HMC1121 Vgg

On a small same of devices, I'm seeing VGG vary from device to device  from -0.8V to -0.84V to maintain IDQ at 2200 mA at 25 degC. To deal with this variation, we recommend using an active bias controller circuit such as HMC980. 

On a small same of devices, I'm seeing VGG vary from device to device  from -0.8V to -0.84V to maintain IDQ at 2200 mA at 25 degC. To deal with this variation, we recommend using an active bias controller circuit such as HMC980. 

Hello Enash, We are dealing with VGG variations and analyzing the addition of two bias controllers but I think that perhaps there is a simpler solution... What about an SPI digital potentiometer connected to the LDO regulator? I know it is not a common solution for this problem, but I would like to listen your opinion, thanks!!!