



SparkFun Breadboard Power Supply USB -

5V/3.3V

PRT-08 376 ROH S

Description: A very simple breadboard power supply kit that takes power from any

USB port and outputs a fuse protected and regulated 3.3V. The .1" headers are

mounted on the bottom of the PCB for simple insertion into a breadboard. Pins

labeled 5V/GND 3.3V/GND plug directly into the power lines.

When you plug this board into a breadboard you must be aware that the unused

power and ground pins will short if they are inserted into a bread board row. To avoid

this problem, orient the board so that the unused power pins are left off the side of the

breadboard. You can also orient the board sideways and utilize both 5V and 3.3V at

the same time.

USB v2.0 specifies a max of 500mA at 5V. The on-board fuse limits the current to

500mA. Board has a handy On/Off switch.

Comes as a bag of parts kit and is easily assembled if you can follow the silkscreen

indicators and have beginning experience with a soldering iron. You will need to read

the resistor bands or use a multimeter to determine the resistor sizes.

Check out our Unregulated Power Supply Tutorial!

Kit Contains:

Page 1 of 2