Dear Sir
My customer want use TPS62220 in Vin 3.3~4.2V and Vout 3V/400mA~500mA. but need Iq max<30uA.
from DS, the Iq max is 25uA. may we double check if TPS62220 suit this application or any suggest part?
Best regards,
Bogey
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Two things you need to be aware of:
Max output current = 400mA
Iq max = 25 uA is "non-switching" condition. Usually this is measured by forcing FB pin high in open loop circuit.