TPS542A50: output accuracy for 1.8V & 3.3V application

Ben Kuo

Part Number: TPS542A50

Hi Expert,

Since output voltage of TPS542A50 is setting by VSET pin, could you provide output tolerance (DC accuracy) for 1.8V and 3.3V application?

Thanks,

Ben

0 David_Daniels over 1 year ago

Assuming 0.1% resistors for VSET , For 1.2V and 5.5V, the accuracy is +/- 1.25% and +/-0.55% respectively.

I will see if I can find additional info.

0 Ben Kuo over 1 year ago in reply to David_Daniels

Hi David,

Did you have data without resistors? Customer use 1% resistor typically.

Regards,

Ben

0 David_Daniels over 1 year ago in reply to Ben Kuo

The resistors are needed on the SREF to VSET to adjust the output voltage.

If the resistors are 1.0%. The 1.2V is +/-2.86% and 5.5V is +/- 0.75%

0 Ben Kuo over 1 year ago in reply to David_Daniels

Thanks, but we also need 1.8V rail accuracy. Thanks

+1 David_Daniels over 1 year ago in reply to Ben Kuo

I understand the request, but we do not have data. The 1.8V accuracy is tighter than the 1.2V

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