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Part Number: TPS7A57


We are using TPS7A5701RTER for 3.3V to 1.8V, 1.5V to 1.1V, 1.5V to 0.9V, 3.3V to 2.5V, 5V to 1.8V conversion.

For BIAS pin, if input voltage is less than 1.1V, bias voltage needs to provided. If not we can leave the BIAS pin open as it is mentioned in datasheet.

In the above design, We are providing the input voltage of 1.5V to get 0.9V as output. We are also providing BIAS supply as optional with DNP. For that BIAS voltage do we need to provide higher than input voltage or can we provide same as input voltage. Pls provide the voltage range for BIAS pin.


S Sathya shree

  • Hi S Sathya shree,

    Thank you for your question. The Vbias range is from 3-V to 11-V. You have a 3.3 V connection so you should be good.  

    Please let me know if you have any further questions. 

    Thank you,

    Josh Nachassi