Supercap charging with LTC3459
Supercap charging works fine with Vin=3V. However if we change to Vin=2V the output voltage Vout<=0.8V only (permanet, input current is 70mA) and the supercap is not charged anymore.
Also when we switch back to Vin=3V we still measure Vout<=0.8V. It seems LTC3459 is somehow damaged when changing Vin from 3V to 2V.
Any idea what could cause this?