TPS54561: TPS54561 schottkey 5.5A 110 V

Neelam singh

Part Number: TPS54561

Hi,

We are using TPS54561 in our design in . We use Webench designing .IN this it is recommenced schottkey diode at Boot pins. what is function of this diode.If we do not use it will it work.

Regards

Neelam

over 8 years ago

0 Yuchang Zhang over 8 years ago

TI__Mastermind 18510 points

Hi,
Do you mean the schottky Diode between SW and GND?
TPS54561 is asynchronous BUCK, no low-side mosfet, so need the diode between SW to GND for keeping current continous. it is a must.

Regards,
Yuchang

0 JohnTucker over 8 years ago in reply to Yuchang Zhang

TI__Guru**** 191445 points

Can you share your Webench design?

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TPS54561: TPS54561 schottkey 5.5A 110 V