Tool/software:
Hi all,
I recently used the TI WEBENCH Power Designer for a reference design using the TPS61023.
My requirements were:
5.5VDC out @ 1A for a 3.2-4.7VDC input.
Using the suggested design and reference material for suggested component layout (sect 10 of the TPS61023 datasheet) I produced a PCB:
On testing the PCB, I'm seeing a slightly higher than expected output voltage of ~5.7VDC and about 60mVpk ripple @ 58kHz measured at the +5.5V node for a ~1A load.
This ripple frequency doesn't make sense to me, I would've thought it would be ~1MHz. Is it possible the device is operating in the power saver mode despite having a load of ~1A? The datasheet doesn't seem to provide a switching frequency for the power save mode but I would'nt have assumed it would be this low.
Appreciate any thoughts.
