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Project Notes

#862 MT3608 Boost Converter Modules

Low-cost boost converter modules based on the MT3608 IC, with optional USB input connectors, and output adjustable up to 28V from input 2V~24V DC.

Build

Notes

MT3608-based boost converter modules are available from many sources. The aliexpress seller I purchased from offers the module in 3 variants. It is the same board but with different input connectors:

  • input and output connector pads for solder or mechanical connection
  • micro USB input connector
  • USB-C input connector

modules

I am testing the module with the micro USB connector:

module

About the MT3608

The MT3608 (parts also produced as the B6286) is a very efficient boost converter that can deliver up to 24V at 4A. It requires only 6 external passive components, and is readily available as a complete module for as little as $0.40.

  • 2V to 24V Input Voltage
  • 1.2MHz Fixed Switching Frequency
  • Internal 4A Switch Current Limit
  • Internal Compensation
  • Up to 28V Output Voltage
  • Automatic Pulse Frequency Modulation Mode at Light Loads
  • up to 97% Efficiency
  • SOT23-6 package

MT3608_functional

Quick Test

With 5V input, testing regulation at 12V output:

bb-test-12v

Credits and References

About LEAP#862
PowerSMPSBoost ConverterStep-up ConverterMT3608

This page is a web-friendly rendering of my project notes shared in the LEAP GitHub repository.

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LEAP is my personal collection of electronics projects - usually involving an Arduino or other microprocessor in one way or another. Some are full-blown projects, while many are trivial breadboard experiments, intended to learn and explore something interesting.

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