IS31LT3353-V1STLS2-TR

Overview

The IS31LT3353-V1STLS2-TR is a continuous mode inductive step-down converter designed for driving single or multiple series-connected LEDs. It features an internal switch and supports analog and PWM dimming. The device operates within a supply voltage range of 6V to 40V, delivering up to 1A of output current. It utilizes a SOT23-5 package (3.0mm x 3.0mm) and includes V1=Vsense configuration with a reference voltage of 91mV-101mV.

Feature Summary

• Monolithic integration of power MOSFET for compact design
• Configurable output current from 20mA to 150mA via external resistors
• Supports both analog and PWM dimming methods
• Built-in protections for extended-life operation

Applications

• General lighting applications
• Backlighting systems
• Signage illumination

Procurement Notes

Verify the specific suffix 'V1STLS2' to ensure correct sense voltage tolerance (91mV-101mV) and package type (SOT23-5). Confirm that the reel quantity matches project requirements, as standard packaging is typically 2,500 units per reel. Check RoHS compliance status and lead times directly with the manufacturer or authorized distributors prior to ordering.

Selection Notes

Select this component for designs requiring a single-channel LED driver with integrated switching capability. It is suitable for applications where space constraints favor the small SOT23-5 footprint. Ensure the input voltage range aligns with the 6V-40V specification and that the required current does not exceed the 1A internal switch limit.

Part Context

This part belongs to the Lumissil IS31LT33xx series of high-brightness LED drivers. These devices are engineered for commercial, residential, and automotive markets, offering flexibility through controller-based or monolithic solutions. The series emphasizes built-in protections and efficiency for various general lighting needs.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consider checking Lumissil's official cross-reference guides or datasheets for compatible alternatives within the IS31LT family.