The MT3608 DC Boost Converter Module is a small but powerful electronic component widely used in DIY electronics and embedded systems. If you're working with electronics and need to increase a low voltage to a higher voltage, this module can be your best friend.
In this article, we’ll explore what the MT3608 is, how it works, where you can buy it, what projects you can make with it, and much more. Whether you're a beginner, student, or hobbyist, this guide is perfect for you.
🔧 What is the MT3608 DC Boost Converter?
The MT3608 is a step-up (boost) DC-DC converter module based on the MT3608 chip. It is designed to increase (boost) a lower DC voltage input to a higher DC output voltage. It’s compact, affordable, and widely used in battery-powered projects.
✅ Key Features:
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Input Voltage: 2V to 24V DC
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Output Voltage: 5V to 28V DC (adjustable via potentiometer)
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Maximum Output Current: ~2A (with proper cooling)
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Efficiency: Up to 93%
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Size: ~22mm x 17mm
🧠 What Is It Used For?
The MT3608 has a variety of applications. Here are some common use cases:
1. Powering 5V devices with 3.7V batteries
If you’re using Li-ion or Li-Po batteries (3.7V) and want to power a 5V device like an Arduino, MT3608 is ideal.
2. DIY Portable Chargers
You can use this module to convert battery voltage to charge smartphones or USB-powered devices.
3. Solar-Powered Projects
If your solar panel provides low voltage, MT3608 helps step it up to charge batteries or run electronics.
4. LED Strip or Fan Projects
Need 12V from a 5V supply? MT3608 handles it effortlessly.
💰 How Much Does MT3608 Cost?
The MT3608 module is very cheap. It usually costs between ₹25 to ₹80 (INR) depending on the quantity, quality, and seller.
| Quantity | Approx Price (INR) |
|---|---|
| 1 Piece | ₹30 - ₹60 |
| 5 Pieces | ₹25 - ₹35 each |
| 10+ | ₹20 - ₹30 each |
Prices may vary slightly depending on offers, shipping, and quality.
🛒 Where Can You Buy It?
You can buy the MT3608 DC Boost Converter Module from popular online electronics stores in India and globally.
🏪 Indian Websites:
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Robu.in – https://robu.in
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Amazon India – https://amazon.in
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ElectronicsComp.com – https://electronicscomp.com
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Makerbazar(Preferable)– https://makerbazar.in/
🌎 Global Sites:
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AliExpress – https://aliexpress.com
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eBay – https://ebay.com
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Banggood – https://banggood.com
Always compare prices and check customer reviews before buying.
🛠️ Projects You Can Build Using MT3608
Here are some cool electronics projects you can create using this tiny module:
1. DIY Power Bank
Use a 3.7V battery + MT3608 to build a custom power bank with a 5V USB output.
2. Arduino Projects with Li-ion Battery
Use a single-cell Li-ion battery and MT3608 to run Arduino boards that require 5V.
3. Boost Solar Charger
Create a solar-powered battery charger by stepping up the panel’s voltage.
4. Portable Fan or LED Lamp
Make a portable fan or LED lamp using a 3.7V battery and boost it to 12V or 5V using MT3608.
5. Battery Life Extender
Even when a battery's voltage drops below usable range, MT3608 can keep the output steady.
⚡ How to Use MT3608? (Simple Guide)
🧰 You’ll Need:
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MT3608 Module
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Input power source (e.g., 3.7V battery)
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Multimeter (to measure output voltage)
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Load (Arduino, LED, fan, etc.)
🪛 Steps:
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Connect IN+ and IN- to your battery or power source.
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Use a multimeter on the OUT+ and OUT- to measure output voltage.
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Rotate the potentiometer (blue knob) slowly to increase/decrease output voltage.
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Connect your load (e.g., Arduino) once the desired voltage is set.
⚠️ Note: Always set the voltage first before connecting sensitive electronics.
🔌 MT3608 Based Project Ideas
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DIY 5V Power Bank using 18650 Battery
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Solar Battery Charger (Boosting Low Solar Voltage)
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Power Arduino Board with Single 3.7V Battery
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Portable 12V Fan using 3.7V Battery
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Rechargeable LED Lamp (Boost to 5V or 9V)
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ESP8266 WiFi Project Powered by Li-ion Battery
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Low Voltage to USB Output Converter (USB Charger)
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Mini Bluetooth Speaker Powered by 3.7V Battery
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Boost Power Supply for Robotics (like servo motors)
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Run a Raspberry Pi Pico on 3.7V Battery via MT3608
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Battery-Powered Air Quality Monitor
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Step-Up Module for Wearable Electronics
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DIY Smartwatch Charging Dock from 3.7V Cell
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Remote Weather Station powered by Li-ion + MT3608
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Rechargeable Laser Pointer or Torch
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DIY GPS Tracker Powered by Boosted Battery Voltage
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Boost Converter Circuit Tester Tool
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Voltage Regulated Battery Backup for Modem/Router
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DIY USB Gadget Tester (5V Output via MT3608)
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Mini 12V Water Pump Using 3.7V Input
🧠 Tips for Safe Use
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Do not exceed input voltage beyond 24V.
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Ensure you don’t overload it above 2A.
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Use heatsink or proper ventilation for higher loads.
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Always check voltage before connecting to microcontrollers.
📦 MT3608 vs Other Modules
| Feature | MT3608 | XL6009 | LM2596 (Step-down) |
|---|---|---|---|
| Voltage Type | Boost (Step-up) | Boost | Buck (Step-down) |
| Max Output Voltage | 28V | 35V | 35V |
| Use Case | Increase voltage | Increase voltage | Decrease voltage |
MT3608 is compact and best suited for small projects, while XL6009 handles higher power.
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📚 Final Thoughts
The MT3608 DC Boost Converter Module is a budget-friendly, compact, and efficient solution to convert low voltage to high voltage for electronics projects. Whether you're working with batteries, building portable gadgets, or experimenting with Arduino boards, this module is a must-have in your toolkit.
It’s available easily online, works like a charm, and opens the door to countless DIY possibilities.
Start your project today with the MT3608 — power up your ideas! 🔋⚙️
