We are interested in using the TPS73501 (adjustable voltage version) in a new design. However, a careful reading of the recently updated spec sheet reveals a slightly confusing section with statements that can be viewed as contradictory:
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We are interested in using the TPS73501 (adjustable voltage version) in a new design. However, a careful reading of the recently updated spec sheet reveals a slightly confusing section with statements that can be viewed as contradictory:
Hi Ryan,
The wording is not correct and we need to revise it. The fixed voltage version will have lower noise due to the noise reduction cap that can be connected to the NR pin.
By selecting the feedback resistors for divider current of 2 uA, the contribution to noise from feedback resistors will be the same as the fixed version which has internal feedback resistors.
With Cout ESR of 0.2 ohms, you can optimize the low noise performance as much as possible with the adjustable version. The maximum capacitor value of 10 nF statement is also incorrect.
Thanks for your fast response, Eric:
Do you have noise performance data and PSRR available for the adjustable output part, then?