3.1 Power Supply

The board can be powered alternatively through:

• USB power
• External power source

The supply connector switch J2 offers both options.

The MTB has a boost converter (MCP1642B-ADJI/MS) which generates a constant output voltage of 5V with varying input from 1.8V to 5V as well as a buck converter (MIC23201) which will convert 5V down to 3.3V on targeted sections.

Power Supply Block Diagram