WWZMDiB W-08-13

Description

The WWZMDiB W-08-13 is a high-current, non-isolated DC-DC buck converter designed for applications where a higher DC voltage needs to be efficiently reduced to a controlled lower voltage.

Its wide 6–40V DC input range allows it to operate from a variety of DC sources, including batteries, solar systems and DC power supplies. The output voltage can be adjusted from approximately 1.2V to 35V DC, providing flexibility for different electronic loads and power-system requirements.

The converter provides independent CC (Constant Current) and CV (Constant Voltage) adjustment. In CV operation, the module regulates the output voltage while limiting current according to the configured settings. In CC operation, it regulates the output current while maintaining the output below the configured voltage limit.

The module is rated for up to 20A maximum output current and 300W maximum output power. For continuous high-current operation, published product information recommends staying around 15A and providing additional cooling, such as a fan, to manage heat.

Key Specifications

Specifications are based on currently available product listings for model W-08-13.

CC/CV Operation

Constant Voltage (CV):

• Set the desired output voltage.
• The converter maintains the configured voltage under changing load conditions.
• Current is limited according to the CC setting.

Constant Current (CC):

• Set the desired maximum output current.
• The converter regulates current for applications such as LED driving and battery charging.
• The output voltage remains below the configured CV limit.

This dual-mode design makes the module more versatile than a basic fixed-output voltage regulator.

Key Features & Benefits

• Wide 6–40V DC input range for flexible power-source compatibility.
• Adjustable 1.2–35V DC output for different load requirements.
• 20A maximum output current for high-current applications.
• 300W maximum output power.
• CC/CV regulation for controlled voltage and current delivery.
• Synchronous rectification for improved conversion efficiency.
• Short-circuit protection to help protect the converter and connected equipment.
• Compact module suitable for integration into custom power systems.
• Suitable for battery charging and high-power LED applications.
• Supports solar and photovoltaic power projects.

Typical Applications

The WWZMDiB W-08-13 can be used for:

• 🔋 Battery charging and battery-management projects
• ☀️ Solar and photovoltaic systems
• 💡 High-power LED drivers
• 🔧 DIY and electronics projects
• ⚡ DC power regulation
• 🧪 Laboratory and test equipment
• 🏭 Industrial DC equipment
• 🚗 Automotive and vehicle electronics
• 🔌 DC-powered motors and equipment
• Custom power-supply applications

Input & Output Terminals

The module provides dedicated connections for:

• IN+ — DC input positive
• IN− — DC input negative
• OUT+ — regulated output positive
• OUT− — regulated output negative
• CV — output-voltage adjustment
• CC — output-current adjustment
• EN — enable/control input

The EN function can be used to control the converter’s output according to the module’s operating logic.

Efficiency & Thermal Management

The module uses synchronous rectification and is advertised with conversion efficiency of up to approximately 96% under suitable operating conditions. Actual efficiency depends on input voltage, output voltage, current, load and operating temperature.

At high output power, particularly near the 300W maximum, adequate ventilation is important. Product information recommends adding a fan for high-power operation. The 20A rating should not automatically be interpreted as a recommended continuous operating current; published listings recommend approximately 15A for continuous use.

Important Compatibility & Safety Note

This is a buck/step-down converter. The input voltage must be higher than the required output voltage for normal step-down operation.

The module is intended for DC input only and should not be connected directly to an AC mains supply.

The stated 20A / 300W figures are maximum ratings, not necessarily recommended continuous operating levels. For sustained high-current operation, use appropriate wiring, connectors, ventilation and additional cooling.

For battery charging, the correct CV voltage and CC current must be configured for the specific battery chemistry and battery pack before connection.