LMR36006-Q1: why the output voltage always has a increase spike when UVP test

Sway Chen

Part Number: LMR36006-Q1

Hi Ti experts,

As the title, when I use the switch to short upper resistor (Rfbt), as below:

The phenomenon is output voltage increasing first and then going down. I am not sure if it is normal?

Thanks a lot

+1 Andy Chen over 2 years ago

Hi Sway,

Did you use mechanical switch to short the RFBT? the switch jitter may cause unstable VFB and ringing on Vout. you can try it with transistor switch.

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