Other Parts Discussed in Thread: LM2678 Hi,
I checked the output voltage of the LM2678 (no load connected) and it was 7.9V, when a load was added it lowered the Ouput voltage to 1.6V and the current output was also too weak, approx. 0.3A. Any suggestions…
Other Parts Discussed in Thread: LM2678 Hello Team,
I have a customer who is interested in using the LM2678 for their upcoming designs. They are using the webench simulation tool to study the device. For their input parameters Vmin = 8V Vmax = 40V,…
Hi Dave,
To help reduce the errors, you will have to use one common library for both the schematic and PCB. I would suggest to the use the board file library and use the script to generate the library. Then save the library as: AcceleratedDesigns_Lib…
Hi,
Were you able to achieve higher current with this modification? I would say you also add some kind of heatsinking for higher current or maybe put a fan near the IC.
You can post again your latest layout if you decide to change the board and…
Other Parts Discussed in Thread: LM2678 Hello, Webench CAD tools used to get the LM2678 (Adj.) library (Date: 14.08.2015). When testing the PCB was noticed that the Schematic Symbol does not match the PCB Symbol? Thank you.
Hello,
What package are you using for LM2678? Have you soldered the thermal pad of the IC to the ground plane? Would you please share your layout?
Regards,
Akshay
Other Parts Discussed in Thread: LM2678 , LMZ23610 , LM5119 Dear All,
I need more than the 5amps which gives the IC LM2678. I would like to as if i could put some of them for example 4 in parallel to increase the output current.
Is that possible…
The best thing to do is to use Webench to design your supplies. I have attached designs for a 5V and 12V that should match you needs.
They use the fixed voltage devices, but you can use the adjustable devices by adding FB resistors if you wish.
The…
Hi,
I am making a power supply system for a Bot with the LM2678- since the design is very simple. I am keeping the different voltages (3.3,5,9,12V) in the same board. I am using a Coilcraft SHeilded Inductor.
Since the board layout is simple , I was…
