MIC3291-25YML-TR

LED Driver IC Overview

The MIC3291-25YML-TR is a high-efficiency LED driver IC from Microchip Technology, designed for backlight and display applications. It operates with an input voltage range of 2.5V to 6.5V and delivers a maximum output current of 1.2A via its internal switch. The device utilizes a boost (step-up) topology with a fixed switching frequency of 1.2MHz. Packaged in an 8-pin MLF format, it supports constant voltage regulation and includes an internal driver for direct LED control.

LED Driver IC Feature Summary

• High-efficiency driver architecture optimized for LED displays
• Integrated internal power switch eliminates external components
• Fixed 1.2MHz switching frequency for compact design
• Supports constant voltage regulation for stable backlight performance

LED Driver IC Applications

• LED backlighting systems
• Portable electronic displays
• Mobile device illumination
• Compact LED driver circuits

LED Driver IC Procurement Notes

Verify the exact suffix 'YML-TR' matches the required 8-pin MLF package and tape-and-reel quantity. Confirm RoHS compliance status if restricted material management is required. Ensure the 2.5V minimum input voltage aligns with your system's battery or supply rail specifications before finalizing procurement orders.

LED Driver IC Selection Notes

Select this component when a compact, high-current boost driver is needed for single-channel LED loads. The 1.2A switch capability suits medium-power backlighting. Verify that the 1.2MHz frequency fits EMI constraints. Compare against lower-current alternatives if load requirements are below 20mA, as specified by some distributor listings, though the IC supports up to 1.2A.

LED Driver IC Part Context

This part belongs to Microchip's MIC3291 series of LED drivers. It is specifically engineered for portable electronics requiring efficient power conversion from low-voltage sources. The MLF package provides thermal performance advantages for space-constrained designs compared to larger DFN or SOIC options.

LED Driver IC Replacement Considerations

Check for pin-compatible alternatives within the same family. Verify if other suffixes offer different reel quantities or temperature grades. Ensure substitute parts maintain the 1.2A switch current rating and 1.2MHz frequency to avoid redesigning the inductor or feedback network.

LED Driver IC FAQ

What is the maximum output current capability of the MIC3291-25YML-TR?

The internal switch can handle a maximum output current of 1.2A.

Does the MIC3291-25YML-TR require an external power switch?

No, it features an integrated internal switch, reducing the need for external components.

What is the operating temperature range for this IC?

The junction temperature range is -40°C to 125°C.