LM34904ITMX/NOPB

The LM34904ITMX/NOPB is a high-performance, synchronous buck regulator from Texas Instruments, designed for efficient power management in a variety of applications. This device is particularly well-suited for powering processors, FPGAs, and other digital loads that require a stable and adjustable output voltage.

Key Features:

1. Input Voltage Range: The LM34904 operates over a wide input voltage range, typically from 4.5V to 17V, making it versatile for different power supply configurations.

2. Output Voltage: The output voltage can be adjusted from 0.8V to 5V, allowing for flexibility in meeting the specific voltage requirements of various components.

3. High Efficiency: The regulator is designed to achieve high efficiency, often exceeding 90%, which helps in reducing heat generation and improving overall system reliability.

4. Synchronous Operation: The synchronous buck architecture minimizes switching losses, enhancing efficiency, especially under light load conditions.

5. Current Capability: The LM34904 can deliver up to 4A of continuous output current, making it suitable for demanding applications.

6. Integrated Features: It includes features such as:

   • Soft Start: To limit inrush current during startup.
   • Power Good Indicator: To signal when the output voltage is within the desired range.
   • Overcurrent Protection: To prevent damage to the device and the load in case of a fault condition.
   • Thermal Shutdown: To protect the device from overheating.

7. Control Method: The device employs a voltage mode control scheme, which provides fast transient response and stable operation across a wide range of load conditions.

8. Package Type: The LM34904ITMX/NOPB is available in a compact 16-pin HTQFP (Thin Quad Flat Package), which is suitable for space-constrained applications.

9. Operating Temperature Range: It is rated for operation in a wide temperature range, typically from -40°C to +125°C, ensuring reliability in various environmental conditions.

Applications:

The LM34904 is ideal for use in:

• Point-of-load (POL) converters
• Distributed power architectures
• Telecom and networking equipment
• Industrial automation systems
• Consumer electronics

Conclusion:

The LM34904ITMX/NOPB from Texas Instruments is a robust and efficient buck regulator that provides designers with a reliable solution for powering modern electronic devices. Its combination of high efficiency, adjustable output, and integrated protection features makes it a popular choice for a wide range of applications in both consumer and industrial markets.