TLE4275-Q1: stability analysis

Hello O'Mellin,

We will need to build this onto an EVM and do a transient test.
The EVM's are scheduled to arrive next week.
We'll need to order samples of the TLE4275-Q1 to populate on them, which requires 5 days shipping.

I'll place the order and it may take until the end of the month to conduct the tests.

Thanks,

- Stephen

Hello O'Mellin,

I wanted to provide an update.
The hardware and components arrived yesterday afternoon.
Today I will initiate the process of installed the linear regulator onto the EVM, and if possible capture some test data.
This may extend into early next week but I will provide you the results as I have them.

Thanks,

- Stephen

Hello O'Mellin,

We had to order new TE as ours became nonfunctional.  That is the cause for the delay.  The TE arrived yesterday afternoon and I should have a measurement today.

Thank you for your patience.

Thanks,

- Stephen

Hello O'Mellin,

The frequency response analysis indicates 8 degrees of phase margin with this loading.
It is very noisy and almost looks oscillatory. 

I'll need to try the load transient method tomorrow to confirm.
I'll provide those results when I have them.

The datasheet specifies the following for the stability criteria for this device.
Ceramics can be used but they would need a series resistor to meet the ESR.

Thanks,

- Stephen