regulation: ± 1%
• Load Regulation: ± 1%
• Dynamic Response Speed: 200uS 5%
• Short Circuit Protection: Yes
• Input Reverse Protection: No (reverse protection or diode needed)
• Dimensions: 65 x 47 x 23 mm

Applications

1. High-power LED driver
2. Lithium battery or lead-acid battery charger
3. Vehicle-mounted power supply
4. Low voltage system power supply
5. On-board laptop power supply
6. Regulated power supply for various devices

Module Adjustment Instructions

1. Adjust the output voltage using the CV trimmer (clockwise to increase, counterclockwise to decrease).
2. Adjust the output current using the CC trimmer (clockwise to increase, counterclockwise to decrease).
3. Monitor voltage and current with a multimeter during adjustments.

Charger Application Instructions

1. Determine required float voltage and charging current for the target battery.
2. Adjust output voltage to approximately 5V using the CV trimmer.
3. Measure short-circuit output current with a multimeter and adjust using the CC trimmer.
4. Adjust output voltage to the float voltage required by the battery.
5. Connect the battery to the module output and commence charging.

LED Driver Application Instructions

1. Determine operating current and maximum voltage for the LED.
2. Adjust output voltage to approximately 5V using the CV trimmer.
3. Measure short-circuit output current with a multimeter and adjust using the CC trimmer.
4. Adjust output voltage to the maximum operating voltage of the LED.
5. Connect the LED and test.