Product Description
The DC-DC Buck Converter Module (8–55 V to 5 V, 2 A) is a high-efficiency step-down switching regulator power supply board designed to convert a wide DC input voltage (from 8 V up to 55 V) down to a stable 5 V DC output at up to 2 A continuous current. This makes it perfect for powering 5 V logic circuits, microcontrollers (Arduino/ESP32/STM32), SBCs (like Raspberry Pi) peripherals, sensors, displays, and USB-powered devices from higher voltage sources such as automotive batteries, solar panels, or industrial supplies.
Using a switching buck topology (often based on popular regulator ICs like LM2596, MP2307, XL4016, or other high-efficiency controllers), this board achieves regulated output with better efficiency and lower heat compared to linear regulators — ideal when running high-current loads from wide battery or supply voltages.
Key Features
Wide input voltage range: 8 V to 55 V DC
Fixed regulated 5 V DC output
Up to 2 A continuous output current
Switching (buck) regulator for high efficiency
On-board potentiometer for fine tuning (if adjustable)
LED power indicator
Screw terminals or solder pads for easy input/output connections
Compact PCB suitable for embedded systems
Protects load circuits with stable & clean output
Package Includes
1 × DC-DC Buck Converter Module (8–55 V to 5 V, 2 A)
Mounting holes & connection headers (varies by supplier)
Technical Specifications
| Parameter | Specification |
|---|---|
| Input Voltage | 8 V – 55 V DC |
| Output Voltage | 5 V DC regulated |
| Output Current | Up to 2 A |
| Conversion Type | Step-down (buck) switching regulator |
| Efficiency | High (~80–95 %, depending on load) |
| Regulation | Tight 5 V DC output under load |
| Load Capability | Telecommunications, digital systems, lighting |
| Ripple / Noise | Low (buck regulator) |
| Indicator | Power LED |
| PCB Size | Compact board module |
Applications
Powering Arduino / ESP32 / STM32 / Raspberry Pi accessories
USB 5 V supply for sensors, modules, and peripherals
Automotive applications (12 V / 24 V battery conversion)
Solar panel power regulation
Robotics & embedded electronics
Communications & control systems
Industrial monitoring systems