I'm looking to use the TPS61240 to generate 5 V from a lithium-ion battery. Our max. load current is about 15 mA. Assuming a target for inductor peak-to-peak ripple current of 40% of load current, the min. calculated inductor value is about 27 uH, much larger than the optimized range of 1.0 to 2.2 uH. What will happen if I use a 27 uH inductor? Or should I use 2.2 uH and let the device run in PFM mode?
Thanks,
Scott