Part Number: LM27403 Other Parts Discussed in Thread: LM5148-Q1 We are evaluating using the LM27403 to control an integrated GaN power stage. Happy to send a schematic snippet for review if needed.
The proposed configuration is:
LM27403 SW connected…
Part Number: LM27403 We used web bench to design a 8A, 5V step down design using a nominal +12V supply.
This is not starting up. Attached is the schematic and layout. This is being powered by a 12V, 6A supply. For some reason we are seeing a approxmately…
Part Number: LM27403 Greetings,
I have a question about the attached design. I haven't been able to simulate it due to problems with the SPICE model, but I think you can easily resolve my question.
Considering the following:
Vin = 12 V, L2 (560…
Part Number: LM27403 We used the web bench designer for 11-13V input, 5V output, 8A, and high efficiency. We used the BOM as-is. We tied sync to GND as in the datasheet, and changed the 50K power good pull up to 20k. All this design does is a 1ms ramp…
Part Number: LM27403DESIGN-CALC Other Parts Discussed in Thread: LM27403 , LM27402 Hi Support team,
Can you share the SIMPLIS models of LM27403 or LM27402?
Thank you,
Duc Nguyen
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…
2. You can use webench Power Designer to check if LM27403 is appropriate for your applications.
12V to 5V at 30A can dissipate a lot of power and may have a limited application space depending on switching frequency and ambient temperature.
Using…
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…
