VIPER20A-22-E [STMicroelectronics]

The VIPer20A-E is a primary-side integrated circuit for offline power supplies, combining a PWM controller with a high-voltage Vertical Power MOSFET (700V/0.5A). It features adjustable switching frequency up to 200 kHz, current mode control, soft start and shutdown, automatic burst mode for low standby power (<1W), and integrated start-up supply. It supports primary or secondary regulation loops and reduces component count compared to discrete solutions.