Profile: Power Integrations, Inc. specializes in offering high-voltage analog integrated circuits. The LinkZero™-AX product family of integrated offline switching ICs enables designers to achieve 0.00 watts of standby energy consumption in auxiliary power supplies. The devices feature an innovative power-down mode that effectively turns off the auxiliary power supply when the end product is idle. Power-down mode is triggered by a signal accessible to a microcontroller, completely shutting down switch-mode operation and internal switch control circuits, eliminating energy wasted by these unnecessary functions. However, while in power-down mode, the LinkZero™-AX stays alive, allowing the IC to be awakened with a reset pulse or button press. The bypass pin on the IC can also provide up to 500 μA of current for use by any system control or sensing circuit. DPA-switch is a monolithic IC integrating 220 V high frequency MOSFET with all control & fault protection circuitry. Its voltage mode control allows 75 percent duty cycle while providing >5 kHz loop bandwidth. It is used in DC-DC converter module, servers, routers & network line cards, telecom central office equipment and temperature & industrial controls.