MT3608 Boost Converter Module

Key Specifications:

• Input Voltage: 2V - 24V

• Output Voltage: 5V - 28V (adjustable)

• Max Output Current: ~2A (limited by heat dissipation)

• Efficiency: Up to 97%

• Conversion Type: DC-DC step-up (boost)

• Adjustable Output: Via a multi-turn potentiometer

Features:

1. Step-Up Conversion:

   • Increases a lower voltage (e.g., 3.7V from a lithium battery) to a higher voltage (e.g., 5V, 9V, or 12V).

2. Compact and Efficient:

   • High power conversion efficiency (~97%) helps minimize power loss.

3. Adjustable Output Voltage:

   • The onboard potentiometer allows precise voltage adjustment.

4. Integrated Overcurrent Protection:

   • Prevents excessive current draw, protecting the module.

Typical Applications:

• Powering 5V Arduino projects from a 3.7V lithium battery.

• Boosting 3.3V to 5V for ESP8266/ESP32 modules.

• Driving 12V loads from USB power sources.

• LED drivers and portable power banks.

How to Use:

1. Connect Input Voltage (2V–24V)

   • VIN+ → Positive input (e.g., battery or power source).

   • VIN- → Negative input (ground).

2. Connect Output Voltage Load

   • VOUT+ → Positive output.

   • VOUT- → Negative output (ground).

3. Adjust the Output Voltage

   • Turn the potentiometer (small screw on the module) clockwise to increase voltage.

   • Turn it counterclockwise to decrease voltage.

⚠ Warning: The MT3608 only boosts voltage, it cannot step down a voltage.

Limitations & Considerations:

• Current Limit: Practical output current is ~1A–1.5A without significant heating.

• Heat Management: If drawing high currents, consider adding a heatsink.

• Input Voltage Must Be Lower Than Output: This module cannot step down voltage.