I am taking a VLSI class that is doing a tapeout o...
# powerw
Weston Braun
02/16/2021, 7:42 PMI am taking a VLSI class that is doing a tapeout on sky130, so I think I will be actually working on a buck converter IC with a defined timeline now https://docs.google.com/document/d/1GMk5dvyJdYRGYMi88zNCIQ8mtFNiB_Kf4unADBAt7LQ/edit?usp=sharing
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Michael Heidinger
03/10/2021, 6:33 PMI will have a look at your document now
Michael Heidinger
03/10/2021, 6:41 PMFeedback @Weston Braun: i would go for 6v input voltage range to be able to use usb power directly. (5v usb plus tollerance). I would go for a lower power supply current, max. 100mA. Its a good idea to place the compensation network outside of the chip. I would integrate the compensation network though onchip and make it selectable by a mux. The resistor and the capacitor seperately.
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Weston Braun
03/10/2021, 6:51 PMThanks for the advice! 6V is a bit tough because the gate rating on all the switches only goes up to 5.5V.
Weston Braun
03/10/2021, 6:52 PMRight now I am designing everything with the g5v0d10v5 fets though.
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Michael Heidinger
03/10/2021, 9:45 PM@Weston Braun 5.5v input voltage should be okay too. I would integrate a strong tvs to the input, so in case there comes an surge, the whole thing does not blow up.