Mini 360 DC Buck Converter: Compact 17mm Module with 96% Efficiency and 1-17V Output

The Mini 360 DC-DC buck converter module is an ultra-small, synchronous rectifier step-down power supply designed for space-constrained electronic applications. Its primary function is to efficiently reduce a higher DC input voltage to a stable, lower DC output, which is essential for powering microcontrollers, sensors, LEDs, and other low-voltage components from common power sources like 12V adapters or lithium battery packs. The module's integrally moulded power inductor and specialised control chip allow it to achieve a compact footprint of just 17mm by 11mm while maintaining a high 96% maximum conversion efficiency. This makes it a practical choice for hobbyists, prototypers, and engineers looking to integrate efficient voltage regulation into portable devices, custom power supplies, or embedded systems without sacrificing valuable board space.

Features and Construction

The Mini 360 module's design prioritises efficiency and miniaturisation through specific technical choices. Its build and specifications are geared towards reliable performance in a very small form factor, suitable for embedding into finished products or using on breadboards for prototyping.

Material and Build

The module's construction centres on an integrally moulded power inductor, which contributes significantly to its reduced size compared to converters using traditional discrete inductors. This component works in tandem with a synchronous rectifier control chip, a design that replaces the standard diode with a more efficient transistor switch to minimise voltage drop and power loss during the conversion cycle. These elements are mounted on a standard printed circuit board (PCB) measuring 17mm by 11mm, with a total module height of 3.8mm. The use of surface-mount technology (SMT) for its components is what enables this low profile, making it easy to fit into tight enclosures or stack with other boards.

Size and Practical Fit

The external dimensions of 17mm in length, 11mm in width, and 3.8mm in height define the module's physical footprint. This ultra-small size is a key differentiator, allowing it to be used in projects where space is at a premium, such as within drone avionics, wearable electronics, or compact sensor nodes. The 3.8mm height includes all components, meaning it can often fit in spaces that taller modules cannot. When planning your project, these exact measurements allow for precise layout design on a PCB or within an enclosure, ensuring a reliable fit alongside other components.

Uses and Placement

With its adjustable output and efficient design, the Mini 360 converter serves both prototyping and final-product applications. Its electrical characteristics make it versatile for stepping down voltage from common sources to the levels required by modern digital and analog circuits.

Event or Professional Use

In professional or event settings, such as powering exhibition displays, portable diagnostic equipment, or temporary lighting installations, the module's wide 4.75V to 23V input range provides flexibility. You can power it from a car battery (approx. 12V), a multi-cell lithium pack, or a standard mains adapter. Its high 96% efficiency means less energy is wasted as heat, which is crucial for battery-operated professional tools or equipment that runs for extended periods. The broad -40°C to +85°C operating temperature range also ensures reliability in environments that are not climate-controlled, from cold storage areas to sun-exposed outdoor setups.

Everyday Home Use

For home electronics projects, the Mini 360 is ideal for creating custom USB power ports from 12V sources, building efficient LED strip drivers, or providing clean power to Raspberry Pi or Arduino boards from a higher-voltage supply. The adjustable output, set via a small potentiometer from 1.0V to 17V, allows it to match the exact voltage required by your components, whether that's 3.3V for logic circuits or 5V for USB devices. Its 1.8A continuous current rating supports a wide array of common hobbyist components without overheating, while the 3A maximum peak rating handles brief surges in demand.

Benefits and Buying Value

The value of this converter lies in its combination of small size, electrical efficiency, and reliable performance. It addresses the common need for efficient voltage regulation without occupying excessive space on a project build.

Reuse and Low Maintenance

As a solid-state module with no moving parts, it requires no maintenance and is designed for reuse across multiple projects. The robust operating temperature range and stable performance metrics—like the ±0.5% load regulation and ±2.5% voltage regulation—contribute to its longevity. The 30mV no-load output ripple specification indicates a relatively clean output, which helps protect sensitive digital components from electrical noise over time. This reliability means you can confidently move the module from a prototype on a breadboard to a permanent installation in a finished device.

Why Choose This Product

You would choose the Mini 360 buck converter when your project demands an efficient voltage step-down solution in the smallest possible footprint. Its key advantages are the concrete specifications: the 17x11x3.8mm size, the 96% maximum efficiency, the 4.75-23V input range, and the 1.8A continuous output. Compared to generic or larger linear regulators, this module provides switching efficiency that reduces heat buildup and extends battery life. The synchronous rectification technology is a more advanced feature typically found in higher-end converters, here packaged into a very affordable and accessible module. It provides a practical, specification-backed solution for efficient power conversion where space and efficiency are primary concerns.