TPS56121: operate with 3.3Vin?

Di Wang

Expert 1740 points

Part Number: TPS56121

Hi,

If Vdd is biased by an external 5V or 12V, can TPS56121 operate with 3.3Vin? If it can, could you promote a substitute?

Thanks.

over 6 years ago

0 Newey Yakamna over 6 years ago

TI__Intellectual 1520 points

Hi Di,
Since the VDD and VIN are separated, this should be fine. Keep in mind that your output conversion should be lower than your input (3.3V). What is your output voltage and frequency setting?
Thank you.
Amnat

Power management

Power management forum

TPS56121: operate with 3.3Vin?