TPSM63608: RFB

same for SYNC/MODE pin pull up recommends 100Kohms

Hi Vidhya,

For RFBT, it would be ok to use a higher resistance as long as it is less than 1 MOhm. Still I would recommend to keep it in the low hundreds of kOhm range as higher resistance makes it more susceptible to noise.

For SYNC/MODE it is recommended to keep it close to 100 kOhm itself.

Regards,

Niranjan

HI Niranjan,

So can use 100K Ohms for RFBT and RFBB values used similar to Table 8-1

but to generate 1.05V, RFBB has to be 2Mohms/Open.

Thanks,

Vidhya

Hi Vidhya,

For the 1.05V case I would recommend to keep the total series resistance below 1M. So something in the range RFBT = 20k-40k, RFBB = 400k-800k would work. 

However, if you do not need 1.05V exact you can leave RFBB open to get VOUT = 1V.

Regards,

Niranjan

let me check for 1.05V