TLV61046A: Datasheet spec issue

Hi Jayce:

That's related to the soft start and short protection function. You can check the details in datasheet. 

If the Vout is higher than 5-6V, the current limit is back to normal value typically. 

Hi Minqiu,

The current should be more than 140mA, rather than 20mA.

Why does the spec related to short protection? Input 2.4V and Output 3.3V are both in the recommended range of the working voltage.

Only Fig 9 show the relationship of the current limit and the input voltage, and cannot get the conclusion you give from this Figure.

B R,

Jayce L

Hi Jaycy:

140mA is a typical value, and the 20mA is the minimum value. 

The current limitation increase after the Vout is high enough. 

Hi Minqiu,

Well, if the minimum current limit value of the internal power switch can be as low as 20mA. Why the output voltage recommended is as low as 3.3V, rather than a value which is corresponding to high enough to give a high enough current limit.

Why no such diagram in the datasheet to direct the usage of low voltage output situation?

It seems that in real application consideration, the device is not suitable for 3.3V output at all.

B R,

Jayce L

Hi Jayce:

It can support Vout=3.3V, but the current limit is lower than high Vout. The typical usage for this device is startup with light load. 

May I know what's the Vin, Vout and load condition?