DC 9V-16V to 3.3V 10A 50W Step Down Buck Converter Power Module

DC 9V-16V to 3.3V 10A 50W Step Down Buck Converter Power ModuleThis high-efficiency DC 9V-16V to 3.3V 10A 50W Step Down Buck Converter Power Module is engineered to convert higher DC voltages down to a stable, high-current 3.3V output. Furthermore, it features robust synchronous rectification and a dedicated aluminum heatsink plate, consequently ensuring minimal thermal buildup during heavy-load operations. Therefore, it is an exceptional power supply choice for high-draw microcontrollers, FPGAs, and power-hungry communication modules. However, users must ensure the input voltage stays within the specified 9V to 16V range to prevent triggering internal protection circuits. Specifically, the compact board layout includes large input and output filtering capacitors to maintain voltage stability. Moreover, the heavy-duty solder pads allow for secure wire connections capable of handling up to 10 amperes of continuous current. Ultimately, this regulator provides professional-grade power conversion for demanding low-voltage electronics.

Key Features

• High Current Output: Delivers up to 10A of continuous output current, making it ideal for low-voltage, high-power electronics.
• Included Aluminum Heatsink: Comes with a matching metal thermal plate to efficiently dissipate heat from high-stress components.
• Synchronous Rectification: Maximizes conversion efficiency and reduces wasted energy as heat.
• Low Dropout Performance: Efficiently steps down 12V automotive or power supply rails to a stable 3.3V logic level.
• Robust Filtering: Features onboard electrolytic and ceramic capacitors to suppress ripple and voltage spikes.
• Secure Connection Pads: Large through-hole and surface pads allow for thick wire soldering or direct bolt-on mounting.

Technical Specifications

• Input Voltage Range: 9V DC to 16V DC.
• Output Voltage: 3.3V DC.
• Maximum Output Current: 10A.
• Maximum Output Power: Up to 33W − 50W (depending on input voltage and cooling efficiency).
• Conversion Efficiency: Typically ≥ 90%.
• Operating Temperature Range: −40°C to +85°C.

Mechanical Specifications

• PCB Substrate: Multi-layer FR4 green and white board with heavy copper traces.
• Thermal Plate: Brushed aluminum heatsink with corner mounting holes.
• Component Technology: Surface Mount Technology (SMT) with high-density power MOSFETs.

Dimensions

• Module Size: ≈ 35.0 mm × 35.0 mm (L x W).
• Height (Including Heatsink): ≈ 12.0 mm.

Pinout and Wiring

• VIN: Positive input voltage connection (9V to 16V DC).
• VOUT: Regulated 3.3V DC positive power output.
• GND: Common ground terminals for both input and output circuits.
• Wiring Note: Use appropriately thick gauge wires for the input and output pads to safely handle high 10A currents without voltage drop.

Datasheet Reference: Download Datasheet

• • High-Current Step-Down Converter Technical Principles

Commonly Used in

• Automotive 12V to 3.3V Power Rails
• FPGA and High-Performance Processor Power Supplies
• LED Driver Control Systems
• Industrial Automation Hardware
• High-Drain Embedded Computing Rigs

Applications

• Engineers use this module to step down 12V automotive power safely to run sensitive 3.3V digital logic.
• It provides stable power for high-current LED arrays requiring precise voltage regulation.
• Consequently, it is integrated into industrial control panels to drive low-voltage peripheral devices.
• Furthermore, hobbyists deploy it in custom computing builds where standard regulators overheat due to high current draws.
• Ultimately, it ensures reliable power delivery in vibration-prone mobile environments when bolted to its heatsink.

Equivalent Models

• LM2596 5A Step-Down Module: A lower-current adjustable buck converter alternative.
• DC-DC 12V to 3.3V 10A Enclosed Module: A pre-housed waterproof power supply version.
• MP1584EN Mini Buck Converter: A much smaller footprint board for lower current applications.

Package Includes

• 1 x DC 9V-16V to 3.3V 10A Step Down Buck Converter Board