They are a fair bit more expensive, and can be RF-noisy, but as long as that's not an issue or can be designed around, they may be an appropriate replacement as they are vastly more efficient, meaning they waste a lot less energy as heat. Thanks for the info! I'll see if I can get a series resistor to work and I'll order a couple switching regulators for the future and whatnot.
You said that a switching regulator causes a little RF noise, do you think it would be enough to cause an interference at MHz? Also I am worried that the ATmega won't like the 5v directly from the power supply would powering it directly like that be fine? Once again, thanks a bunch for the help! Sorry, didn't catch the reply notification on this one. I'm afraid I don't have nearly enough experience to know whether it would interfere with equipment on MHz - that would largely depend on the switching frequency, how sensitive the equipment is on harmonics, and of course the actual design of the device incorporating the switching regulator.
I don't think the Mega is supposed to get warm, but it should be fine with the 5V; double-check the datasheet for the acceptable input voltage range and what that might affect, though :. This may be a little out there, but can run these in parallel to up the amperage? If put 10 of these with the proper decoupling caps in parallel, could I theoretically run something at 10 amps?
The quick answer is that you can try, however slight manufacturing differences will typically mean that one device will try to handle most of the load, shut down, with the same thing happening to the rest in sequence.
Google "parallel voltage regulators" for more information. I'm trying to get a stable 5v output from a mA 12V wall plug that also runs a small amp for a portable stereo I'm building eventually I will upgrade to a 2A supply what would you reccomend. Using between uF is common. As for the heat, you may have to use a heatsink being that it is using a 12V source. What kind of current draw will your ATtiny setup use?
So can I use this if I have an 12v analog signal? Which caps should I use with this regulator? If I want a realy stable supply? In the data scheet they use a 0. I'm speculating here, but I think the best capacitance depends on how much current you need to supply. If your capacitance is too low compared to your current, then your supply wont be stable, but if the capacitance is too high compared to your current, then you wont be able to charge the caps up to the right voltage.
I use a standard circuit which has the , a 10uF on Input and 1uF on output. Most of these different capacitor setups will work most of the time. Most of these things can only dissipate so much A maxes out at 2. Tried supplying it with 4 AA batteries 6v but it will not output 5v then.
So if you plan power your project with batteries using this then go for 9v. The minimum supply voltage is 7 volts, and the maximum is 25 volts. It says so in the datasheet. From experience I know that the performance will be eractic when supplying it lower than 7 volts. Always handy to have a stable regulated supply for sensitive electronics. This is the best way to go! This chip design dating from the s is a quick and handy 5 volt regulator for just abut anything that needs a constant voltage supply up to about 1.
A heat sink is a good idea above about ma. It's great to find these are still sold! Need Help? Mountain Time: Shopping Cart 0 items. Product Menu. Today's Deals Forum Desktop Site. All Categories. Development Single Board Comp. Quantity discounts available. Favorited Favorite 44 Wish List. In stock items in stock.
Description Features Documents This is the basic L voltage regulator, a three-terminal positive regulator with a 5V fixed output voltage. Output Voltage: 5V Output Current: 1. Datasheet Fixed Power Tutorial. Building a pedal around the Teensy 3. Changing the effect in the pedal is as easy as uploading a new sketch! Favorited Favorite This tutorial will show you how to build a magnetic levitation circuit using common parts.
The essential parts for beginning or even experienced hobbyists that gives you all of the basic through-hole components you will need to get started playing with embedded projects. We'll identify a few parts in the kit and provide a few basic circuits to get started! Favorited Favorite 7. Build a Boss Alarm that alerts you of anyone walking into your office and automatically changes your computer screen. Hackbot in the Morning. Core Skill: Soldering This skill defines how difficult the soldering is on a particular product.
Core Skill: Electrical Prototyping If it requires power, you need to know how much, what all the pins do, and how to hook it up. Comments 47 Reviews 3 3 Comments Looking for answers to technical questions? Log in or register to post comments. Log in to post comments. That is not true. This works with a brand new 9V battery.
Doesn't even get that hot. That's almost as efficient as a transformer! Hmmm, I thought differently before and I don't know why Thanks for the clarification! And as a lame pun. I have been forced to take a bite of humble pi. And a datasheet. Customer Reviews 5 out of 5 Based on 3 ratings:. Currently viewing all customer reviews. I need 5v and ma output.
Should I get another capacitor with different capcitance, if so what? Introduction: 5v Regulator. By sooraj Follow. More by the author:. Did you make this project? Share it with us! I Made It! Catimann 1 year ago on Step 3.
Reply Upvote. CalistoH1 1 year ago. MichaelD7 3 years ago. Are ceramic capacitors able to be used for this, or do you NEED to use electrolytic? VishnuM29 MichaelD7 Reply 2 years ago. AnandA18 5 years ago. Adityan A adityan13 gmail. KasunJ AnandA18 Reply 4 years ago. AngelM 5 years ago.
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