Mini-360 DC-DC buck converter step down power supply module ultra small size 17x11x3.8mm synchronous rectifier buck module with 4.75V-23V input and 1.0V-17V adjustable output up to 1.8A continuous current for electronic projects
Mini-360 Ultra Compact 17mm DC-DC Buck Converter Module with Synchronous Rectification

The Mini-360 DC-DC buck converter represents a space-efficient solution for voltage regulation challenges in modern electronics projects. Measuring just 17x11x3.8mm, this synchronous rectifier buck module converts higher input voltages to lower, adjustable outputs with minimal board space consumption. Its 4.75V-23V input range accommodates various power sources, from USB supplies to battery packs, while providing adjustable output from 1.0V to 17V for powering microcontrollers, sensors, and other low-voltage components. The module's synchronous rectification architecture achieves up to 96% conversion efficiency, reducing thermal issues and extending battery life in portable applications. With its miniature footprint and flexible voltage adjustment, it serves as a practical voltage matching tool for hobbyists, educators, and electronics professionals working on space-constrained designs.
Features and Construction

The Mini-360 combines compact physical design with specified electrical performance parameters for reliable voltage conversion applications. Its ultra-small dimensions make it suitable for retrofitting existing projects or designing new circuits where board real estate is limited. The module's construction balances miniaturisation with functional requirements through careful component selection and layout.
Material and Build
This buck converter module employs an integrally moulded power inductor that combines magnetic core and winding into a single compact package, reducing the space traditionally required for discrete inductor components. The synchronous rectifier control chip replaces conventional diode-based rectification with active switching elements, improving efficiency by reducing voltage drop losses. These material choices directly support the module's miniature 17x11x3.8mm dimensions while maintaining the electrical characteristics necessary for buck conversion operation. The green soldermask finish provides standard PCB protection without additional decorative claims.
Size and Practical Fit
With dimensions of 17mm length, 11mm width, and 3.8mm height, the Mini-360 occupies minimal volume compared to traditional voltage regulators. This compact footprint allows installation in locations where larger linear regulators or switching converters won't physically fit, such as between existing components on crowded circuit boards or within small enclosures. The module's size advantage comes from component integration rather than performance compromise, maintaining specified electrical parameters within its miniature form factor. This dimensional specification makes it particularly valuable for projects with strict space constraints or weight limitations.
Uses and Placement

The Mini-360's combination of adjustable output voltage, wide input range, and compact size supports diverse applications across electronics fields. From educational demonstrations to professional prototyping, its technical specifications address common voltage conversion requirements while fitting into space-limited environments.
Event or Professional Use
In professional electronics development, the module serves as a quick prototyping tool for testing power supply configurations without designing custom regulator circuits. Its adjustable output from 1.0V to 17V supports testing various microcontroller voltages, sensor operating ranges, and display power requirements. The 4.75V-23V input range accommodates laboratory power supplies, battery packs, and wall adapters commonly used in development environments. For event electronics or temporary installations, the module's -40°C to +85°C operating temperature range provides reliability across different environmental conditions without requiring thermal management systems.
Everyday Home Use
For electronics hobbyists and home project builders, the Mini-360 enables safe voltage matching between available power sources and sensitive components. It can convert 12V adapter output to 5V for Arduino projects, reduce 9V battery voltage to 3.3V for sensors, or provide adjustable voltage for testing LED brightness levels. The module's 1.8A continuous output current supports typical hobbyist requirements like powering multiple sensors or small motor drivers. Its compact size allows discreet integration into finished projects without bulky external regulators, maintaining clean aesthetics in visible installations.
Benefits and Buying Value

The Mini-360 delivers practical advantages through its combination of technical specifications and physical design characteristics. These benefits translate to tangible value for users facing specific voltage conversion challenges in their projects.
Reuse and Low Maintenance
As a self-contained module with clearly defined input and output connections, the Mini-360 can be reused across multiple projects without requiring circuit redesign. Its adjustable output voltage via potentiometer allows quick adaptation to different voltage requirements, extending its useful life across evolving project needs. The synchronous rectification architecture with up to 96% efficiency generates less waste heat than less efficient converters, reducing thermal stress on components and potentially extending operational lifespan. With no moving parts and solid-state construction, it requires minimal maintenance beyond basic electrical connections.
Why Choose This Product
The Mini-360 addresses the specific need for compact, efficient voltage conversion in space-constrained electronics applications. Its 17mm length represents a tangible size advantage over typical buck converters while maintaining full adjustability from 1.0V to 17V output. The synchronous rectification design with specified 96% maximum efficiency provides measurable performance improvement over basic diode-based converters commonly available in similar form factors. For projects where every millimetre of board space matters or where efficient power conversion affects battery life, these concrete specifications offer clear selection criteria. The module's combination of miniature dimensions, adjustable output, and specified efficiency parameters creates a practical solution for voltage matching challenges where larger alternatives won't fit.
