Hello Mr. Rao,
I would like to use the SN6505b to output two regulated voltages with (LDO). : 5V and 3V3 and at least 500 mA (or more) at 5V. The Input voltage at the Primary side should be 5V. I have checked the datasheet and it suggests the tranformer "750315371" for 5V to 5V applications but without LDO. for the 5V Output. I would really like to use LDO for the 5V since the voltage should be really stable. Do you have a siggestion for another transformer? This one has got the turns Ratio 1 : 1.1 I think I Need at least 1.4 or 1.5.
What about the 3.3V ? is there any issue when connecting the second LDO for 3V3 at the Output of the 5V LDO one?
If using the unregulated 5V Output as suggested by the datasheet, could you please tell me how stabble it is? Is it suitable to supplying any usb Port for external USB Memory for example?
As General question : What is the Minimum Input current i should supply at 5V to the SN6505B Input to get about 500mA. Is the switching frequency after powerering up the device always constant? Does it always Switch 1A all the time all the time
Thank you in advance.
Gil