TPS54625: Can TPS54625 be connected in parallel for higher current output

kerb huang

Intellectual 690 points

Part Number: TPS54625

Hello,

In the application, need current of 18A, Can we connect multiple tps54625 in parallel?

Thank you,

K H

over 7 years ago

0 Anthony Lang over 7 years ago

TI__Expert 4875 points

Hi Kerb,

I think you could not use in parallel. The reason is that this device is DCAP2 control and there is no comp pin for you to tie them together like current mode. So you could not control current sharing on different phase. Also DCAP2 could not sync up with external clock since it is constant on time control, no oscillation internal. Thanks!

0 Vental Mao over 7 years ago

TI__Expert 5745 points

You can't parallel this part. what you can parallel is the current mode with the comp pin.

Power management

Power management forum

TPS54625: Can TPS54625 be connected in parallel for higher current output