TinySwitch-5 Unleashes Up to 190 W Output and Is 92% Efficient in Classic Flyback Architecture

 

TinySwitch-5 Unleashes Up to 190 W Output and Is 92% Efficient in Classic Flyback Architecture

With 6 billion units shipped and counting, Power Integrations’ iconic TinySwitch product family has been the go-to switcher IC for power supply designs. Using basic diode rectification and optocoupler feedback, the family has set the standard for design simplicity and reliability for more than 20 years. Now, the new TinySwitch-5 devices offer increased maximum output power—175 W offline and 190 W with power factor correction—while achieving up to 92% full-load efficiency, all without changing the schematic.

TinySwitch-5 ICs feature an advanced control engine, which seamlessly adjusts switching frequency and energy per cycle to optimize efficiency, even at light loads—up to 87% efficient at 1% load. This allows power supplies to provide up to 220 mW output in standby for display, controls, and communications functions, while meeting the needs of appliance manufacturers subject to the European Union ErP-mandated 300 mW standby power consumption limit.

TinySwitch-5 devices are available in through-hole packaging for maximum output power and surface-mount packaging for heatsink-free designs with PCB cooling. The surface-mount option also includes an enhanced thermal package that enables up to 75 W output without a heatsink. In addition, line under- and over-voltage protection ensures robustness for use in areas with unstable mains supply.

TinySwitch ICs were the first to feature Power Integrations’ award-winning EcoSmart technology, which has saved an estimated 200 terawatt-hours of electricity since 1998 by slashing wasted standby power. TinySwitch-5 carries on the legacy by realizing high efficiency across the load range and dramatically increasing the available power, while maintaining design simplicity for bias and auxiliary supplies in appliance, computing, communications, industrial, and medical applications.

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