33-100V in and 24V out 15A load, Buck with Single Output Two-Phase interleaved PWM chip controller selection

Dmitry123

Other Parts Discussed in Thread: TPS40140, LM5116

Hi,

I need help choosing a controller for the synchronous buck power supply.
As you can see in the title so it must have wide input voltage range, 33-100VDC.
Out will be 24V and 10 to 15 A load.
There shall be two phase that runs at 180 degrees. Currents sharing is important.
I looked at the TPS40140 which might make it but not shure.

Grateful for any suggestions.

over 11 years ago

0 JohnTucker over 11 years ago

TI__Guru**** 191445 points

TPS40140 is only rated for 15 V input. Webench did not return any solutions for your requirements. There may be other options though.

0 Dmitry123 over 11 years ago in reply to JohnTucker

Prodigy 60 points

I can make 12V feed voltage from another PSU that will be in same system.

0 JohnTucker over 11 years ago in reply to Dmitry123

TI__Guru**** 191445 points

What is your schedule and production quantity?

0 Dmitry123 over 11 years ago in reply to JohnTucker

Prodigy 60 points

1k -10k year

Production at the end of next year.

0 Dmitry123 over 11 years ago in reply to Dmitry123

Prodigy 60 points

I can use two LM5116 with clock synck 180 degrees pulsed, but in this case i need to build active current sharing functionslity. It will no be cost effective solution then...

Power management

Power management forum

33-100V in and 24V out 15A load, Buck with Single Output Two-Phase interleaved PWM chip controller selection