The Mini 3A DC-DC Step-Down Converter MN60 is a compact, high-efficiency adjustable buck regulator designed to provide a user-configurable output voltage from a higher DC input. With a 3A maximum output current and an adjustable output range, it is an ideal solution for powering a wide variety of electronic devices, prototyping circuits, and custom projects where a specific voltage rail is required.
At the heart of the module is a high-efficiency synchronous buck converter that steps down input voltages from 4.5V to 40V DC to a regulated adjustable output. The output voltage is set via an onboard multi-turn potentiometer, allowing precise adjustment to match your specific application. The conversion efficiency reaches up to 92%, minimizing power loss and heat generation compared to linear regulators.
The 3A continuous output current provides ample power for demanding loads, including microcontrollers, sensors, communication modules, LED lighting, and small motors. The wide input voltage range of 4.5V to 40V makes the module compatible with a broad range of power sources, from 5V USB adapters and 12V batteries to 24V industrial supplies and 36V battery packs.
The mini form factor is a key advantage of this module. Its compact size allows easy integration into space-constrained projects, equipment enclosures, and portable devices. The module features screw terminals or pin headers for secure input and output connections, with clearly labeled terminals for easy wiring. LED indicators provide visual feedback for power status.
The module includes built-in protection circuits including overcurrent protection, thermal shutdown, and short-circuit protection, ensuring safe and reliable operation even under fault conditions. The adjustable output makes this module particularly versatile — it can replace multiple fixed-voltage modules in a workshop or product line.
The module is widely used in prototyping, DIY electronics, microcontroller projects, IoT devices, LED lighting, embedded systems, industrial control, automotive electronics, and any application requiring a stable, adjustable DC voltage from a higher input source.
Important Note: The module requires the input voltage to be higher than the output voltage by at least 1.5V for proper regulation. Always verify the input voltage and current ratings match your application before installation. Ensure adequate ventilation for high-power operation.
Whether you are powering a custom circuit, building a bench power supply, or adding an adjustable rail to a project, the Mini 3A DC-DC Step-Down Converter MN60 provides a reliable, versatile solution. It is suitable for individual makers, engineers, and businesses purchasing in bulk for product development or industrial applications.
Features
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Adjustable output voltage — Set via onboard multi-turn potentiometer
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3A maximum output current — Ample power for a wide range of loads
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Wide input voltage range — 4.5V to 40V DC
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High efficiency — Up to 92% conversion efficiency
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Synchronous buck converter — Low heat generation, no external heat sink required
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Mini compact design — Space-saving form factor for constrained projects
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Built-in protection — Overcurrent, thermal shutdown, and short-circuit protection
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Wide application range — Prototyping, DIY electronics, IoT, LED lighting, automotive
Technical Specifications
| # | Parameter | Specification |
|---|---|---|
| 1 | Module Type | Step-down (buck) converter |
| 2 | Model | MN60 |
| 3 | Output Voltage | Adjustable (via potentiometer) |
| 4 | Maximum Output Current | 3A |
| 5 | Input Voltage Range | 4.5V – 40V DC |
| 6 | Conversion Efficiency | Up to 92% |
| 7 | Protection | Overcurrent, thermal shutdown, short-circuit |
| 8 | Module Dimensions | Mini compact PCB with mounting holes |
