STMicroelectronics

UPSD3333D-40U6

The UPSD3333D-40U6 is a high-performance, synchronous, step-down (buck) regulator from STMicroelectronics. It is designed to provide efficient power conversion for a wide range of applications, including automotive, industrial, and telecom systems.

Description:

The UPSD3333D-40U6 is a monolithic power module that integrates a power MOSFET, a synchronous rectifier MOSFET, and a controller into a single package. It offers a wide input voltage range of 4.5V to 40V and can deliver a continuous output current of up to 6A. The module operates with a switching frequency of 600kHz, allowing for smaller external components and a more compact design.

Features:

1. High efficiency: The UPSD3333D-40U6 offers high efficiency up to 95%, reducing power dissipation and improving overall system performance.
2. Synchronous rectification: The use of a synchronous rectifier MOSFET minimizes conduction losses and improves efficiency, especially at higher input voltages and currents.
3. Wide input voltage range: The regulator can handle input voltages from 4.5V to 40V, making it suitable for various applications with different power sources.
4. Programmable output voltage: The output voltage can be adjusted using an external resistor divider, allowing for flexibility in system design.
5. Protection features: The UPSD3333D-40U6 includes over-current protection, over-voltage protection, and thermal shutdown protection to ensure reliable operation and prevent damage to the system.
6. Small form factor: The module's compact size allows for easy integration into space-constrained applications.
7. High switching frequency: Operating at 600kHz enables the use of smaller external components, further reducing the overall size of the power supply.

Applications:

1. Automotive systems: The UPSD3333D-40U6 is suitable for various automotive applications, such as infotainment systems, LED lighting, and battery management systems.
2. Industrial control systems: The regulator can be used in motor drives, robotics, and other industrial applications that require efficient power conversion.
3. Telecommunications: The UPSD3333D-40U6 is ideal for powering base stations, routers, and other telecom equipment that require reliable and efficient power supplies.
4. Consumer electronics: The regulator can be used in portable devices, such as laptops, smartphones, and tablets, to provide efficient power conversion and charging.
5. Renewable energy systems: The UPSD3333D-40U6 can be used in solar inverters and energy storage systems to improve overall system efficiency and performance.