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https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/796303/lm5175-chip-heating-is-serious-when-the-input-voltage-is-greater-than-9-v-vcc-output-is-still-only-4-v
设置输入15V、输出5V、1A。 芯片始终损坏、发热严重、VCC 输出仅为4V、四向驱动脉冲的振幅仅为4V、占空比不符合理论值。 此外、当芯片未损坏时、开关噪声很高
