Part Number: LM5137F-Q1-EVM12V Tool/software: Can you please explain why there is an additional 10Ω resistor in the FB resistor divider (shown below)? The datasheet only states that Rfb1 and Rfb2 should be the same as Rvsns1 and Rvsns2.
Use 3mΩ sense resistance and 4.7uH inductor. Take a look at the 2-phase EVM I just released: https://www.ti.com/tool/LM5137F-Q1-EVM12V .
Most important, note the EN1 and EN2 pins cannot be directly tied together for the ASIL B/D parts (i.e. the LM5137F…
Hi Nicole,
Yes that datasheet looks incomplete. For I would encourage you to used the user guide and the QuickStart calc until this issue is being resolved. 5428.LM5137-Q1_quickstart_calculator_revB6.xlsm and 7266.snvu891.pdf
Part Number: LM5146-Q1-EVM12V Tool/software: Hello. I want to assemble LM5146-Q1-EVM12V, I downloaded the Gerber files for making the board. But in the production the boards come out without holes. Can you fix the Gerber files so that I can order the…
Part Number: LM5146-Q1-EVM12V Other Parts Discussed in Thread: LM5146 Tool/software: Hi support team
I am using LM5146 evaluation board and measuring CISPR25 conduction current method. However, it is failing above 30MHz. Could you please give me some…
Part Number: LM5146-Q1-EVM12V Tool/software: To whom it may concern.
Regarding C15(0.1uF) & R1(2.2Ω) for vin line ,
C15 is placed close to the IC, but is wired with a thin wire on the inner layer.
Is there a reason for that? Also, why is R1 needed…
Part Number: LM5137F-Q1 Other Parts Discussed in Thread: LM5137F , LM5146 , LM5137 Tool/software: Dear TI engineer, how are you?
In my recent project, I used LM5137 as dual channels dc buck converter( 5v, 12v). Meantime, I also use a LM5146 to set down…
Part Number: LM5146-Q1-EVM12V Tool/software: Hello team,
This EVM has over 60uF of input capacitance as shown from the schematic below. Do we really need this large value of input capacitace? Is this value coming from loop stability?
What would be…
Part Number: LM5137F-Q1 Other Parts Discussed in Thread: LM25143-Q1 , LM5171-Q1 , Tool/software: Hi,
I am looking for a TI controller which can meet below Buck converter specifications.
Input voltage 12V to 15V, Output 3.3V/6V, Load current…
Part Number: LM5137F-Q1 Other Parts Discussed in Thread: LM5137-Q1
Tool/software:
Hi,
Regarding https://www.ti.com/product/LM5137-Q1 , https://www.ti.com/product/LM5137F-Q1
1) what are the differences from functional side of these two chips? …
