DC-DC Buck Converter 7-100V to 5V-24V Step Down Module | ALLOYSEED
24V / United States
$22.71
Sale price
$22.71
Regular price
$29.45
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DC-DC Buck Converter 7-100V to 5V-24V Step Down Module | ALLOYSEED
$22.71
Sale price
$22.71
Regular price
$29.45
Shipping calculated at checkout.
ALLOYSEED DC-DC Step Down Buck Converter Module – Reliable Voltage Regulation for Any Project
Power your electronics with precision using the ALLOYSEED DC-DC Step Down Power Supply Module. This compact yet powerful buck converter accepts a wide DC input range of 7V to 100V and delivers selectable fixed output voltages of 5V, 9V, 12V, or 24V at up to 2A — making it ideal for DIY electronics, robotics, Arduino projects, solar power systems, and industrial applications alike.
Key Features
- Wide Input Range: Accepts DC 7V–100V input, covering a vast range of power sources including LiPo battery packs, lead-acid batteries, and bench power supplies.
- Multiple Fixed Output Voltages: Choose from 5V, 9V, 12V, or 24V output to suit your specific application needs. Output current: 5V/2A, 9V/2A, 12V/2A, 24V/1.7A.
- Ultra-High Efficiency: Up to 96% conversion efficiency using advanced microelectronics — less heat, more power delivered where it counts.
- Built-In Protection: Equipped with overheating and overload shutdown protection to keep your circuits and devices safe.
- Ultra-Compact Design: Semi-hole mainboard design measures just 25.8 × 16.5mm (1.02 × 0.65 inch) — drops into tight spaces with ease.
- Low No-Load Current: Only 1mA no-load draw and output ripple under 30mA for clean, stable power delivery.
- Wide Operating Temperature: Reliable performance from -40°C to +125°C, suitable for demanding environments.
Technical Specifications
| Input Voltage | DC 7V – 100V (input must exceed output by at least 2V) |
| Output Voltage | 5V, 9V, 12V, 24V (selectable) |
| Output Current | 5V/2A, 9V/2A, 12V/2A, 24V/1.7A |
| Efficiency (Max) | 96% |
| Output Ripple | <30mA |
| No-Load Current | 1mA |
| Operating Temperature | -40°C to +125°C |
| Protection | Overheat & overload shutdown |
| Board Size | 25.80 × 16.50mm / 1.02 × 0.65 inch |
| Country of Origin | Made in Mainland China |
Important Usage Notes
- Always check the wiring diagram before connecting — incorrect wiring may damage the module.
- If output shows no voltage under no-load conditions, connect a load first — output activates under load.
- Connect wires before powering on. Hot-plugging at high voltages may cause sparks or damage.
- For extended high-load use, add adequate heat dissipation (heatsink or fan).
- Not suitable for motors, relays, or inductive loads without adding a 100UF/25V electrolytic capacitor and TVS or SS34 diode in parallel at the output.
- For 72V battery packs or higher inputs, add a 22µF or 47µF/100V electrolytic capacitor in parallel at the input.
What's in the Box
- 1 × DC-DC Step Down Power Supply Module (ALLOYSEED Buck Converter Board)
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For further guidance on electrical safety standards and best practices in electronic component use, refer to the U.S. Consumer Product Safety Commission – Electrical Safety Resources.
Frequently Asked Questions
Q: What input voltage range does this DC-DC buck converter module support?
A: This buck converter module accepts a wide input voltage range of DC 7V to 100V. The input voltage must always be at least 2V higher than the desired output voltage for the module to function correctly. This makes it compatible with a wide variety of DC power sources, from small battery packs to larger industrial supplies.
Q: Can I select different output voltages on this step-down module?
A: Yes! The module supports four selectable fixed output voltages: 5V, 9V, 12V, and 24V. Output current capacity varies by voltage — 5V/9V/12V at up to 2A and 24V at up to 1.7A. Simply configure the output setting before connecting to your circuit.
Q: Is this DC-DC step down module safe for use in sensitive electronics?
A: The module features built-in overheat and overload shutdown protection and delivers very low output ripple (under 30mA), making it suitable for many electronics applications. However, it is not designed for use directly with inductive loads like motors or relays without additional components (such as a 100UF/25V capacitor and TVS diode). Always follow the wiring and usage notes provided.
Q: How compact is this buck converter board?
A: The board measures just 25.80 × 16.50mm (approximately 1.02 × 0.65 inches), making it one of the most compact step-down converter boards available. Its semi-hole mainboard design makes it easy to solder onto a PCB or mount in tight enclosures.
Details
This product is crafted with quality materials to ensure durability and performance. Designed with your convenience in mind, it seamlessly fits into your everyday life.
Shipping & Returns
We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.
We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.
