TPS54620: EN control of TPS54620

Shenhua Zhang

Prodigy 640 points

Part Number: TPS54620

Customer is asking that, for TPS54620, can we pull EN direct to 3.3V to enable IC, or we can only float EN to enable?

over 5 years ago

0 Anthony F over 5 years ago

TI__Mastermind 35165 points

Hi Shenhua,

The EN pin can be pulled direct to 3.3V or any voltage that is within the ratings of the pin. It would be good to include a placeholder pull-down resistor from EN to ground and a resistor from the EN pin to the 3.3V signal in case they are needed. A pull-down resistor can be used to help ensure the output is disabled until the 3.3V signal is active.

I happened to have a similar question earlier this week that you may find useful. Linked below.

https://e2e.ti.com/support/power-management/f/196/t/897266

Anthony

Power management

Power management forum

TPS54620: EN control of TPS54620