LTC3490EDD#TRPBF

LED Driver IC Overview

The LTC3490EDD#TRPBF is a high-efficiency, step-up (boost) DC/DC converter with an integrated power switch designed to drive high-power LEDs from low-voltage sources. It operates as a single-cell LED driver capable of delivering up to 350mA output current. The device features analog dimming control and functions within a switching frequency range of 1.3MHz. It supports an input voltage range suitable for single-cell battery applications and includes thermal regulation to protect against overheating during operation.

LED Driver IC Feature Summary

• Integrated high-efficiency boost converter with internal power switch
• Supports analog dimming for precise brightness control
• Includes thermal regulation to prevent overheating
• Designed for driving high-power LEDs from low-voltage sources

LED Driver IC Applications

• LED lighting systems
• Display backlights
• Indicator lights

LED Driver IC Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when sourcing. Confirm the manufacturer designation matches Analog Devices Inc. or its predecessor Linear Technology. Ensure the DFN-8 package type aligns with board layout requirements. Cross-reference the datasheet revision to confirm compatibility with existing design specifications before procurement.

LED Driver IC Selection Notes

Select this component for applications requiring a compact solution for driving high-power LEDs from a single-cell lithium-ion battery. Consider the 350mA output capability and 1.3MHz switching frequency for efficiency and size constraints. Evaluate the analog dimming interface if variable brightness control is required. Verify that the thermal regulation feature meets the ambient temperature operating conditions of the target environment.

LED Driver IC Part Context

This part belongs to the LTC3490 series of LED drivers manufactured by Analog Devices Inc. It is functionally similar to the LTC3490ES8#TRPBF variant, differing primarily in the package style. The series is characterized by high efficiency and integrated power switches for space-constrained LED applications.

LED Driver IC Replacement Considerations

LTC3490ES8#TRPBF

LED Driver IC FAQ

What type of dimming does the LTC3490 support?

The LTC3490 supports analog dimming for controlling LED brightness.

Is the LTC3490 a buck or boost converter?

It is a step-up (boost) DC/DC converter designed to increase voltage for LED driving.