TPS65130:Please recommend an OP-AMP(OPA827) power supply.

Hi Customer,

What is your input voltage range?

And usually the OPA power supply is a fixed DC voltage, so may I know if you can use a voltage within +5V ~ +15V and -5V ~ -15V?

BR

Patrick

Hello.

The alarm did not come, so the reply was late.
The input voltage will be -+5~-+15V.
The problem is the design of medical devices.
So, I would like to recommend a part with low power noise.

Thank you.

Hi,

For TPS65130, the positive output voltage should be higher than VIN because of the Boost topology.

BR

Patrick

Hi.

I understand what you said.
I will design it as follows.

VIN 5.0V, Vpos +10V, Vneg -10V

OR

VIN 3.3V, Vpos +5V, Vneg -5V

I have additional questions.
For low noise (0.1~10Hz), would the TPS6513x version be the best?
For the low noise part, is there a part that is specialized for 0.1Hz~10Hz frequency?

That's it.
Thank you.

Hi,

This part is not specialized for 0.1Hz~10Hz, but you can refer to datasheet Figure 8-35 to Figure 8-44 for the ripple performance.

BR

Patrick