Part Number: LM5175QUICKSTART-CALC The first couple times I worked on the quickstart tool to figure out my starting design, the spreadsheet worked fine. Then it started getting laggier and laggier.
Today, all I get are memory errors, Not enough memory…
Part Number: LM5175QUICKSTART-CALC Hello can you tell me if the minimum output capacitor value given on the quickstart is the value after MLCC derating or before?
Part Number: LM5175QUICKSTART-CALC Just wanted to confirm that a 0 capacitance value calculated for compensation components in the quickstart tool means no capacitor needed? an open circuit?
Also, none of the schottky diode datasheets I'm looking at mention…
Hi Ryan,
the losses of the Buck low side MOSFET can be calculated with:
P_switch.loss = 2 * Deadtime * Fsw * Vsd * I_Out
Deadtime can be set to 50ns
Vsd = Forward Voltage of MOSFET Body diode
I may also use the Quickstart calculator which lets you set…
HI Akhil,
can you please fill the design details and the MOSFET parameters into the quickstart calculator:
https://www.ti.com/tool/download/LM5175QUICKSTART-CALC
and share it here.
Can you also share the schematic.
Please let me also know what you had…
Hi Terho,
thank you for using the E2E forum.
Can you share the schematic?
Can you use the quickstart calculator
https://www.ti.com/tool/download/LM5175QUICKSTART-CALC
enter your design data and share the file here again.
What is your softstart time compared…
Hi Patrick,
Thank you for using E2E forums, could you please use this excel sheet https://www.ti.com/tool/LM5175QUICKSTART-CALC for your design instead of Webench? Regarding the 3.3V input, the device has minimum Vin as 3.5V, maybe you could have a look…
Hello Humphrey,
For testing I would remove first the 10 ohm gate resistors and replace them with 0 ohm.
At the first glance, the schematic seems to be ok, but I did not find the time to fill in the quickstart calculator today: Here you can find it, to…
Hi Zhang,
thank you for using the E2E forum.
Can you please fill out the quickstart calculator which can be found on the product page with your design data and attach it here as well.
https://www.ti.com/tool/LM5175QUICKSTART-CALC
Best regards,
Stefan …
Hello Adithya,
Thanks for reaching out to us via e2e.
Fundamentally the schematic looks good. I would definitely recommend adding footprints for gate resistors, so that they can be added, if necessary.
I could not spend time to calculate all components…