Part Number: LM2679 Tool/software: Hi, I am making a converter with my university graduation work.
I'm designing a buck converter that takes 24Vac voltage as input and outputs 12.6V dc voltage.
It was designed as shown in the circuit diagram in the…
Part Number: LM2679 Hi
We did an ultrasonic scan of this product and found that there were holes in the molding compound across the bonded wire region, and the layered pins in the bonded wire region were completely separated from the plastic seal. Could…
Part Number: LM2679 Tool/software: I'm hoping this thread will help the next person who searches for this issue. I ran into this problem after following the component selection guidance from the LM2679 datasheet. Most parts listed were obsolete so I tried…
Part Number: LM2679 Hello,
I have my own board with LM2678-5S(everything works well), I changed with LM2679-5S(compatible footprint with protection) and I added a radj = 6.2K/css = 3.3nf. Everything is ok if I load vout.
But when I try a short circuit…
Part Number: LM2679 We are only achieving 86% with an input voltage of 24V and an output of 12V. Worse yet, with the same input voltage we get even worse efficiency at 18V, approximately 83%.
Is there a reference design that matches the efficientcy…
Part Number: LM2679 Hi,
For our internal project we are using LM2679S-3.3/NOPB, LM2679SX-12 buck converters with TO-263 package . There is a center pad in these footprints should we connect it to ground pin of IC or should we keep unconnected?
Part Number: LM2679 Hi,
For our internal project we are using LM2679S-3.3/NOPB buck converter. Kindly review the attached schematics and let me know the comments if any.
Part Number: LM2679 Dear sir,
In LM2679 datasheet, it just list out the rdson data, no Ciss, Coss, Crss of internal DMOS power MOSFET, can you share it with me and customer?
Customer want to use it for Power loss calculation.
Nice day!
Regards…
Part Number: LM2676 Other Parts Discussed in Thread: LM2679 Hi,
We use the LM2676-ADJ for the DC/DC buck from 24VDC to 8VDC, and now, we use the LM2679-ADJ with the same design, but the LM2679 has no output voltage, so please refer to below LM2676-ADJ…
Part Number: LM2679 Hi,
We needed 12v from 24v supply so we are using the constant out LM2679SX-12 but when then inout voltage is slightly increasing let say 25/26 v the outpu is also increaseing from 12to16v can suggest any ideato rectifi
this. …
