Hello Mike,
These two parts should be BOM compatible. But I would recommend using the calculator tool for LM5145 and deploy your application details to check the BOM compatibility between the two parts.
https://www.ti.com/tool/LM5145DESIGN-CALC
Best Regards…
If it's stable at all other operating points, then it may be a noise effect. Send along the updated schematic and layout for review. Also, you should complete the quickstart calculator to check compensation and other component values. Here is the link…
HI Arie,
The Fsw of this EVM is 225kHz, and it would be impractical to have a crossover frequency above 20% of Fsw (45kHz). My understanding is that the calculated and simulated plots are correct and there's some issue with the measurement. Also note…
Hello Dave,
Suggest using low ESR ceramic on the input and place close to the FETs as recommended in the datasheet.
You can change the output capacitor in WeBench by selecting alternate component when you "click" on Cout in the schematic. …
Part Number: LM5145 Tool/software: WEBENCH® Design Tools Gentlemen,
I am designing 48v to 24v synchro buck using LM5145.
I found 2 IT design tools:
1. Webench
2. LM5145 Synchronous Buck Controller Design Tool LM5145DESIGN-CALC (excel based);
By entering…
HI Vishal:
I think you can use the excel in below link, and change the low side resistor to see the loop change. in practical way, you need a resistor with external dc souce to adjust the Vo. If you keep high side divide resistor constant, the loop change…
HI
Can you catch the waveform of SW, IL in load transient to see any unstable statues?
how about SYNIN and SYNCOUT Connect way, floating or tie to VCC Or GND
have you used the quick caculation tools for loop design? you can used below tools for checking…
Hello Ben,
WeBench will fail to provide a solution if one of the parameters installed is violated. for higher current designs this is typically a temperature issue not current limit. In direct response to your answer, yes you can use Rsense as detailed…
