MP4559 maximum peak current

[arno]

The MP4559 provides 1.5A output current.
Datasheet Rev 1.01: The Ilim is 1.9A typ (duty cycle <60%). There is no graph of the Ilim.

We have an avarage current of 400mA and peak current of 1.9A for 5 ms duty cycle 12%

In the DCDC Designer Online the “High Current of Transient” is limited by 1.5A, so we cannot simulate/verify this.

Can you confirm if our 1.9A peak current is possible with the MP4559?

[MPSNow_Saurabh]

Hi @arno,

I believe it should be able to handle the 1.9A current as far as the Duty cycle <60%.

Thank you.
Saurabh