ShillehTek MT3608 DC-DC step up boost converter blue circuit board

MT3608 DC-DC Step-Up Boost Converter 2A Adjustable Power Module for Arduino

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MT3608 DC-DC boost converter lets you step up 2-28V inputs to precise 5-12V outputs with a multi-turn trimpot; compact, efficient 2A peak current for Arduinos, motors and sensors.

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Overview

Product Overview

Convert a single-cell battery into a flexible power source with the MT3608 DC-DC step-up module — it steps low-voltage inputs (for example a 3.7V Li‑ion) up to common voltages such as 5V, 9V, or 12V for Arduino boards, motors, and sensors. The board operates from low inputs (around 2V) and can be adjusted for higher outputs commonly used up to about 28V, delivering reliable performance in portable projects. The switch-mode regulator is designed for efficiency (up to 93%) to preserve battery life, and a precision multi-turn trimmer lets you fine-tune the output; note the potentiometer may require roughly 15–20 counter-clockwise turns before the voltage begins to change. Compact and maker-focused, it’s a practical choice for DIY power solutions with up to 2A peak output and a high-sensitivity trimpot for accurate tuning.

Questions & answers

Frequently asked questions

Yes. This boost converter can raise a low-voltage battery source, such as a single-cell 3.7V Li-ion, to common Arduino supply voltages like 5V, 9V, or 12V when adjusted correctly for the connected board or load.
Connect the input source and load, then adjust the onboard multi-turn trimmer while measuring the output with a multimeter. The potentiometer may need roughly 15–20 counter-clockwise turns before the output voltage starts changing.
The module is a DC-DC step-up converter, so its output is set higher than the input. It operates from low inputs around 2V and is commonly adjusted to outputs up to about 28V, with up to 2A peak output depending on conditions.
It is commonly used to power 5V, 9V, or 12V project loads from a single-cell battery. Typical uses include portable Arduino builds, sensor power supplies, small motor projects, and DIY battery-powered electronics.
If the voltage does not change, keep turning the multi-turn potentiometer counter-clockwise while checking with a multimeter; it can take many turns before responding. Also confirm the input battery is connected correctly and the load does not exceed the module’s capability.

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What's included

Features & Specs

Output Range Boosts input voltages from around 2V up to 28V output for wide compatibility.

Maximum Current Provides up to 2A peak output current to power motors, relays, and LED arrays.

Input Compatibility Works with single-cell batteries such as 3.7V Li-ion and other low-voltage sources.

High Efficiency Switch-mode design achieves efficiency up to 93% to extend battery run time.

Precision Adjustment Multi-turn trimmer potentiometer allows fine voltage tuning, with initial 15–20 turns required before change.

DIY Applications Ideal for building portable power banks, USB chargers, and powering Arduino boards and sensors.

Reference

Documents

Full Product Manual ShillehTek MT3608 DC-DC Step Up Boost Converter 2A Adjustable Power Module | ShillehTek Product Manual In-depth setup guide with wiring, code examples, and troubleshooting.

Datasheet

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