LM3520SD/NOPB

LED Driver IC Overview

The LM3520SD/NOPB is a dual-output DC-DC regulator designed for LED backlight applications. It operates with an input voltage range of 2.7V to 5.5V and features two independent boost channels capable of delivering up to 700mA per channel. The device supports PWM dimming control and includes integrated overvoltage protection. Packaged in a compact 14-WSON (4x3mm) format, it facilitates efficient space-constrained designs.

LED Driver IC Feature Summary

• Dual independent boost channels for flexible LED array configurations
• Integrated PWM dimming interface for precise brightness control
• Built-in overvoltage protection safeguards connected loads

LED Driver IC Applications

• LCD panel backlighting systems
• Mobile device display illumination
• Portable electronic lighting modules

LED Driver IC Procurement Notes

Verify the specific suffix against manufacturer documentation to confirm package type and pinout compatibility. Ensure that the ordering information matches the required electrical specifications and thermal performance characteristics for your target application environment.

LED Driver IC Selection Notes

Select this component when dual-channel LED driving is required within a low-voltage supply constraint. Evaluate the maximum output current requirements against the 700mA limit per channel. Confirm that the WSON package dimensions fit within the available PCB real estate constraints.

LED Driver IC Part Context

This part belongs to the LM3520 family of LED drivers from Texas Instruments. It is specifically engineered for high-efficiency power conversion in portable electronics. The NOPB suffix indicates lead-free manufacturing compliant with environmental standards.

LED Driver IC Replacement Considerations

LM3520SDX/NOPB is a documented variant with identical functional specifications but differs in reel packaging quantity.