The no load current(not IQ) of TPS61031 could be larger than 40uA(IQ),because you need to consider the current going through the feedback divider.The value of no load current also depends on your feedback resistor value.
Yes,the LDO has smaller IQ …
Other Parts Discussed in Thread: TPS63001 , TPS61030 , TPS43000 , TPS63020 , TPS61031 Dear All we are looking for step up voltage
input 1.8V
output 3.7 V
max pick current for 0.5mS 2.5 Ampere
average 400mA
looks like the TPS63001 easly…