The piezoelectric ceramic composition of the present invention contains a main component represented by general formula {mO3-nM3M3O3} or {mO3-nM4M5O3} and x, y, m, and n are defined to be 0. This invention thus relates to the seeds of soybean variety XB48P03, to the plants of soybean XB48P03 to plant parts of soybean variety XB48P03 and to methods for producing a soybean plant produced by crossing soybean variety XB48P03 with another soybean plant, using XB48P03 as either the male or the female parent. The power management control unit may be arranged to control the pass transistors and voltage regulators to provide different amounts of power to the subsystem circuits.