问:PGTH 在 TPS2663 中有何作用?
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答:通常,PGTH 用于监控输出电压电平,以便使用 PGOOD 信号来控制下游负载。
在 TPS2663 中,PGTH 还用于在 PGTH 电压高于 PGTH 阈值时实现快速瞬态恢复。
当不需要 PGOOD 信号时,PGTH 需要连接到 GND。