DIYables 5A 75W DC DC Buck Converter Step Down Module with LED Display, 4V-38V to 1.25V-36V Adjustable Voltage Regulator, Power Supply Board
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Quick Overview
The DIYables 5A 75W DC-DC Buck Converter is a high-power step-down voltage regulator module designed for electronics prototyping, DIY power supplies, and embedded system projects. It accepts a wide input voltage range of 4V to 38V DC and delivers a precisely adjustable output from 1.25V to 36V with up to 5A continuous current and 75W maximum output power. A built-in LED voltmeter display provides real-time output voltage monitoring with ±0.1V accuracy, making it easy to set and verify your target voltage without additional test equipment.
The module achieves up to 96% conversion efficiency, minimizing heat generation for stable and reliable operation. Built with a thickened PCB, high-quality inductors, and solid capacitors, it reduces electrical noise and ensures consistent performance. The output voltage is adjusted via an onboard potentiometer. Note that the input voltage must be at least 1.5V higher than the desired output voltage for proper regulation.
This 2-pack value set is perfect for powering Arduino boards, ESP32, ESP8266, Raspberry Pi, and other microcontroller projects from higher voltage sources such as 12V or 24V supplies. Ideal for robotics, motor control, LED drivers, battery charging circuits, bench power supplies, solar power systems, and general-purpose DC voltage conversion in DIY and maker projects.
Key Features
- 5A 75W High Power Output — Supports up to 5A continuous current and 75W output power for demanding electronics and motor applications
- 96% Conversion Efficiency — High efficiency design minimizes power loss and heat generation for stable, reliable operation
- Adjustable Output Voltage — Output voltage continuously adjustable from 1.25V to 36V via onboard potentiometer to suit any project requirement
- Wide Input Voltage Range — Accepts DC 4V to 38V input, compatible with common power sources including 5V, 12V, 24V, and LiPo battery packs
- Built-in LED Voltmeter Display — Integrated voltmeter shows real-time output voltage with ±0.1V accuracy for easy monitoring and adjustment
- High Precision Stable Design — Thickened PCB with high-quality inductors and solid capacitors reduces noise and ensures reliable long-term performance
- 2-Pack Value Set — Includes two modules for dual-supply projects, redundancy, or multi-project use at a great value
- Compact Module Design — Small form factor with screw terminal connections for easy integration into any enclosure or prototyping setup
- Versatile Applications — Ideal for powering Arduino, ESP32, Raspberry Pi, robotics, LED drivers, and general-purpose DC-DC conversion
- ...NOTE
- Input voltage must be at least 1.5V higher than the desired output voltage for proper regulation. For example, to output 5V, the input must be at least 6.5V.
- ...NOTE
SPECIFICATION
| Specification | Value |
|---|---|
| Product Type | DC-DC Buck Converter (Step Down Voltage Regulator Module) |
| Input Voltage | 4V to 38V DC |
| Output Voltage | 1.25V to 36V DC (adjustable) |
| Maximum Output Current | 5A |
| Maximum Output Power | 75W |
| Conversion Efficiency | Up to 96% |
| Voltage Display | Built-in LED voltmeter, ±0.1V accuracy |
| Adjustment Method | Onboard potentiometer |
| Minimum Input-Output Differential | 1.5V (input must exceed output by at least 1.5V) |
| PCB | Thickened PCB with high-quality inductors and solid capacitors |
| Operating Temperature | -40°C to +85°C (typical) |
| Package Quantity | 2 pieces |
| Compatibility | Arduino, ESP32, ESP8266, Raspberry Pi, and any system requiring regulated DC power |
| Applications | DIY power supply, robotics, LED driver, motor power, battery charging, solar systems, bench supply |
PACKAGE
A package includes:
| Qty | Items |
|---|---|
| 2 | 5A 75W DC-DC buck converter step down modules with LED display |
COMPATIBLE HARDWARE
- Arduino boards (UNO, Mega, Nano, etc.) — Step down from 12V/24V source to regulated 5V or 3.3V supply
- Arduino Uno R4 WiFi/Minima — Provide stable 5V supply from higher voltage input
- ESP32 development boards — Regulate input supply to 3.3V or 5V for ESP32 projects
- ESP8266 boards (NodeMCU, Wemos D1, etc.) — Power from car, solar, or industrial 12V sources
- Raspberry Pi (all models) — Supply regulated 5V from 12V or 24V DC source
- Raspberry Pi Pico — Flexible power regulation for battery or DC-powered projects
- Arduino Nano ESP32 — Compact regulated power supply for embedded systems
- DC Motors and Motor Drivers — Provide adjustable voltage for DC motor speed control
- LED Strips and LED Drivers — Regulate voltage for 12V LED strips or custom LED projects
- LiPo/Li-Ion Battery Systems — Charge or regulate battery-powered electronics
- Solar Panel Systems — Step down solar panel voltage to usable regulated output
- Custom DIY Power Supplies — Build adjustable bench or field power supply units
- Any device requiring 1.25V–36V regulated DC power — Universal step-down regulation