Buck converter breaking down

------Question for TPS54331DR Please Put your question below------

Can I hook this up to a 14.8V battery? Also the prongs keep falling off after soldering them to the wires, how can I prevent that?

Hello @sanat.u.sophia,

One of the best ways to learn how to use an IC is to search or an evaluation board. TI has produced the TPS54331EVM-232 board for the TPS54331DR.

In the eval board datasheet we find this schematic that shows a typical application:

Yes, the TPS54331DR can operate from a 14.8 VDC source.

As for the physical assembly, the 8-SOIC should be mounted on a dedicated PCB or surface mount adapter as shown in this video.

Happy soldering,

APDahlen

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