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TIDM-PSFB-DCDC: TPS61088RHLT可以接受输入电源范围:3V~5.5V,输出5V/4A吗?

Part Number: TIDM-PSFB-DCDC
Other Parts Discussed in Thread: TPS61088

1、我想用TITPS61088RHLT或者TI  TPS61088RHLR进行电源设计,输入电源范围:3V~5.5V,输出5V/4A;

2、通过WEBENCH® POWER DESIGNER 仿真,当输入电源<5V时,TPS61088可以输出5V/4A;当输入电源≥5V时,仿真提示:Design update failed. Invalid Efficiency value. It is either <= 0 or > 100%;

3、当输入电压≥5V时,TPS61088的PWM占空比相当于100%,输出电压等于输入电压,请问是这样吗?如果是这样,当输入电源≥5V时,Vout设置在5V,那么实际输出电压是等于5V还是等于Vin?

4、如果输入电压在5V~5.5V,而Vout设置在5V,会不会造成TPS61088器件损坏?

期待您的回复,急急急!!!