I am currently working on a lower power application using your DA9062 PMIC and I am hoping to improve the design's efficiency and reduce transients in the system.
The PMIC's datasheet specifies a 1uH inductor for all four of its bucks - is this inductance restricted because of limitations with the internal circuitry or can it be adjusted to improve the current ripple for systems with a lower max current draw requirement?
Our system has a max current draw of 0.5A, with Vin(max) of 4.2V and Vout(max) of 1.25V.
In out max loading condition, using a 1uH inductor, the inductor ripple current is ~40-60% of current draw. Can I increase the inductance to say 2.2uH to reduce to the ripple current to ~20-30% in the max loading case?