The E28-200 from Ibeos is a SmallSat Electric Power System (EPS) with an input voltage of 14 - 32 V. It has a maximum input power of up to 250 W and, 3.3-Volt, 5-Volt, and 12-Volt outputs, and power distribution functions. This radiation-tolerant EPS has an average efficiency of 92 %, a typical resistance of 15 mΩ, and power consumption of 1.5 W. It supports SPI and I2C interfaces and includes battery under/over-voltage and over-current protection in addition to a configurable watchdog timer for spacecraft loads. This EPS measures 96 x 90 x 14.5 mm and has a flexible peak-power tracking solution capable of efficient solar array power conversion and battery charging.