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TMUX1248: Analog switch recommendation

JH Shin
Mastermind 8325 points
Part Number: TMUX1248
Other Parts Discussed in Thread: LMS4684, TPS2116, TPS22976

Hello,

The customer is looking for an analog switch that meets the following requirements.

Could you please recommend a suitable device?

  - Switch type : SPDT, DPDT

  - Supply voltage : +5V

  - Control voltage : +3.3V

  - Continuous current : < 500mA

  - Turn on/off time : less than 2uS

Thank you.

JH

  • 0
    Guru 272490 points

    Analog switches are designed for signals, not for large loads. Even a low-resistance switch like the LMS4684 allows only 400 mA, and even then the voltage drop of 0.18 V might be too high.

    There are power muxes like the TPS2116 that automatically switch between two supplies. For manual selection, there are load switches like the TPS22976.