Mini-360 Synchronous DC-DC Buck Converter: Compact 17mm Module with 96% Efficiency and 4.75-23V Input Range

The Mini-360 represents an ultra-compact solution for DC voltage step-down applications where board space is at a premium. Measuring just 17mm in length, this synchronous rectification buck converter efficiently transforms input voltages between 4.75V and 23V down to adjustable outputs from 1.0V to 17V. With maximum conversion efficiency reaching 96%, it minimises power loss while delivering up to 1.8A continuous current. The module's miniature footprint makes it particularly suitable for embedded systems, portable electronics, and IoT devices where efficient power regulation must coexist with tight spatial constraints.

Features and Construction

Built around synchronous rectification technology, the Mini-360 employs an integrally moulded power inductor alongside its control chip to achieve both compact dimensions and high efficiency. The green printed circuit board hosts all components within its 17x11x3.8mm form factor, creating a complete buck converter solution requiring minimal external components.

Material and Build

The module utilises a standard green fibreglass PCB as its substrate, with surface-mounted components including the synchronous rectifier control chip and integrally moulded power inductor. This construction approach eliminates the need for separate discrete inductors, contributing directly to the module's miniature dimensions. The synchronous rectification topology replaces conventional diode-based designs with active switching elements, reducing forward voltage drop and improving overall efficiency across the operating range.

Size and Practical Fit

With external dimensions of 17mm length by 11mm width by 3.8mm height, the Mini-360 occupies minimal board space while providing complete buck conversion functionality. The compact form factor enables installation in tightly packed electronic assemblies where conventional converters would prove too large. The module's low profile facilitates mounting in shallow enclosures, while standard 2.54mm pin spacing allows straightforward integration with prototype boards and custom circuits.

Uses and Placement

The Mini-360's combination of wide voltage range, adjustable output, and compact size supports diverse applications from professional prototyping to final product integration. Its ability to operate across industrial temperature ranges from -40°C to +85°C expands deployment possibilities beyond typical consumer electronics environments.

Event or Professional Use

In professional and industrial settings, the module serves as a reliable voltage regulator for sensor networks, control systems, and instrumentation requiring stable low-voltage supplies. The 340KHz switching frequency keeps electromagnetic interference manageable while maintaining good transient response. With load regulation specified at ±0.5% and voltage regulation at ±2.5%, the converter provides sufficient precision for many analogue and digital circuits without requiring additional regulation stages.

Everyday Home Use

For electronics enthusiasts and makers, the Mini-360 offers a convenient solution for powering Arduino projects, Raspberry Pi accessories, LED lighting arrays, and other hobbyist applications. The adjustable output voltage via onboard potentiometer allows fine-tuning for specific components, while the wide input range accommodates various power sources including 12V adapters, USB power banks, and lithium battery packs. The module's simple three-terminal interface (input, output, ground) ensures straightforward implementation even for those with basic electronics knowledge.

Benefits and Buying Value

Beyond its physical compactness, the Mini-360 delivers practical advantages through efficient operation, thermal resilience, and design flexibility. The synchronous architecture combined with high-quality components provides reliable performance across the specified operating conditions.

Reuse and Low Maintenance

The module's robust construction supports repeated use across multiple projects, with the integrally moulded inductor resisting physical damage that might affect discrete components. With no moving parts and solid-state design, maintenance requirements are minimal beyond ensuring proper voltage and current limits are observed. The -40°C to +85°C operating temperature range provides margin for various environmental conditions without performance degradation.

Why Choose This Product

This buck converter distinguishes itself through the combination of synchronous rectification efficiency and ultra-compact dimensions not commonly found together in budget modules. The 96% peak efficiency reduces heat generation and extends battery life in portable applications, while the 30mV no-load output ripple and tight regulation specifications support sensitive electronic circuits. The module represents a complete power conversion solution requiring only input/output connections and optional output adjustment, eliminating the component selection and layout challenges of designing a custom buck converter from discrete elements.