LM3478QMMX/NOPB

The LM3478QMMX/NOPB is a versatile, high-performance switching regulator from Texas Instruments, designed for a variety of applications requiring efficient power management. This device is particularly well-suited for use in LED drivers, battery chargers, and other power supply applications.

Key Features:

1. Topology: The LM3478 operates as a boost (step-up) converter, allowing it to increase input voltage to a higher output voltage, making it ideal for applications where the input voltage is lower than the desired output voltage.

2. Input Voltage Range: It supports a wide input voltage range, typically from 2.97V to 40V, which provides flexibility in various applications, including those powered by batteries or other low-voltage sources.

3. Output Voltage: The output voltage can be adjusted up to 60V, making it suitable for driving high-voltage loads such as LEDs or for use in high-voltage power supply circuits.

4. Switching Frequency: The device features a programmable switching frequency, typically adjustable from 100 kHz to 1 MHz. This allows designers to optimize the trade-off between efficiency and component size.

5. Efficiency: The LM3478 is designed for high efficiency, often exceeding 90%, which is crucial for battery-powered applications to extend battery life and reduce heat generation.

6. Current Limit: It includes a current limit feature that protects the device and the load from overcurrent conditions, enhancing reliability and safety in the circuit.

7. Thermal Protection: The regulator incorporates thermal shutdown capabilities, which prevent damage due to overheating, ensuring safe operation under various load conditions.

8. Package: The LM3478QMMX/NOPB is housed in a compact 8-pin VSSOP (Very Thin Shrink Small Outline Package), which is suitable for space-constrained applications.

9. Control Method: It utilizes a peak current mode control scheme, which provides fast transient response and simplifies the compensation network, making it easier to design stable power supplies.

10. Applications: Common applications include LED lighting, battery management systems, portable devices, and any application requiring efficient voltage conversion.

Additional Information:

• Pin Configuration: The device features pins for input voltage, output voltage, ground, feedback, and switching control, allowing for straightforward integration into existing designs.
• Thermal Characteristics: The package design aids in heat dissipation, which is critical for maintaining performance in high-load scenarios.
• RoHS Compliant: The LM3478QMMX/NOPB is compliant with RoHS standards, making it suitable for environmentally conscious designs.

In summary, the LM3478QMMX/NOPB from Texas Instruments is a robust and efficient boost converter that offers a wide range of features and flexibility for various power management applications, making it a popular choice among engineers and designers.