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TPS61088: Low input voltage and high current compatibility

Part Number: TPS61088
Other Parts Discussed in Thread: PMP9772,


TPS61088 can give 12V,4.7A (56 W) output at 60 degree celcius for input range 6V - 8.4V (according to WEBENCH designer). But our input range is 2.5V-4.2V and we want to drive around 30W (9V,3A or 12V,2.5A) load at same temperature conditions.

I came across one such design PMP9772 which takes low input voltage but Can this design(PMP9772) or any other circuit fulfill our requirement? Please suggest any boost circuit for this conditions

Below is the link to my question about PMP9772.