LM5113 Maximum Frequency

Miles Cernauskas

Other Parts Discussed in Thread: LM5113

Hello,

Can you please advise the maximum frequency the LM5113 can handle? All I was able to find in the data sheet is that “the LM5113 can operate up to several MHz.”

Thanks,

Miles

over 11 years ago

0 Kening Gao over 11 years ago

TI__Expert 5900 points

Hello Miles，

I would suggest to use it below 1M Hz.

As in Firgure 6, Figure 7, Figure 18 in the spec shows, the current and power dissipation would increase according with the frequency.

We did not test higher frequency.

The real frequency may below 1M hz a lot in real board for the concern of power dissipation and propagation delays.

Regards

0 LeonardEllis over 10 years ago in reply to Kening Gao

TI__Guru 71526 points

Do we have a "faster" version of the LM5113 to be released soon? As you stated, there are higher losses at higher frequencies, and with faster GaN FETs available, when will we have correspondingly faster drivers available?

~Leonard

0 Kening Gao over 10 years ago in reply to LeonardEllis

TI__Expert 5900 points

Hi Leonard,

I think you may contact Grant Smith for the information. He is the BD of Gan thrust.

Kening

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LM5113 Maximum Frequency