LM3520SDX/NOPB

LED Driver IC Overview

The LM3520SDX/NOPB is a dual-output step-up (boost) DC-DC regulator designed for LED driver applications. It features an integrated power switch and operates within an input voltage range of 2.7 V to 5.5 V. The device supports PWM dimming control and includes overvoltage protection. It is housed in a WSON-12 package and rated for operation between -40°C and +85°C.

LED Driver IC Feature Summary

• Dual-output boost topology for driving multiple LED strings
• Integrated high-efficiency power switch
• Supports PWM dimming for brightness control
• Built-in overvoltage protection circuitry

LED Driver IC Applications

• Backlight LED drivers
• Flash LED drivers
• General LED lighting systems

LED Driver IC Procurement Notes

Verify the exact suffix against the manufacturer's current datasheet to ensure compatibility with specific packaging or environmental requirements. Confirm that the WSON-12 package matches your PCB footprint design. Check for any recent process change notifications that may affect component specifications or reliability ratings before finalizing procurement.

LED Driver IC Selection Notes

Select this component when a compact, dual-channel boost solution is required for low-voltage LED applications. Ensure the input supply voltage stays within the 2.7 V to 5.5 V range. Consider the thermal performance of the WSON-12 package in your enclosure design. Verify that the required LED forward voltages are compatible with the boost converter's output capabilities.

LED Driver IC Part Context

This part belongs to the LM35xx series of power management ICs from Texas Instruments. It is specifically engineered for LED lighting applications requiring efficient power conversion. The NOPB suffix indicates it is a lead-free version compliant with RoHS standards, suitable for modern electronics manufacturing processes.

LED Driver IC Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's official replacement guide or contact technical support for direct equivalents.