[FAQ] TPS922051: How to design the CSP and CSN pin components for TPS922051 / 0

Please follow the below graphical illustration to design the CSP and CSN components. There are two points you should pay attention to - 

• The 100Ω resistor on the CSN line: It is necessary. The package of it should be no smaller than 0603. The power rating of it should be no smaller than 0.1W.
• The 1nF capacitor between the CSP and CSN pins: It is optional and is for noise filtering purpose. Place it close to the CSP and CSN pins on the PCB.