This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS7A57: output problem

Part Number: TPS7A57

Tool/software:

hi Expert,

We now use TPS7A57 has a question, that is, when we set the external resistance value to about 17.12K, the default output voltage at this time is about 0.856V. When we want to use the external DAC to adjust the output of the TPS7A57, if the current is poured into the TPS7A757, the output current should be increased, because the current flowing through the external resistance increases, so the output will increase accordingly. However, when we pump current to the TPS7A57 to reduce the external voltage output, can we turn down the output voltage of the TPS7A57? We expect to lower the output voltage to 0.6V. From your internal block diagram of the power supply, since the output voltage is generated by multiplying an internal current source with an external resistance, we are concerned that the output voltage will not decrease as we expect when we draw current to the outside.