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Tool/software: WEBENCH® Design Tools
Hello,
I selected the TPS54526 for my power supply design, since it met my requirements:
1. Vin is 5V to 6V
2. Vout is 3.3V
3. Iout is 5A
In table 2 of the TPS54526 datasheet, it even gives recommended values for the L/C for 3.3Vout. However, when using Webench, it gave an error when using the TPS54526, because it calculated the switching frequency needed (~711kHz) to be above the capability of the TPS54526. Is Webench in error?
Regards,
Mark
This is because of the max duty cycle. For 5Vin, the duty will be limited. If you use the 6Vin, it can be OK.
