Dear TI ,
Please help check SCH.Thanks
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Hi,
What is your 3.3V and 5V output max loading?
Thanks,
Lishuang
Hi,
1. 5Vout inductor Isat is only 9.5A which is smaller than output max loading 11A. Recommend to change a high Isat inductor. Isat higher than OCL is better.
2. As SCH comments, recommend 5Vout inductor to 3.3uH, 3.3Vout inductor to 4.7uH. Because using 2.2uH inductor, the inductor ripple current will be large.
3. If the inductor is changed, please also check the over current limit setting point since it combines with inductor ripple.
Thanks,
Lishuang