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generating VIN for LTC4269-2

Question asked by A.R.f. on Jun 12, 2018
Latest reply on Jun 20, 2018 by A.R.f.

Hi,

In the schematics of the "typical application" of LTC4269-2 the chip's supply voltage VIN rail is charged through a 33k resistor (the only source when not switching). Is that done just because that's the simplest and lowest cost solution, or are there any reasons to avoid using a kind of regulator for supplying VIN (also during switching)?

 

33k

 

Best regards,
Adam

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