The MAX17710 PMIC harvests energy from 1-mW to 100-mW power sources for charging THINERGY micro-energy cells (MECs). It integrates a programmable input boost regulator and needs no external components to charge a MEC. Also, the device protects the MEC using a linear shunt-series regulator. Other features include an adjustable low-dropout linear regulator with selectable voltages of 3.3V, 2.3V, or 1.8V. Available in a 12-pin, 3 mm x 3 mm x 0.5 mm UTDFN, pricing starts at $4.11 each/2,500. MAXIM INTEGRATED PRODUCTS, Sunnyvale, CA. (800) 998-8800.