184 ADAFRUIT | Alldatasheet
Document overview
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Technical content
Adjustable breadboard power supply kit - v1.0 PRODUCT ID: 184 Description This kit is for making your own breadboard-friendly very low dropout adjustable power supply. A good power supply is essential to electronic projects. While there are many existing designs for adjustable power supplies, this one makes improvements that make it more useful for hobby designs o MIC2941 regulator has guaranteed 1.25A output o Low dropout, only 40mV - 400mV compared to 1.25V - 2.0V for LM317. This means you can use a wider range of output voltages including generating 3.3V from as low as 3.7V (such as 3 AA's or a lithium ion battery)! o Short circuit and overheating protection o Input diode to protect circuitry from negative voltages or AC power supplies. o 2.1mm DC jack and terminal connector for voltage inputs o Two indicator LEDs for high and low voltages o Output selection switch to select from 3.3v, 5v and Adjustable (also has a breakout for the voltage you're powering the boad with) o Onboard potentiometer for adjusting voltage from 1.25V up to within 0.5V of the input voltage. (20V max) o On/Off switch for entire board o Heat sink included
Project kit comes as components to be soldered to the included PCB. It's not a difficult project, about 30-45 minutes with a soldering iron. Even beginners can make it! You'll need a soldering iron, solder, diagonal cutters and a PCB holder such as a helping hand tool. Breadboard and battery clip or DC power supply is not included, you can use any DC power supply with 2.1mm plug (we have a nice one in the shop). Technical Details Details: o Dimensions(PCB only): 54mm x 21mm x 1.6mm (2.1in x 0.8in x 0.06in) o Dimensions(assembled): 54mm x 43mm x 16.6mm(2.1in x 1.7in x 0.6in) o Weight: 16g / 0.5oz Engineered in NYC Adafruit ®