Intel® Enpirion® Power Solutions
Interact with Intel® product support specialists on Intel® Enpirion® DC-DC Step-Down Power Converters
Announcements
This forum offers only peer-to-peer support. Thank you!
226 Discussions

EP5358LUA 100OHM resistor between PVIN and AVIN

AlexS
Employee
1,289 Views

hi

According to the datasheet, there is no requirements to put a 100OHM resistor between AVIN and PVIN but it appears in the evaluation board schematic. what is the purpose of this resistor?

is there a recommendation to put a capacitor on AVIN input in case a resistor is placed?

Labels (1)
0 Kudos
1 Reply
Mostafa_Intel_AE
Employee
1,269 Views

Hello @AlexS ,

 

That 100R is used to add a delay to AVIN to improve the power on sequencing and avoid the UVLO if the PVIN is noisy.

I would recommend to add that RC filter for AVIN as <100R between PVIN and AVIN and  4.7uF between AVIN and GND if you expecting the input voltage is noisy.

 

Thanks,

Mostafa

 

0 Kudos
Reply