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Author Topic: Power supply ICs for CPLD board designs  (Read 1114 times)

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Offline garvind25Topic starter

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Power supply ICs for CPLD board designs
« on: September 04, 2017, 08:16:44 am »
Hi there,
 
  I am looking for simple power supply ICs for a CPLD board design. Can anyone suggest ICs for 1.8v and 3.3v supply generation? I will be using a 5v adapter for supply generation.

Thanks and Regards,
Arvind Gupta
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Offline daqq

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Re: Power supply ICs for CPLD board designs
« Reply #1 on: September 04, 2017, 08:37:55 am »
Depends on the target current. If it's just one CPLD, you'll probably not be drawing a lot of power, I'd even go with two cheap LDOs, stable with ceramic caps. Or you can go with dual LDO (two LDOs in one package), such as:

http://www.linear.com/product/LT3023
http://www.linear.com/product/LT3029
http://ams.com/eng/Products/Power-Management/LDOs/AS1374

Or, if you don't mind extra board space and need more efficiency, you can go for a dual switched DC DC converter. I've used the LT3509 and it worked well.
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Offline marshallh

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Re: Power supply ICs for CPLD board designs
« Reply #2 on: September 05, 2017, 09:51:40 pm »
LD1117 series are cheap and plentiful
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