LM2623: Calculation of the Inductor

Hi Jason,

What's the load current and input voltage range? LM2623 has a maximum 10V limit on BOOT, VDD, EN pin, which means it needs an external zener diode.

Hi Zack,

The input voltage is 2VDC and the output current is 2A.

Regard's

Jason

Hi Jason,

The load current is too high for LM2623 and the current limit will be triggered.
Is the the 2V input voltage a constant value? or this is a minimum value for input voltage. I need to know the input voltage range so that I can try to find an appropriate converter or controller.
As the input voltage is quite low for our boost controller, do you have any other voltage rails in the system so that we could set is the supply voltage of IC.

Hi Zack,

Is the load current and output current the same?

The input is Ni-MH battery 2.4V, cut off voltage is 2V. 

If want output voltage is 12V, what is the max output current Iout?

Regard's

Jason