MIC2297-42YML-TR

LED Driver IC Overview

The MIC2297-42YML-TR is a PWM boost switching regulator optimized for driving white LEDs. It operates with an input voltage range of 2.5V to 10V and provides an output voltage up to 42V. The device features a guaranteed switch current of 1.2A and operates at a frequency of 600kHz. It can drive up to 10 WLEDs in series at 20mA, supporting configurations of up to 60 derived elements via current mirror techniques. The maximum output power is 3.6W.

LED Driver IC Feature Summary

• Optimized for driving 6 to 10 series white LEDs with high brightness
• Internal 40V switch with guaranteed 1.2A switch current capability
• Eliminates the need for multiple ballast resistors
• Supports simple current mirror technique for expanded LED arrays

LED Driver IC Applications

• Mobile phone LCD backlighting
• Portable device illumination
• Signage lighting systems

LED Driver IC Procurement Notes

Verify component authenticity through authorized Microchip Technology distributors or certified partners. Confirm the specific suffix matches the required package and tape/reel specifications. Check for recent Product Change Notices regarding packaging or assembly site updates. Ensure compliance with RoHS and REACH standards as documented in official datasheets. Validate part status, noting that some sources indicate this model may be not recommended for new designs.

LED Driver IC Selection Notes

Select this component for applications requiring efficient boosting of low input voltages to drive multiple series-connected white LEDs. The internal 40V switch handles typical forward voltage requirements for 6-10 LEDs. Consider the 600kHz switching frequency for balancing efficiency and external component size. Evaluate the 1.2A current limit against peak load requirements. Verify thermal performance within the -40°C to +125°C operating range.

LED Driver IC Part Context

This part belongs to the MIC229x family of LED drivers from Microchip Technology (formerly Micrel). It is a specialized PWM boost converter designed specifically for white LED backlighting applications. The device integrates power switches and control logic to simplify design. Related parts include the MIC2295 and MIC2296, which offer similar functionality with varying frequencies or pinouts.

LED Driver IC Replacement Considerations

Publicly confirmed direct substitute part numbers are not available in the provided documentation. Users should consult Microchip Technology for current alternative recommendations or cross-reference guides. Verify compatibility with existing PCB footprints and control signals before substitution.