Shanghai Prisemi Electronics Co., Ltd, is a high-tech electronics enterprise dedicated in power ICs and power devices R&D and sales. Prisemi mainly focuses on the research of professional power ICs ( charge IC, OVP,Audio Power Amplifier, GaN IC, DC-DC Power management etc. ) and power devices ( ESD, EOS/TVS, MOSFET, GaN HEMT, Transistor, Schottky, etc. ) .