The LM3502SQ-16/NOPB is a high-performance, adjustable output, step-up DC/DC converter designed by Texas Instruments. This integrated circuit is specifically engineered to drive white LEDs with a constant current, making it an ideal choice for portable devices such as mobile phones, PDAs, and other handheld devices that utilize LED backlighting for their displays.

Key Features

• Adjustable Output Voltage: The device allows for a wide range of output voltages, providing flexibility in the design of LED lighting solutions.
• High Efficiency: With its integrated 0.5A, 40V power MOSFET, the LM3502SQ-16/NOPB offers high efficiency, which is crucial for battery-powered applications.
• Constant Current Regulation: It ensures uniform brightness by delivering a consistent current to the LEDs, enhancing the visual experience for the end-user.
• Small Footprint: The device comes in a compact 10-pin WSON package, enabling designers to minimize PCB space and reduce overall design size.
• Thermal Protection: It features built-in thermal shutdown protection, safeguarding the device from potential damage due to overheating.

Applications

The LM3502SQ-16/NOPB is versatile and can be used in a variety of applications. Its primary use is in driving white LEDs for backlighting in portable devices. Additionally, it can be utilized in general LED lighting and signage where constant current source is required.

Product Quality and Reliability

As with all Texas Instruments products, the LM3502SQ-16/NOPB is manufactured to high standards of quality and reliability. The "NOPB" suffix indicates that this product is offered in an eco-friendly "No Lead" package. This component is also RoHS compliant, meeting the requirements for hazardous substance restrictions.

Conclusion

The LM3502SQ-16/NOPB from Texas Instruments is a highly efficient and reliable solution for LED backlighting in portable devices. With its adjustable output voltage, high efficiency, and constant current regulation, this step-up DC/DC converter is an excellent choice for designers looking to create compact and energy-efficient lighting solutions.