MT3608 DC-DC Boost Converter 2A – Step-Up Module 2V–24V to 5V/9V/12V/28V Adjustable

A compact and efficient MT3608 DC-DC boost converter designed to step up lower voltages to higher, adjustable output levels. With a wide input range of 2V to 24V, this module can boost voltage up to 28V, making it ideal for a wide range of power applications.

Perfect for Arduino, ESP32, battery-powered systems, and DIY electronics, this module allows you to easily generate stable voltages such as 5V, 9V, or 12V from lower voltage sources.

Key features

• Step-up (boost) converter – output voltage always higher than input
• Wide input voltage range: 2V – 24V
• Adjustable output voltage up to 28V
• Up to 2A output current (with proper conditions)
• High efficiency of up to 93%
• Compact and lightweight design
• Onboard multi-turn potentiometer for precise adjustment

How to use

1. Connect your input power supply to IN+ and IN- (2V–24V)
2. Measure the output on OUT+ and OUT-
3. Adjust the onboard potentiometer to set the desired output voltage

Note: The output voltage must always be set higher than the input voltage.

Pinout

• IN+ – Input positive
• IN- – Input negative (GND)
• OUT+ – Output positive
• OUT- – Output negative (GND)

Specifications

Common applications

• Boosting 3.7V battery to 5V USB power
• Powering 9V or 12V devices from lower voltage sources
• DIY power supplies and voltage regulation
• Arduino and ESP32 projects
• Portable electronics and battery systems
• LED drivers and small motors

Important notes

• Not a step-down module – cannot reduce voltage
• Maximum current depends on input/output conditions and cooling
• Always verify output voltage before connecting sensitive devices

Tip: For stable 5V output from a lithium battery (3.7V), adjust the module carefully using a multimeter before connecting your device.