Part Number: LM3754 Hello Team, Could you please provide the calculus of output capacitor means how the formula derived using ESR of capacitor the formula here was seems different and the ESR of capacitor was playing major role, so please share how the…
Part Number: LM3754 Hello all,
I unclear about the setting of the current limit as explained in the DS.
On p.18 it explains that the current limit is determined by a current setting resistor between the ILIM and CSM pins. The current limit is then…
Part Number: LM3754EVAL Hello,
Can you provide for us the PCB source documents of LM3754EVAL (LM3754 4-phase 100-A buck controller evaluation board)?
We would really appreciate it. Thank you very much.
Regards
Lei
Hi,
For a buck regulator the input capacitors are placed across the MOSFET switches, so they see the full RMS switching current. The RMS current in the input capacitor for a single phase buck is maximum at 50% duty cycle and can be approximated as Icin_rms…
hi, I'm also using LM3754, I get a problem which the current limit setting way is different in the front of the datasheet and the example of the datasheet. Do you see that?
or could you give me some suggestion?
thank you!
Andy,
For 50 A load current you will probably need a controller. There are 6 possibilities:
TPS53667 - 6-Phase, D-CAP+ Step-Down Driverless Buck Controller with NVM and PMBus Interface for AVS www.ti.com/.../tps53667
TPS53647 - 4-Phase, D-CAP…
