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TLV710: Need clarification

Ramkumar R
Prodigy 30 points
Part Number: TLV710

Tool/software:

I saw the TLV7103318DSET part in the PROC141E4_RP schematic.in that I have on doubt.

This IC has two enable pin's and the EN2 is high so OUT2 comes by default (VLDO_CSI_1V8) and the 1.8V is going to all ICs connected with it.

As per my understanding, if we need 3.3V, I should toggle the EN1 Pin input to high using the DIP switch and remove the R1241 resistor. Could you confirm whether this is correct?

Note:

We need the 3.3V operation for I2C and GPIO's so that I ask above clarification. 

  • 0
    TI__Intellectual 2810 points

    Hi Ramkumar,

    Device: TLV7103318DSET

    From the schematic, EN2 is always connected to 5.0V supply, and thus OUT2 will be 1.8V when supply is provided.

    When you toggle the EN1>= 0.9V, the OUT1 will rise to 3.3V.

    From schematic, you will need to remove either R1240 or R1241 (to prevent two different voltages being tied together), and you will need to use an output cap separately for each output (recommendation given in page 18 of the datasheet).

    Regards,

    Bobby