TPS53689T: TPS53689T

Hi Yi,

Can you please provide details for your build date and volume? 

In general a reference schematic has two parts 

1. end application specific/ CPU specific selection of PDN including power stages and controller

2. schematic related to the devices -- eg. bypass caps for VCC/ VDRV 

Both lists above are quite long. Therefore I am interested in knowing the platform also.

Regards

Vasav  

1. The application is device test board, so we have no specific CPU. Instead, we hoping to build a general device power unit. 

2. This approach is now in the internal study for future product. Currently, we use off-the-shelf DC modules. Volume can be estimated 1K/year. 

3. We are target to provide core power for device. So voltage range is better to set from 0.7V~3.3V. However, core power normally at around 1V.

Thanks Yi,

I will get back to you shortly. 

Hi Yi,

I believe that you have multi phase experience. 

I will advice you to use TPS537G2 controller along with our new power stage CSD965200 (16 units). 

These parts are available for customer sampling. However, these are yet to be RTMed. 

Hope it answer your questions

Regards

Vasav

Hi Vasav,

Thanks for the feedback.

Unfortunately, we don't have the experience to use multiphase method. 

However, I found the TPS53622 and trace to a Multiphase Buck Design from Start to Finish, Part 1 (Rev. B) application note. We'll start to study it. 

Thanks.

Flint.

Let me go through this document.

Will get back to you soon