Part Number: LM27403 Tool/software: Hello,
I am having trouble simulating a schematic of the LM27403. I used the Power Designer to calculate the schematic and built it, but the voltage at the output is 0V in my simulation. I have already checked the…
Part Number: LM27403 Tool/software: An evaluation board (4 layer PCB) has been designed for the LM27403, to evaluate the performance for 12V input, 9.6V output at 15A. Circuit was first created using Webench Power Designer, then component values have…
Part Number: LM27403 Tool/software: We have a design where the design never switches on startup. A 33nF capacitor is connected to SS but as can be seen below, SS never starts to rise as would be expected. VDD is present as expected. The only difference…
Part Number: LM27403 Other Parts Discussed in Thread: CSD17573Q5B , , CSD17309Q3 , TPS40425 Hi Teams, In WEBENCH@ POWER DESIGNER, I select LM27403 (buck controller with discrete NMOSs) in DC/DC Power Designs. TPS40425 is a single phase controller combined…
Part Number: LM27403 Hi,
As the LM27403 circuit, current-sense differential pair should be routing as the same.
But at TI reference PCB design, Rset is put close to LM27403, not close to inductor as Rcs.
Can you double check it and give your…
Part Number: LM27403 Hi,
Test the tracking function of LM27403 to measure the following waveforms
Vin 12V, Vo set to 5V, load: 2A Startup time Sample 2 -> Sample 1 -> Sample 3
Take Sample 1 as the master, Sample 2 (3.3V), and Sample 3 (2.5V) as…
Part Number: LM27403 I'm seeing instability in my LM27403 design at colder temperatures. It appears that this comes from the compensation loop filter component selection. 90% of the units with this regulator are fine over the operating ambient temp range…
Part Number: LM27403 Hi Team,
At present, customers use this product for low voltage and high current applications, but this product will be very close to the fixture. Since IC is a heating element, customers will worry about the accuracy of the fixture…
