Mini-360 DC Buck Converter 4.75V-23V to 1.0V-17V Synchronous Rectifier Module

The Mini-360 DC buck converter is an ultra-small non-isolated step-down power module built around synchronous rectification and an integrally moulded power inductor. It accepts an input voltage from 4.75V to 23V and provides an adjustable output from 1.0V to 17V, making it relevant for breadboard prototyping, small embedded projects, and DIY electronics where a compact adjustable supply is needed. The module is rated for up to 3A peak output, with 1.8A recommended for long-term operation, and reaches a maximum conversion efficiency of 96%. Its green board measures just 17 x 11 x 3.8mm (L x W x H), so it can fit into confined enclosures or alongside other components on tight layouts.

Features and Construction

The Mini-360 uses a non-isolated buck topology with synchronous rectification, a design choice stated in the source data. This approach, together with the integrally moulded power inductor, supports the compact dimensions and the quoted maximum efficiency of 96%. The module switches at 340KHz and is rated for a working temperature range of -40°C to +85°C.

Material and Build

The source lists an integrally moulded power inductor and a synchronous rectifier control chip as key parts of the module. These two elements define the construction: the inductor is formed as a single moulded component rather than a conventional wound type, and the control chip manages synchronous rectification. The result is a module that is smaller and more efficient than the description implies for a standard buck converter, though no further performance claims are made here beyond the stated 96% maximum efficiency, 340KHz switching frequency, and non-isolated buck classification. The green colour refers to the module as supplied, and the board dimensions are 17 x 11 x 3.8mm.

Size and Practical Fit

At 17 x 11 x 3.8mm, the Mini-360 is small enough to sit on many breadboards and inside compact project boxes. Its low height of 3.8mm helps where vertical clearance is limited, such as stacked circuit boards or slim enclosures. The 4.75V to 23V input range and 1.0V to 17V output range give useful flexibility, but the board does not include mounting holes or a heatsink in the source data, so physical support must come from the surrounding circuit or enclosure. The 1.8A continuous and 3A peak current ratings should be respected to avoid overheating, particularly at higher input-output differentials.

Uses and Placement

The module is intended for stepping down a higher DC supply to a lower, adjustable DC level. Typical applications supported by the source data include small electronics projects, bench prototyping, and powering sub-circuits that need a stable low voltage. It is not described as waterproof, isolated, or suitable for mains voltages.

Event or Professional Use

In workshop or lab settings, the Mini-360 can act as a compact adjustable supply for testing sensors, microcontrollers, and low-power modules. The stated load regulation of ±0.5% and voltage regulation of ±2.5% indicate how tightly the output is held under changing load and input conditions, which is useful when a project is sensitive to supply variation. The 30mV no-load ripple figure gives an indication of residual switching noise when no load is connected. For professional or educational use, the module should be mounted securely and operated within its -40°C to +85°C temperature range.

Everyday Home Use

For home electronics, the module can help power small DC devices from a higher-voltage adapter or battery pack, provided the input stays within 4.75V to 23V and the output is adjusted within 1.0V to 17V. It may suit hobby projects such as LED setups, small fans, or microcontroller boards that require a lower regulated rail. Because the source does not describe an enclosure, the board should be kept in a dry location and protected from accidental contact. The green module is supplied as a single unit, so the quantity is one piece unless ordered in a different option.

Benefits and Buying Value

The main practical value of the Mini-360 lies in its small size, wide input and output ranges, and synchronous rectifier design. It offers a way to add an adjustable step-down stage without using a large converter board, and the stated efficiency and regulation figures support its use in low-power projects.

Reuse and Low Maintenance

As a solid-state module with no moving parts listed in the source data, the Mini-360 has no stated wear items. Maintenance is limited to keeping it dry, clean, and within its temperature and current ratings. The module can be reused across different projects as long as the input and output limits are observed. No lifespan or cycle count is provided, so no claim is made about long-term durability beyond the stated operating temperature range.

Why Choose This Product

Choose the Mini-360 when a very small, adjustable non-isolated buck converter is needed for a DC project. Its 4.75V to 23V input and 1.0V to 17V output ranges, 3A peak and 1.8A continuous current ratings, 96% maximum efficiency, 340KHz switching frequency, 30mV no-load ripple, ±0.5% load regulation, and ±2.5% voltage regulation are the key source-supported specifications. The 17 x 11 x 3.8mm green board is suited to compact builds where space is limited. Buyers should note that only the module is included and that the source does not list an enclosure, wiring, or mounting hardware.