Can MPM3834C generate negative voltage?

[bastiaan]

Can this module also be used to generate a negative voltage (of -0.9V) by connecting OUT and OUT_S to GND, and PGND and AGND to -0.9V?

[Tyler.FAE]

Hi,

The steps to obtaining a negative output voltage for a step-down converter are as follows:

1. Connect the buck positive output to the system ground.

2. Connect the buck ground node as the negative output voltage node.

3. Keep the positive input the same.

4. The FB input will always be compared to GND.

Best,

Tyler