IC SD6834
New Voltage regulatorsAn SMPS controller operating in current mode. Integrated PWM and PFM control with a high-voltage MOSFET. The most common applications are SMPS for industrial applications as well as household appliances. Typical output operating frequency is 25-67kHz. Drain voltage Vd = up to 650V. Drain current (TC=25 C) Id = 2.5A. Package DIP-8