LM65625-Q1: 24V output

Hi,

I would like to draw you attention that this device is a buck converter. You will not be able to get 24V when the input voltage is 20V. Hope you get my point. Let me know if I am mistaking something.

Thanks,

Pramanik Patel

Yes agree, my worst case is 20V, nominal is around 26V
Do you recommend any converter (maybe a buck boost) in this range and can output 24V ? 

Thank you 

Hi,

Thanks for the reply. Then you mean to say that input voltage may drop to 20V only for a very short period of time, right?

Thanks,

Pramanik Patel

Not really, during worst case operations I will see 20V and the buck-boost should still output 24V rail for bias power. I have found a Vicor module that can do this. Does TI have anything similar that can do this ? 
Vicor input range 9V-60V and outputs 24V

Thank you 

Hi,

It is for sure that only buck may not work. I will have to look into for a device that support such kind of operation.

Thanks,

Pramanik Patel

Hi Pramanik, 

Please let me know if you have any device with the capabilities. So far I found only a Vicor module that can do that. 
Vin range 20 to 60V and out 24V and isolated buck-boost converter. 

Thank you 

Hi,

Please clarify the following:

1) Let say if Vin < 24V then the device must work as boost

2) Let say Vin > 24V then the device must work as buck

So we need a device capable of changing it's topology according to Vin?

Thanks,

Pramanik

Yes, it should be a buck boost converter. 
For an example PRC60-48-S24 does that for you. 
Do you have a similar part ? 

Thank you