Power Integrations (Nasdaq: POWI ), the leader in high-voltage integrated circuits for energy-efficient power conversion, today announced that Balu Balakrishnan, the company’s CEO since 2002, will retire from that role once a successor is in place. The company’s board of directors has retained an executive search firm to assist in identifying its next CEO; both internal and external candidates will be considered. Mr. Balakrishnan, 70, intends to serve as executive chairman of the company’s...