想用ADP5040输出1.8V，只用第2路LDO，输入用4V，EN2接高电平，外部电阻也接好，输入4V测试管脚输入正确，但没有输出电压

Hi,

I wanted to use the ADP5040 Eval board, and unfortunately there is no documentation about this board avaiblable.

Can someone help me out?

Kindly regards
Jan

Hi

Data sheet Rev0 Figure 109 shows ADP5040 Evaluation board layout.

But it is unclear about GND connection.

For example, the relation between shaded area and Top layer, red line.

Please give us the gerber data of evaluation board.

Specially, Instruct…

HI

Is there available 12V input voltage version of ADP5040 PMU?

If not could you propose equivalent PMU for AD9364 RF transceiver, so PMU which max. input voltage would be 16V.

Hi,

AD9361 datasheet 有標明1.3V range 應該在1.267V~1.33V, tolerance 大概2.5%左右~~

假設參考ADI 建議的 ADP1755~~

就datasheet 所描述, 是否所有誤差的產生都在外部電阻, ADP1755 本身的ADJ output沒有任何誤差???

另外, power 文件有提到, 除了ADP1755 LDO 之外, 也可使用switching 的方式~~例如ADP5040~~

但AD5040的誤差更大, 應該無法達到AD9361的標準…