I made LT1305 for 5V from 3V battery.
Basic operation is good but I want to use shutdown fuction
So I apply 5V output to shutdown pin ( No3 of LT1305)
But the output is not zero voltage, keep 2.5V.
How can I shutdown the LT1305?
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Even by disabling it, you can not isolate the out put from the input in a traditional boost converter setup due to the diode. what you need is to configure circuit in a slightly different way to form a SEPIC converter.
see figure 74 in ADP1612/13's datasheet
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