LM3503ITLX-16/NOPB

LED Driver IC Overview

The LM3503ITLX-16/NOPB is a Texas Instruments LED lighting driver IC featuring a boost topology. It provides two output channels with a maximum switch current of 400 mA. The device operates within a supply voltage range of 2.5 V to 5.5 V and supports an operating frequency of 1 MHz. It utilizes a 10-TµSMD (1.9x2.07) package and functions across temperatures from -40°C to +85°C.

LED Driver IC Feature Summary

• Integrates dual-channel constant current regulation for white LED applications
• Supports analog and PWM dimming control methods
• Utilizes a compact surface-mount package design

LED Driver IC Applications

• White LED backlighting systems
• Portable electronic device illumination
• General LED lighting drivers

LED Driver IC Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix matches the required pinout and electrical specifications. Check for obsolescence status as availability may be limited. Ensure storage conditions comply with moisture sensitivity levels defined in the datasheet. Validate that the ordering part number aligns exactly with the intended application requirements before purchase.

LED Driver IC Selection Notes

Select this component when designing circuits requiring dual-channel LED drive with high efficiency. Consider the 1 MHz switching frequency for smaller external passive components. Evaluate the 400 mA output capability against load requirements. Ensure the input voltage range suits the power source. Verify thermal performance within the specified operating temperature limits.

LED Driver IC Part Context

This part belongs to the LM3503 series, designed for efficient LED driving. It complements other Texas Instruments power management solutions by providing specialized regulation for lighting applications. The series focuses on integrating control logic and power stages into small footprints suitable for space-constrained portable devices.

LED Driver IC Replacement Considerations

LM3503SQ-16/NOPB: Similar functionality but different package type.

LED Driver IC FAQ

What dimming methods are supported?

The device supports both analog and PWM dimming.

What is the maximum switch current?

The maximum switch current is 400 mA.