I have a very noisy 5V supply, the noise is in very low FQ around 1kHz.
From all the components In my project there is only one I have to provide with 10Hz - 2kHz clean 5V.
But because I need 5V and I only have 5V. I can not just use LDO. So my current idea is to use low noise LDO with boost converter:
- LT1109
- LT1761
simulate this circuit – Schematic created using CircuitLab
I'm looking for integration solution and right now I have found only this one:
I found this one (http://cds.linear.com/docs/en/datasheet/3537fd.pdf) but Rejection Ration of this LDO is disporting + I would not have a way to hand solder it.
Any suggestion ?
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