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TPS5116输出1.8V电压偏高1.88V~1.92V

Other Parts Discussed in Thread: TPS51116

如题用TPS5116作为DDR2的电源,但是上电后电压偏高,最高达1.94V,超过DDR2手册标准的1.9V。求教如何解决

原理图:

PWM:

 

SCHEMATIC1 _ 10-Power Supply.pdf