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LT1161 is switching Output on while supply voltage is getting low

Category: Hardware
Product Number: LT1161

LT1161 Supply is removed , supply voltage is getting slowly lower as caps are discharging.
Inputs of LT1161 are driven to low by uC
Out put is connected to a Load with 5Ohms
When supply Voltage reaches about 4V the Output is switched on for short time .this discharges the caps fast.
Without load output stays on as long as voltage is down to 2.5V

Any Ideas how to prevent this behavior ?