Part Number: LM5001 Tool/software: Dear Specialists,
My customer is looking for negative to negative buck solution.
At related thread, I understand LM5001 is available.
Could you please answer following questions?
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(1) Could you please let…
Hi Hassan,
thank You for the fast reply, the values from the calculator are quite different from those suggested by Webench,
Which tool should I trust? Webench or calculator?
With the values sugested by Webench I get 29° phase margin @ Vin=3V, see…
Part Number: LM5157 Tool/software: Hi Team,
My boost converter is intended to operate in a bypass or idle mode under normal conditions and activate only when the input voltage falls below 6.9 V, in order to sustain the output voltage above 6.9 V with…
Hi Niklas,
Thanks. Did as you suggested, but simulation check failed.
Here is schematic with components paranetrized according exel tool:
6253.schematics.pdf
Here is simulation:
transient_200us.pdf
and here is excel ...
LM5157-58_v0.xlsx…
Part Number: LM51581 Tool/software: Hello,
I want to design small boost converter from powered from USB 5V to 48Vout, Iout = 15mA using the LM51581.
I used Calculation design tool (attached my edited excel sheet) - https://www.ti.com/tool/download…
Part Number: LM51581 Other Parts Discussed in Thread: LM5157 Tool/software: Hello, in snva994a application note page 4, the transformer's PRI inductance is calculated as 13 uH, and it says for normal operation they are going to use CCM, but when selecting…
Hi Stefan,
Actually, The simulated parameter is set according to the LM5157 flyback-EVM that I requested in ti.com. The compensation loop is designed by the application note which can also be download in ti.com (see attachment). The C_COMP is 22nF,…
Hello Bryan,
I have attached the filled out quick start calculator excel file for our LM5157 Design
We selected the voltage ripple of 200mv (<2% of 12V output)
Thanks,
Deniel
LM5157-58_Excel_Quickstart_Calculator_for_SEPIC_filled_up.xls…
Part Number: LM51581-Q1 Other Parts Discussed in Thread: LM51581 , LM5157 Ti, please help,
I'm trying to setup the LM51581 for 4-60V in 3.3V out but when I add a 24 Ohm load the LM51581 fries before I get to 30V in. Unloaded I seem to regulate nicely…
