LM3502ITLX-25/NOPB

Overview

The LM3502ITLX-25/NOPB is a step-up converter IC designed for white LED applications. It operates within an input voltage range of 2.7 V to 5.5 V and supports output voltages up to 17.5 V. The device features a switching frequency of 850 kHz and delivers a constant output current of 30 mA. It utilizes a DSBGA-9 package and functions across a temperature range of -40 °C to +85 °C.

Feature Summary

• Integrates a synchronous boost converter topology for efficient white LED driving.
• Supports PWM dimming control for adjustable brightness regulation.
• Maintains constant current output to ensure stable LED performance.

Applications

• White LED lighting driver circuits
• Portable electronic display backlighting systems
• Compact consumer electronics requiring regulated LED power

Procurement Notes

Verify the specific suffix '25' against official Texas Instruments documentation to confirm the intended operating parameters and pin configuration. Confirm the component status, as availability data may indicate obsolete lifecycle stages. Ensure the DSBGA-9 package type matches the target PCB footprint requirements before finalizing procurement decisions.

Selection Notes

Select this component when a compact solution for white LED regulation is required with a wide input voltage range. Consider the 850 kHz switching frequency for inductor size optimization. Evaluate the 30 mA output current capability against the specific LED string requirements. Verify thermal performance within the specified operating temperature range for the intended application environment.

Part Context

This part belongs to the LM3502 series of LED drivers from Texas Instruments. It is specifically engineered for step-up conversion in portable devices. The NOPB suffix indicates lead-free and RoHS compliance. The ITLX designation refers to the specific tape and reel packaging format for surface-mount assembly.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official Texas Instruments resources for potential cross-reference options or updated series components if this specific variant is unavailable.