[SI-LIST] Re: Mixed digital/RF board with switching power supplies

  • From: "Mikhail Matusov" <matusov@xxxxxxxxxxxx>
  • To: "Christian D'Souza" <christian.dsouza@xxxxxxxxx>
  • Date: Fri, 6 Jul 2007 14:28:40 -0400

Hi Christian,

> 1. What is the average magnitude of the current through the PWMs?  What 
> different voltages?

The currents are in the range of 100 mA to 1A. The input voltage to the 
switchers is 5V and the output voltages are between 1.1V and 3.8V.

2. What kind of inductor does the switching circuits use?

It's Coilcraft magnetically shielded MOS6020 series.

3. Proximity to the RF circuitry?

Close. I am going to set up a web page with some pictures and post a link in 
a short while...


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