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LTC3440 - DC797A Vc pin

Question asked by Markze on Aug 9, 2018
Latest reply on Aug 13, 2018 by Anisha



I am currently studying LTC3440 and have some doubts for Vc pin application.


Notice DC797A demoboard circuit Vc pin is connected to another resistor divider R7 and R8.

Might I know what is the application for this divider circuit? I search most similar IC such as LTC3440, LTC3441, LTC3538 etc. However, it does not has any explanation for the circuit above.


It is part of the feedback loop for error Amp, but I don't understand application for another divider circuit in error Amp output.


Appreciate if you can help me to figure out how this compensation circuit work.


Thank you.