The Aussie Pinball Arcade

Aussie Pinball Forums => General Discussion => General Pinball Discussion => Topic started by: cwispy on February 18, 2022, 05:05:28 PM

Title: LM323K Reproduction
Post by: cwispy on February 18, 2022, 05:05:28 PM

I have been working on making a replacement for the now obsolete LM323K, 5 volt 3 amp regulator and as I am in the final stages of testing, I thought others here would be interested in what I am doing. I will be selling these, but pricing is not yet determined.


The main specifications of my replacement board is.


Input: 8 - 32 volts
Output: 5 volts (min 4.94, typ 5, max 5.06)
Current: 4.25 A continuous
Under Voltage Protection
Over Voltage Protection
Over Current Protection
Continuous short-circuit protection
Thermal-Shutdown Protection
High efficiency, up to 94%


Measured output ripple of 15mV to 30mV under load of between 1 amp and 4.25 amps.

Title: Re: LM323K Reproduction
Post by: ddstoys on February 19, 2022, 11:24:37 PM

Nice be good to see these when they are done


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Title: Re: LM323K Reproduction
Post by: Strangeways on February 22, 2022, 01:30:43 PM

Awesome !

Title: Re: LM323K Reproduction
Post by: cwispy on April 03, 2022, 02:38:58 AM

Sorry for not updating you all, but I have now started making these and I am selling them on ebay (https://www.ebay.com.au/itm/185352519108).