 Hello, my name is Ryan Metivier. I'm a product marketing engineer at ST Micro Electronics. And in this presentation, I'm going to talk about ultra low power converters featuring Viper Plus. In this presentation, we're going to briefly touch on four primary topics. An overview of Viper Plus, compact solutions with small bills of material, energy saving solutions, and solutions for high voltage systems. Viper Plus is a family of high voltage converters for AC to DC switched mode power supplies. Viper Plus simplifies AC to DC converter designs by integrating a mixed signal controller and a high voltage MOSFET. Today, we're going to focus our attention on Viper 01, 11, and 31 for low power applications, Viper 12, and Viper 22 for reduced bomb systems, and Viper 26K for high voltage converters. For more information on other families in the Viper Plus line, please visit us on www.st.com or reach out to your local sales rep. The Viper 122 and Viper 222 have been optimized for low bomb count power supplies for home appliances, smart home devices, and smart metering applications to 8 watts. This family features a 730 volt Avalanche rugged power MOSFET and embedded high voltage startup. The embedded area amplifier makes the Viper 122 and 222 suitable for both primary and secondary side regulation. The integrated features such as air amplifier, 730 volt MOSFET, and high voltage startup make the Viper 122 and 222 an ideal solution for low bomb count offline buck converters. The ST Eval VP 12201B is a fully functional, wide input voltage, it's a 15 volt at 200 milliamp supply, and delivers an average efficiency of more than 77% in a compact 30 millimeter by 30 millimeter footprint. The Viper 01, 11, and 31 families have been optimized for low power consumption and reliable operation. Like other Viper plus products, these devices also feature an integrated controller with 800 volt Avalanche rugged MOSFET. Unique features to this group include input and output overvoltage protection and low standby operation of less than 10 milliwatts. This combination of features makes these converters ideal for building automation, home appliances, auxiliary supplies, and for industrial applications such as metering. This family of Viper's are ideal for flyback power supplies up to 16 watts in buck converters without a current to 500 milliamps. They're available in multiple switching frequencies to best suit your application, as well as several options for current limiting of the drain. There's also a very healthy evaluation ecosystem for this family, including evaluation boards, spice models, and e-design suite simulation tools. The Viper 26K is optimized for high AC voltage and three phase applications up to eight watts. Such applications include power supplies for industrial systems, ultra wide input voltage auxiliary supplies for LED lighting and air conditioners, and other industrial equipment. The integrated 1,050 volt Avalanche rugged MOSFET makes the Viper 26K the highest voltage switched mode power supply in the industry. The traditional approach for achieving higher than 900 volts with lesser switched mode power supplies requires stacking an additional MOSFET in series with the integrated 700 volt FET. In addition to the complexity in running a stacked FET, the circuit designer must take care to make sure that both MOSFETs turn on at the same time. Otherwise, there's a very high risk of MOSFET breakdown and poor long-term reliability. The Viper 26K solves this problem by utilizing a 1,050 volt integrated MOSFET, eliminating the need for a stacked FET. This drastically simplifies, reduces the cost, and improves the overall reliability of the design. This implementation saves a total of 10 components, including six high voltage components. Thank you for taking time to learn more about some of ST Microelectronics intelligent power supply solutions. For more information on these products, please visit us at www.st.com.