LM25119: Consultation

Basel Tahboub

Intellectual 285 points

Part Number: LM25119
Other Parts Discussed in Thread: LM5143-Q1

Hi TI

We are designing a power supply for motor drivers, the system is requiring up to 24V/35A.

We have selected LM25119 to regulate input voltage (26-30V) to 24V.

Is it possible to achieve these requirements by a single channel or we have to use the interleaved single output?
This part isn't supported by WEBENCH is there any other method to get the calculations needed.
Is there any evaluation that has the same (or close) to our requirements?
Can you review the schematic design after I finish it?

Thanks

over 3 years ago

0 Matt Schurmann over 3 years ago

TI__Genius 11095 points

Hello, this is a holiday weekend in the US. We will reply by EOD Tuesday US time.

0 Matt Schurmann over 3 years ago in reply to Matt Schurmann

TI__Genius 11095 points

Hello,

The LM25119 has a minimum off-time of up to 430ns. LM25119 is not a good candidate for such high duty cycle applications (24/26 ~= 92% duty cycle). I have re-assigned the thread to our Wide-Vin product line for a recommendation.