In summary, the Linear Technology LTC4425 has key market differentiators such as a low quiescent current of ~20µA, a 3mm x 3mm DFN-12 and MSOP-12E packages, and resistor programmable charge current up to 2A. In addition to this, it has features and benefits of internal current limit profile that minimizes thermal/inrush problems during charging and protection shunts that reduce charge current if VCAP gets too high.