Texas Instruments

LM2853MH-3.3

LM2853MH-3.3 Description

The LM2853MH-3.3 is a fixed-output voltage regulator from Texas Instruments, designed to deliver a stable 3.3V output at a maximum current of 3A. This regulator is part of the SIMPLE SWITCHER® series, known for its ease of use and high efficiency. It operates within an input voltage range of 3V to 5.5V, making it suitable for a variety of applications where input voltage may vary. The regulator features a switching frequency of 550kHz, which allows for the use of smaller inductors and capacitors, reducing the overall footprint of the power supply solution.

The LM2853MH-3.3 employs a buck topology, which is highly efficient and ideal for applications requiring high power density. It includes a synchronous rectifier, enhancing efficiency and reducing power loss. The regulator is housed in a 14-pin HTSSOP package, which is suitable for surface-mount applications. Despite its obsolescence status, the LM2853MH-3.3 remains a reliable choice for power management solutions due to its robust design and performance.

LM2853MH-3.3 Features

• Fixed Output Voltage: The LM2853MH-3.3 provides a stable 3.3V output, ensuring consistent power delivery to sensitive electronic components.
• High Efficiency: The buck topology and synchronous rectifier design maximize efficiency, reducing power loss and heat generation.
• Wide Input Voltage Range: Operating from 3V to 5.5V, the regulator can handle a variety of input sources, making it versatile for different power supply scenarios.
• High Output Current: Capable of delivering up to 3A, the LM2853MH-3.3 can power demanding applications without compromising performance.
• Compact Design: The 14-pin HTSSOP package allows for surface-mount installation, saving space on the PCB and enabling compact power supply designs.
• High Switching Frequency: The 550kHz switching frequency enables the use of smaller passive components, further reducing the size and cost of the power supply.
• Moisture Sensitivity Level 1: The regulator is suitable for unlimited exposure to moisture, enhancing its reliability in various environmental conditions.
• REACH Compliance: The LM2853MH-3.3 is REACH unaffected, ensuring compliance with environmental regulations and standards.

LM2853MH-3.3 Applications

The LM2853MH-3.3 is ideal for applications requiring a stable 3.3V power supply with high efficiency and compact design. Some specific use cases include:

• Embedded Systems: Providing power to microcontrollers, sensors, and other low-voltage components.
• Telecommunications: Powering base stations, routers, and other telecom equipment that require reliable and efficient power management.
• Industrial Controls: Supplying power to PLCs, motor controllers, and other industrial devices.
• Consumer Electronics: Used in devices such as smartphones, tablets, and laptops where space and efficiency are critical.
• Automotive Electronics: Suitable for in-vehicle infotainment systems, electronic control units, and other automotive applications.

Conclusion of LM2853MH-3.3

The LM2853MH-3.3 is a robust and efficient fixed-output voltage regulator that offers significant advantages over similar models. Its wide input voltage range, high output current, and compact design make it a versatile solution for a variety of applications. The inclusion of a synchronous rectifier and high switching frequency enhances efficiency and reduces the size of passive components, further optimizing the power supply solution. Despite its obsolescence status, the LM2853MH-3.3 remains a reliable choice for power management, ensuring consistent performance and compliance with environmental regulations.