STMicroelectronics VIPER114LSTR Product Overview

The VIPER114LSTR is a high-performance, low-power offline switched-mode power supply (SMPS) primary switcher from STMicroelectronics, a global leader in semiconductor solutions. Designed for a wide range of applications, this device is particularly suited for use in power adapters, auxiliary power supplies, and other power conversion applications requiring a compact and energy-efficient solution.

Key Features

• High Voltage Capability: The VIPER114LSTR can handle a wide input voltage range, making it suitable for universal AC mains supply operations.
• Energy Efficiency: With its integrated Pulse Frequency Modulation (PFM) control, the device ensures high efficiency across a wide load range, contributing to energy savings and reduced heat dissipation.
• Low Standby Power: The quiescent current is extremely low, enabling the device to achieve very low standby power consumption, which is critical for meeting energy-saving regulations.
• Protection Features: The VIPER114LSTR includes multiple protection features such as overcurrent protection, overvoltage protection, and thermal shutdown, ensuring safe operation and preventing damage to the power supply and the load.
• Integrated MOSFET: The device integrates a high-voltage power MOSFET with rugged avalanche characteristics, simplifying the design and reducing external component count.
• Soft-Start: The soft-start function limits the inrush current at startup, improving the reliability of the power supply.
• Minimal External Components: The VIPER114LSTR is designed to work with a minimal number of external components, facilitating a compact and cost-effective power supply design.

Applications

The VIPER114LSTR is versatile and can be used in a variety of applications including:

• Power adapters for consumer electronics
• Standby and auxiliary power supplies for home appliances and office equipment
• Industrial power supplies requiring a small form factor

With its robust design and comprehensive set of features, the VIPER114LSTR from STMicroelectronics is an excellent choice for designers looking to create efficient and reliable power solutions.