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TPS61291: TPS61291DRVR -- Is there a better solution for one alkaline battery?

Part Number: TPS61291
Other Parts Discussed in Thread: TPS61299, TPS61021A
The TPS61291DRVR voltage range is supported down to 0.9V, but applications with one alkaline battery may encounter stratup voltage problems. 
Is there a better solution for one alkaline battery?