TXS02326A: Analog switch device for dual SIM card

JH Shin

Mastermind 8905 points

Part Number: TXS02326A
Other Parts Discussed in Thread: TMUX1574, TXS4558

Tool/software:

Hello,

My customer is looking for an analog switch IC with the following features;

Please recommend a suitable product among TI products.

Thank you.

3 months ago

0 Clemens Ladisch 3 months ago

Guru 282680 points

That image shows a plain four-channel, 2:1 switch. The TMUX1574 would be suitable.

TI has specialized SIM switches with additional features like voltage translation, edge accelerators, and LDOs. I do not know if you want these features.

0 Kai Lai 1 month ago in reply to Clemens Ladisch

TI__Expert 7376 points

Hi Clemens,

I do have same request from my customer side, but when I check TMUX1574. I'm wondering does our TMUX1574 can handle the power switch channel in ON FSA2567UMX ? I mean the 1VSIM and 2VSIM channel.

Seems like they provide lower RON on the power Ch, and that channel can handle 150mA loading.

https://www.mouser.com/datasheet/2/308/1/FSA2567_D-2313887.pdf

I checked your link, I think maybe we do not have similar analog SW can support like that but we have TXS4558 can support this kind of power + signal switch need ?

Thanks!

BR, Kai

0 Clemens Ladisch 1 month ago in reply to Kai Lai

Guru 282680 points

The TMUX1574 has 2 Ω, which should be enough for < 50 mA.

The FSA2567UMX assumes that the SIM power is already regulated to the desired voltage by some other component; the TXS4558 generates the power with LDOs. You can use the TXS4558 if you change the circuit appropriately.

0 Kai Lai 1 month ago in reply to Clemens Ladisch

TI__Expert 7376 points

Hi Clemens,

Thanks for the reply, but I see our TMUX1574 can only support up to 25mA per channel, so which mean if the SIM card load below 25mA, then we think the TMUX1574 can support the same like FSA2567UMX ? Thanks!