TPS65131: Use negative output only

Danilo A.

Part Number: TPS65131

Hi Team,

We have a customer who wants to know if it is possible to produce negative voltage (-3.3V) from TPS65131 but he will disable the +3.3V. His input to the TPS65131 is 3.3V from a 24V to 3.3V regulator.

Regards,

Danilo

over 3 years ago

0 Liaqat Khan over 3 years ago

TI__Mastermind 18550 points

Hi Danilo,

Yes, TPS65131 can be used to generate -3.3V from 3.3V. If customer only wants a negative suppy voltage, they can disable boost converter by tying ENP pin to GND.

Kind Regards,

Liaqat

0 Danilo A. over 3 years ago in reply to Liaqat Khan

TI__Mastermind 24705 points

Hi Liaqat,

Thank you for this information. This confirmed that the positive and negative supplies can independently operate by controlling the ENP and ENN pins.

Regards,

Danilo

Power management

Power management forum

TPS65131: Use negative output only