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https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/1055685/tps54618-q1-what-are-differents-of-tps54618qrterq1-and-tps54618cqrterq1
器件型号：TPS54618-Q1
TPS54618QRTERQ1和 TPS54618CQRTERQ1有何差异？
您好！
TPS54618CQRTERQ1 (C 版本)在芯片上采用 PL 涂层、可提高器件的汽车稳健性。 它是为了降低故障率。
这两种器件都是引脚对引脚兼容的、并且器件性能不变。
此致、 Alex
