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LM2621: Increasing the Output current of Step-Up Boost IC (*Parallel Arragement)

embedded dev
Prodigy 180 points
Part Number: LM2621
Other Parts Discussed in Thread: TPS61022

Dear Sir,

Present we are using only single LM2621 dc boost IC, the design is to give output of 5v /500mA  for Input range of 1.8 to 3.6v.

Fir: Our Boost circuit

We want to increase the output current to 1Amp, so can we combine the two boost circuits in parallel having the same common input ? Is there any other method also to do the same?

Thanks Regards,

Harinder Singh