About MHolt.16

MHolt.16 · 2019-08-28

I am using the MC34063ECD-TR to take 5V and make -12V. I'm using the schematic as recommended in the datasheet for this application (with the exception of using a 100uH inductor instead of a 90uH inductor). It is working nicely electrically - I get...

MHolt.16 · 2019-09-13

Perhaps I could flip the diode over and get it closer to pin 4. What do you think about this? Could it solve the problem?

MHolt.16 · 2019-09-13

And I believe my pins 2/4/5 have very short traces, but maybe D4 could be closer to pin 4??? What do you think?Here is how it is laid out:

MHolt.16 · 2019-09-13

First let me say thank you for your suggestions! I appreciate all help I can get.My second layer (this is a 6 layer board) is a solid ground underneath of this circuit. The slice in this screen shot is because I physically separate the amplifier and...

MHolt.16 · 2019-09-12

Is anybody at ST able to help me with this?

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Layout Recommendation for inverting DC-DC Converter MC34063

Re: Layout Recommendation for inverting DC-DC Converter MC34063

Re: Layout Recommendation for inverting DC-DC Converter MC34063

Re: Layout Recommendation for inverting DC-DC Converter MC34063

Re: Layout Recommendation for inverting DC-DC Converter MC34063