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TPS61140 Vin min Boost regulator

Other Parts Discussed in Thread: TPS61140

We want to use the TPS61140 in a 3V Batt application.

 

Datasheet says: Vin min = 2.5V.

 

However we need it to work even at 2.2V minimum.

 

Low Voltage shutdown is specified at around 1.8V.

 

anyone has experience in operating it at that low level of 2.2V ?