Raspyfi (raspberry pi) regulators

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To improve cleaness PS for raspberry(raspfi)?
Any
better ideas modify onboard regulators except
building a linear 5v power supply(LT3080/LT1083)?;)



seaward electronic SE8117 3.3v regulator.
raspberry_rev2_ps_pic1 - Copy_nEO_IMG.jpg
se8117 schematic.jpg

*RG2 on raspberry pi rev2.0 schematic
raspberry_rev2_ps_schematic.jpg
Both regulators has an tantalum caps for output (are they bad?)
RG2 3.3v has a 47u (c11)
RG1 1.8v has a 47u (c9)

Schematic for Raspberry Pi Rev.2 pcb
http://www.raspberrypi.org/wp-content/uploads/2012/10/Raspberry-Pi-R2.0-Schematics-Issue2.2_027.pdf
*some early version of raspberry board has a flaw affected, if experience network cutoff streaming music,
shall take a look [Link]


SE8117T33 Datasheet

http://pdf.dzsc.com/SE8/SE8117.pdf


 
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