Part Number: LM5145 Other Parts Discussed in Thread: , LM25145 , LM5146 Hi,
On the LM5145 product page both tools are listed. The Excel sheet looks similar, same input boxes. But when filling the sheets with the same requirements and values, I get large…
Part Number: LM5017-QUICKSTART-CALC Other Parts Discussed in Thread: LM5017 Is it possible some error in calculating Vout in the spreadsheet has gone undetected? Sometimes, the col for Vout will be wrong and in white so one cannot correct that.
An interesting…
Part Number: LM5143DESIGN-CALC Other Parts Discussed in Thread: LM5143-Q1 Hi, Team,
Please let me confirm about "Effiency/Power Loss Analyzer shown in IM5143-Q1 Quickstart Design Tool. In the section of "Effiency/Power Loss Analyzer" in the file,…
Hi,
Could you please fill out the quickstart calculator so we can compare it's values against your schematic - www.ti.com/.../LM25145DESIGN-CALC
Regards,
Rahil
Hi Rayees,
It would likely be 4 phases for 120A (30A/phase) using 40V Q-grade FETs suitable for an automotive 12V battery input.
Is it 120A on each output, both 3.3V and 6V?
Take a look at the LM25143-Q1 and use its quickstart calculator to assist…
Hello,
There is no input "setpoint" - the whole purpose of a buck regulator is to take a variable input voltage and convert it to a fixed output voltage. Sure, you can have a nominal Vin, which is 12V in your case. Please use the LM5143 quickstart calculator…
Hi J ayanthi,
Please use the LM5145 quickstart calculator to assist with component selection https://www.ti.com/tool/LM5145DESIGN-CALC .
Note the LM5145 EVM is 5V/20A/225kHz using 80V FETs. However, you can likely use 60V FETs here given Vin-max = 48V…
Hello,
You can use the LM25143-Q1 42V input version of the controller here. As it's a controller, the applicable application space is quite broad.
My recommendation is to use the quickstart calculator to assist with your design: https://www.ti.com…
Hi Darshan,
Qoss is the area under the Coss vs. Vds curve at a given voltage and is sometimes given by the FET vendor in the data sheet. Eoss is not typically provided for Si FETs (more for GaN), so you may want to ask the FET vendor. In any event, you…