TPS43060: Internal VCC loading

Part Number: TPS43060

Hi Support Team,

We are using TPS43060 boost  to convert 10.8V to 24V, 2A in our design. We observed that on couple of boards the impedance of LDRV pin wrt gnd falls to 21Ohms and this loads the internal VCC of the IC. We revisited the design but could not find any component connected externally in the circuit that might create a problem. 

Circuit Snap:

https://e2e.ti.com/resized-image/__size/640x480/__key/communityserver-components-multipleuploadfilemanager/0b7d3db3_2D00_6e5e_2D00_4dbf_2D00_808a_2D00_3345e653e87e-439509-complete/SNap.png

VCC Waveform:

 

We referred to the discussion thread below which deals with the similar problem but this discussion has been taken offline:


e2e.ti.com/.../tps43060-output-of-vcc-pin

We referred to the discussion thread below which deals with the similar problem but this discussion has been taken offline:

https://e2e.ti.com/support/power-management/f/power-management-forum/862431/tps43060-output-of-vcc-pin