TOP246Y Off-line Switcher IC

The TOP246Y Off-line Switcher IC is a high-performance integrated circuit designed for off-line switch-mode power supplies (SMPS) and DC-DC converters. As part of the TOPSwitch family, this IC integrates a high-voltage MOSFET switch, PWM controller, and protection features into a single package, simplifying power supply design while improving efficiency and reliability.

It’s ideal for use in adapter power supplies, battery chargers, LED drivers, industrial power systems, and other embedded electronics that require compact, efficient, and cost-effective power conversion. With built-in protections against over-temperature, over-current, and over-voltage conditions, TOP246Y enables safer and more robust power supply designs.

Key Features :

• Integrated high-voltage MOSFET and PWM controller

• Designed for off-line switched-mode power supplies

• High efficiency and low standby power

• Over-temperature and over-current protection

• Compact DIP/SMD package (model dependent)

• Simplifies SMPS design with reduced external components