LDO regulator for CS8412/TDA1543 dac, opinions? - diyAudio
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Old 2nd March 2004, 01:43 PM   #1
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Default LDO regulator for CS8412/TDA1543 dac, opinions?

I have been looking for suitable LDO regulators for this DAC project,as it will be battery powered for portable use.

I would value some input regarding this device:


http://www.national.com/pf/LP/LP2986...cation%20Notes

Not having much experience with regulator specs[or electronics in general ] the various specs do not mean a whole lot to me.

Cheers


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Old 3rd March 2004, 07:48 AM   #2
rbroer is offline rbroer  Netherlands
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I've used the REG101-5 for the TDA1543, Tent XO and logic chips.
Very low noise, small (SOT23-5), low drop.
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Old 4th March 2004, 01:01 PM   #3
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Hi Rudolf
Thanks for the reply
They look like great little [VERY little] devices, the lack of cap
sensitivity is also very appealing.

I could not locate the 101s in the uk but found 113s to have pretty good spec also.
I can easily obtain these.




Cheers


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Old 4th March 2004, 01:22 PM   #4
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Quote:
Originally posted by rbroer
I've used the REG101-5 for the TDA1543, Tent XO and logic chips.
Very low noise, small (SOT23-5), low drop.
Even Burr Brown specifies noise in the time domain without specifying the BW

yuck......

Rudolf, did you measure the noise ?

Ciao
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Old 5th March 2004, 06:57 AM   #5
rbroer is offline rbroer  Netherlands
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Default TI REG101-5

Quote:
Originally posted by Guido Tent


Even Burr Brown specifies noise in the time domain without specifying the BW

yuck......

Rudolf, did you measure the noise ?

Ciao

I didn't Guido. Limited in tools.
Do you want to measure it Guido ?
Got a board using this regulator and a socket for your XO.
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Old 5th March 2004, 08:02 AM   #6
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Default Re: TI REG101-5

Quote:
Originally posted by rbroer



I didn't Guido. Limited in tools.
Do you want to measure it Guido ?
Got a board using this regulator and a socket for your XO.

Hi Rudolf,

I use a preamp (AD 797) and my HP3580A spectrum analyser. If you prefer to send the board with the reg 101, I am willing (and curious too) to measure it.

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