STMicroelectronics

MJD45H11T4

The MJD45H11T4 is a high-power, high-efficiency, synchronous step-down (buck) regulator from STMicroelectronics. It is designed to provide a stable output voltage from a wide input voltage range, making it suitable for a variety of applications.

Description:

The MJD45H11T4 is a highly integrated synchronous step-down regulator that offers high efficiency and high power density. It features a wide input voltage range of 4.5V to 45V and can deliver an output current of up to 11A. The device is available in a compact thermally enhanced 3x3mm QFN package.

Features:

• Wide input voltage range: 4.5V to 45V
• Output current up to 11A
• High efficiency: up to 95% depending on the input voltage and output current
• Synchronous rectification for improved efficiency at high currents
• Thermal shutdown and over-current protection
• Short-circuit protection
• Soft-start function to minimize inrush current
• Programmable output voltage from 0.9V to 40V
• Small 3x3mm QFN package

Applications:

The MJD45H11T4 is suitable for a wide range of applications that require high efficiency and high power density. Some of the potential applications include:

1. Portable devices: Powering smartphones, tablets, and other portable electronics.
2. Industrial equipment: Providing power to motors, sensors, and other components in industrial equipment.
3. LED lighting: Driving high-power LED arrays in lighting applications.
4. Medical equipment: Providing stable and efficient power to medical devices.
5. Telecom equipment: Powering base stations and other telecom equipment.
6. Automotive: Providing power to various electronic systems in vehicles.

In summary, the MJD45H11T4 is a high-power, high-efficiency synchronous step-down regulator from STMicroelectronics that offers a wide input voltage range and programmable output voltage. It is suitable for a variety of applications that require high power density and high efficiency, including portable devices, industrial equipment, LED lighting, medical equipment, telecom equipment, and automotive systems.