LM5137F: Need details on Enable

H Jayaraj

Part Number: LM5137F

We are planning to use LM5137F in 4 phase. In this case, Is it mandatory to route enable to all the 4 pins or Is it okay to provide enable to EN1 of first IC?.

3 months ago

0 Onkar Bhakare 3 months ago

TI__Mastermind 27372 points

No,it is mandatory to provide EN signal to all channels

0 Timothy Hegarty 3 months ago in reply to Onkar Bhakare

TI__Guru* 87507 points

Just to add a bit more detail here. Pulling EN low on the primary phase does disable all phases by pulling COMP low, but the secondary phases would just be in standby then, not true shudown.

Regards,

Tim

0 H Jayaraj 3 months ago in reply to Timothy Hegarty

Intellectual 720 points

Hi,

Thank you so much for the very useful input.

0 Timothy Hegarty 3 months ago in reply to H Jayaraj

TI__Guru* 87507 points

Thanks for the question.

Power management

Power management forum

LM5137F: Need details on Enable