TN5050H-12WY

TN5050H-12WY is a high-performance power management IC manufactured by STMicroelectronics, designed for efficient voltage regulation in compact and portable electronic systems. It operates with an input voltage range of 4.5V to 36V, making it suitable for a wide variety of industrial and consumer applications. The device delivers a stable output voltage of 12V with a maximum output current of 5A, ensuring reliable power delivery under heavy load conditions. This component features advanced thermal protection mechanisms, including over-temperature shutdown and current limiting, which enhance system reliability and prevent damage from abnormal operating conditions. Its high switching frequency—typically up to 1 MHz—enables the use of small external components such as inductors and capacitors, contributing to a reduced overall footprint and improved efficiency. The TN5050H-12WY also exhibits excellent line and load regulation, maintaining consistent output performance across varying input voltages and load currents. The IC integrates a built-in high-side N-channel MOSFET, simplifying circuit design and reducing the need for external power switches. It supports both continuous conduction mode (CCM) and discontinuous conduction mode (DCM), offering flexibility in power conversion strategies depending on the application’s requirements. Additionally, the device includes internal soft-start functionality to minimize inrush current during startup, reducing stress on the power supply and connected components. Designed for robust operation in demanding environments, the TN5050H-12WY is suitable for applications requiring high efficiency and minimal electromagnetic interference (EMI). Its low quiescent current further contributes to energy savings, especially in battery-powered or always-on systems. The package type is a thermally enhanced 8-pin PowerSO-8, which facilitates efficient heat dissipation while maintaining compatibility with standard surface-mount assembly processes. Common applications include industrial automation equipment, medical devices, automotive electronics, and telecommunications infrastructure. In these fields, the device provides stable power for microcontrollers, sensors, and communication modules, even under fluctuating input conditions. Its combination of high efficiency, integrated protection, and compact form factor makes it ideal for space-constrained designs where reliability and performance are critical.