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TPS22976: VBIAS lower than VIN voltage

Part Number: TPS22976

Hi Team,

We always recommend customer to use VBIAS>=VIN in system.

1. If customer use VIN = 5V and VBIAS = 3.3V, will it have any concern? 

2. If yes, could you please describe more detail for reason? 

Best regards,


  • Hello Hardy,

    We do not recommend using VBIAS lower than VIN. VBIAS must be greater than or equal to VIN. If there's an issue having a separate supply for VBIAS then tie VBIAS to VIN. VBIAS is responsible for charging the gate, and other functionalities of the device. 


    Kalin Burnside