The switcher ICs deliver 175 W, 92% efficiency, low standby use, heatsink-free 75 W, wide protection, billions in use. Ready for the next step?
Power Integrations has announced TinySwitch-5, extending the output power of its most widely used family of integrated off-line switcher ICs to 175 W. The new generation achieves up to 92 percent efficiency with basic diode rectification and optocoupler feedback in a classic flyback architecture.
The ICs integrate an advanced control engine that automatically manages switching frequency and power delivery to maximize efficiency, including under light-load conditions. This allows power supplies to meet the European Commission Energy-related Products (ErP) Directive 2009/125/EC limit of 300 mW for light-load power consumption, while still providing up to 220 mW of output for display, control, and communication functions.
An upgraded thermal package enables ICs to deliver up to 75 W without a heatsink. Built-in line under- and over-voltage protection further enhances robustness, ensuring reliable performance even in regions with unstable mains power.
With more than six billion units shipped worldwide, TinySwitch ICs are widely adopted in bias and auxiliary supplies across appliances, computing, communications, industrial, and medical applications. Designers value the series for its simplicity and high efficiency, especially under light-load conditions.
TinySwitch ICs were also the first to feature Power Integrations’ EcoSmart™ technology, credited with saving an estimated 200 terawatt-hours of electricity since 1998 by cutting standby power waste.
Silvestro Fimiani, director of product marketing at Power Integrations, said: “TinySwitch has become the gold standard for small power supplies because of its efficiency and ease of use. With TinySwitch-5, designers can scale up to 175 W at maximum power, while easily achieving 220 mW of output and meeting the needs of appliance manufacturers subject to the European Union ErP-mandated 300 mW standby power rule.”
