UBEC DC/DC Step-Down (Buck) Converter - 5V @ 3A output

SKU: ADA1385

$18.90 AUD, inc GST

$17.18 AUD, exc GST

UBEC DC/DC Step-Down (Buck) Converter - 5V @ 3A output ADA1385 Adafruit in Australia - Express Delivery Australia Wide (Feature image)

UBEC DC/DC Step-Down (Buck) Converter - 5V @ 3A output ADA1385 Adafruit in Australia - Express Delivery Australia Wide (Image 1)

UBEC DC/DC Step-Down (Buck) Converter - 5V @ 3A output ADA1385 Adafruit in Australia - Express Delivery Australia Wide (Image 2)

More Views

UBEC DC/DC Step-Down (Buck) Converter - 5V @ 3A output

18.9 AUD

SKU: ADA1385

$18.90 AUD, inc GST

$17.18 AUD, exc GST

3 reviews 0 5 5

3 Review(s) | Add Your Review

Brand: Adafruit

Share a project for this product

Shipping:

$6.95 Standard (2-4 days, tracked)
$9.95 Express (Overnight*, tracked)
$3 Economy Post* (3-7 days, no tracking)
FREE Pickup (Newcastle only)

Shipping costs may increase for heavy products or large orders.

Exact shipping can be calculated on the view cart page.

*Conditions apply, see shipping tab below.

Your power supply problems just got SOLVED! This little circuit board may look tiny but inside is a high efficiency DC/DC step-down converter which can output up to 3 Amp at 5V without the need of any heat-sink or forced cooling. (It does get a bit toasty at 3A though) UBEC stands for "universal battery eliminator circuit" and this UBEC is designed to replace a 5V supply in RC planes and 'copters but its also great for any kind of microcontroller or electronics project that runs off of 5V. Adafruit tried a half dozen different 'BECs and found this one to be the best in terms of range and stability. You can check the technical tab for the analysis of input/output range and current draw.

To use, connect 6V up to 16V (recommended) to the IN-side wires and 5V will be generated on the OUT-side wires. You'll get 5V (+-5%) regulated output from higher voltage input. 3A output current, 5A peak - if you're trying to draw 3A you'll need to give it a little more than 6V though, 7V works well. The UBEC has built in filter capacitors on the input and output, but its a switching supply so its a little noisy compared to a linear regulator.

Adafruit pulled the heatshrink off of one and found an MP2307 you can check the datasheet for conversion efficiency and other specifications.

UBEC DC/DC Step-Down (Buck) Converter - 5V @ 3A output (0:40)

Technical Details

Adafruit pulled the heatshrink off of one and found an MP2307 you can check the datasheet for conversion efficiency and other specifications. The input capacitor might be rated for 16V max.

Here are some numbers Adafruit found when attaching various loads to the UBEC:

Iout	Vin	Iin	Vout
0.5A	6V	0.47A	4.9V
0.5A	7V	0.39A	5.2V
0.5A	9V	0.35A	5.2V
0.5A	12V	0.28A	5.25V
Iout	Vin	Iin	Vout
1A	6V	0.9A	4.8V
1A	7V	0.79A	5.2V
1A	9V	0.67A	5.1V
1A	12V	0.52A	5.2V
Iout	Vin	Iin	Vout
2A	6V	1.85A	4.9V
2A	7V	1.67A	5.1V
2A	9V	1.28A	5.0V
2A	12V	0.97A	4.9V
Iout	Vin	Iin	Vout
3A	7V	2.6A	5.0V
3A	9V	1.88A	4.7V
3A	12V	1.43A	4.8V

The Maker Revolution celebrates the creation of new devices and the modification of existing ones - the transition from a consumer buying goods to eventually having a major part in their creation. The Maker Revolution places strong emphasis on free (...

Tags: infographic maker movement poster revolution

How to Use DC Regulators/Converters

So, you might have the best project in the world, an amazing idea and design, but no matter how clever your circuitry or how advanced your prototype is, unless you can power your project correctly, it all counts for nothing. Often you will need diffe...

Tags: boost buck converter linear regulator switching zener

Powering Portable Projects: Batteries

Want to make your project portable? We've put together a quick guide to get you up to speed on battery options and help you decide which batteries might be best for your project. Batteries are a whole different game to plug packs and benchtop power s...

Tags: alkaline batteries battery lipo nicad nimh portable power supply

Our recommendation on Breadboard Power Supplies

So, you’re looking for the right way to power your breadboard? You’ve found that your Arduino Uno just doesn’t quite have the juice to power up your circuit. It's likely that the microcontroller can output around 400mA when using th...

Tags: 3.3v 5v breadboard power supply

Product Comments

Start the conversation

Share your review

Customer Reviews

Review by Alex verified purchaser

Rating

100

Works perfectly, used it in a DIY dashcam battery backup system in my car, no issues with it. (Posted on 16/11/2018)
Review by Paul verified purchaser

Rating

100

Simple to wire up and does what it says. (Posted on 26/04/2018)
Review by robert verified purchaser

Rating

100

Excellent service - have bought a number of items off Core Electronics - prompt and responsive to queries about the products themselves. Highly recommended. (Posted on 26/03/2018)

Exact shipping can be calculated on the view cart page (no login required).

We deliver Australia-wide with these options:

$3 for Small Items (3-7 days, not tracked, only available on selected small items)
$6.95 for Standard Post (2-4 days, tracked)
$9.95 for Express Post (Overnight for most of Australia, 2+ days for rural, tracked)
Pickup - Free! Only available to customers who live in the Newcastle region (only after we email you to notify your order is ready)

International Orders - the following rates are for New Zealand and will vary for other countries:

$11.49 for Pack and Track (3+ days, tracked)
$16.50 for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount might increment based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.