What is the difference between the LT8640S & LT8640S-2 ?

Which products are newer?

Thanks

Hy.J

Hi team,

I would like to estimate the tolerance of average output voltage.

I think that only the feedback resistance tolerance and the reference voltage tolerance are relevant, but are there any other parameters that affect it?

Since the ripple voltage…

I have a design with two LT8640S devices.  They are set to generate 12V from a 24V input.  One is used to power devices on another board.  The other powers on-board devices.  The LT8640S for the off-board devices works fine and generates 12V.  The LT8640S…

The datasheet for LT8640/LT8640-1 lists theta_JC(PAD) = 12 C/W.

First, I would like to confirm that this represents the junction-to-board thermal resistance. Typically, JC denotes junction-to-case, however, in this case it calls out the PAD which makes…

Hello, can you confirm that PCB file for LT8640 works? Because I cannot run it with Altium Designer. I need this file for my thesis project. I would be happy if you can help me on it.

Hello

Our customer will use LT8302 fly back and LT8640S.

(24V-> 5.5V by LT8302 and 5.5V-Vf-> 3.3V about 4A by LT8640S.

(Refer to attached slide 1)

He simulated this design by LTspice.

(Result is attached slide 2)

When LT8302 SW current reaches…

Hi,

I've designed a board with the LT8640.

The switcher is not working and the IntVcc pin is stuck at 2V instead of the specced >3V.

The input voltages are ok and the switching terminal is silent and doesn't do anything.

Where could I start…

Hi all,

I'm doing reliability analysis (according to Telcordia SR332 Issue 3 method).

Fit/MTBF values given by Analog here follow another standard and are not comparable to Telcordia values.

I need MTBF/FIT value (according to Telcordia) for this…