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请教TPS电路元件参数

Other Parts Discussed in Thread: TPS54331, SWITCHERPRO, TPS62140, TPS562209, TPS563209, TPS54329

继续设计制作一个DC降稳压电源,

1、输入电压:5.5-7.5V;

2、输出电压:4V;

3、输出电流:10mA-2A

选用在上述输出电流范围内效率都比较高的TPS54331芯片,参考了说明书中给的应用实例电路,但由于输入输出电压不一样,有几个阻容元器件不知怎样改进,

也没有用过SwitcherPro软件,由于时间很紧,也来不及细算,就烦请专家们给予直接指点了。

谢谢了!