我使用了TI的DCDC模块TPS54541,同步时钟外部提供(希望整个系统所有电源开关时钟同步),根据手册:轻载时会工作与pulse skip mode,外同步时轻载也会跳频工作吗?多大电流算是轻载?
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我使用了TI的DCDC模块TPS54541,同步时钟外部提供(希望整个系统所有电源开关时钟同步),根据手册:轻载时会工作与pulse skip mode,外同步时轻载也会跳频工作吗?多大电流算是轻载?
就是说只要轻载就会进入pulse skip mode,是吗?多大负载电流算轻载?
Hi
如果是有与外部同步,见如下描述。
. The internal PLL remains operational when in Eco-mode. When operating at light
load currents in Eco-mode, the switching transitions occur synchronously with the external clock signal.