Please help me with it.
i have 1.2 v DC battery with current 2500mA.
Can any one tell me up to how much i can amplify voltage? But current should be atleast 500mA.
And also tell me how to make it.
As Bob suggested this is some related to power management.
The ADP1607 boost regulator can generate a bias voltage (2.5V) for another boost regulator like the ADP1612.
In this case the the ADP1612/13 can boost to 3.3V or 5V from the battery by being powered from the ADP1607.