TPS65131: Inductor Spec Confirmation

GARETH OU

Guru 11445 points

Part Number: TPS65131

Tool/software:

May I ask if there is any current (Imax) limit for the L8/L9 4.7uH parts in this +/- 12V circuit diagram?

Because I need to replace the TDK 4.7uH with Zenithtek 4.7uH (common material) parts, thank you.

Currently using TDK 4.7uH spec

Replace with the following alternatives.

0 Patrick Yao 3 months ago

Hi Gareth,

It depends on the loading of the +/-12V. What are the load current of two output rails?

Patrick

0 GARETH OU 3 months ago in reply to Patrick Yao

Guru 11445 points

Hi Patrick

The output rails are the input voltage(OPA1678IDRGR, spec as attachment) as the circuits below; it is used in Headset AFE.

0 Patrick Yao 3 months ago in reply to GARETH OU

Hi Gareth,

I didn't see any attachment. But if the loading of the OPA is small, it is ok to use inductor with lower current ratings.

Patrick

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