# Adjustable breadboard power supply kit - v1.0

**Type:** Product page · **SKU:** ADA184 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/adjustable-breadboard-power-supply-kit-v1-0.html ([markdown](https://core-electronics.com.au/adjustable-breadboard-power-supply-kit-v1-0.html.md))

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...

## Pricing

- **Price:** $27.25 (inc GST) — $24.77 AUD, exc GST
- **Quantity discounts:** 10+ $24.03 (exc GST) · 50+ $23.54 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 26 and Aug 31.

## 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

- MIC2941 regulator has guaranteed 1.25A output
- 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)!
- Short circuit and overheating protection
- Input diode to protect circuitry from negative voltages or AC power supplies.
- 2.1mm DC jack and terminal connector for voltage inputs
- Two indicator LEDs for high and low voltages
- Output selection switch to select from **3.3v,**  **5v** and **Adjustable** (also has a breakout for the voltage you're powering the boad with)
- Onboard potentiometer for adjusting voltage from 1.25V up to within 0.5V of the input voltage. (20V max)
- On/Off switch for entire board
- 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).For design documents, instructions, parts list, etc. Check out the project webpage!

## Technical Details

Details:

- Dimensions(PCB only): 54mm x 21mm x 1.6mm (2.1in x 0.8in x 0.06in)
- Dimensions(assembled): 54mm x 43mm x 16.6mm(2.1in x 1.7in x 0.6in)
- Weight: 16g / 0.5oz

[EagleCAD PCB files, schematic, and Fritzing available in the product tutorial](https://learn.adafruit.com/adjustable-breadboard-power-supply-kit/downloads)

 ![](https://core-electronics.com.au/attachments/localcontent/rohs_icon_8216055e11.jpg)

## Guides for this product

- [Our recommendation on Breadboard Power Supplies](https://core-electronics.com.au/guides/prototyping/our-recommendation-for-breadboard-power-supplies-1/)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/1/8/184-00.jpg)