MIC2291-15YML-TR

LED Driver IC Overview

The MIC2291-15YML-TR is a 1.2MHz PWM boost-switching regulator optimized for high-current white LED photo flash applications. It features an internal switch with a guaranteed current of 1.2A and operates within a 2.5V to 10V input voltage range. The device provides an output voltage up to 16V, selected by the '15' suffix indicating over-voltage protection. It utilizes a constant frequency control scheme to minimize noise and input ripple. The component includes a 95mV feedback voltage reference for efficiency optimization and offers low shutdown current.

LED Driver IC Feature Summary

• Optimized for high-current white LED photo flash applications
• Constant frequency 1.2MHz PWM control scheme reduces noise and input ripple
• Integrated 1.2A internal switch eliminates need for external ballast resistors
• Low-profile 8-lead MLF package option available

LED Driver IC Applications

• Camera flash circuits
• White LED driver systems
• Portable electronic devices requiring high brightness illumination

LED Driver IC Procurement Notes

Verify the specific part number suffix against official Microchip documentation to confirm the over-voltage protection rating. Ensure the ordering information matches the required package type and tape-and-reel specifications. Cross-reference the manufacturer's latest datasheet for any updates on environmental compliance or pinout configurations before finalizing procurement.

LED Driver IC Selection Notes

Select this component when designing circuits for high-current LED flashes requiring precise PWM dimming. The fixed 1.2MHz frequency allows for smaller external passive components compared to lower-frequency regulators. Consider the 16V output limit when determining the maximum number of series-connected LEDs. Verify thermal management requirements given the junction temperature range and power dissipation characteristics.

LED Driver IC Part Context

This part belongs to the MIC2291 family of boost regulators manufactured by Microchip Technology. It shares core architecture with variants offering different over-voltage protection levels, such as the 34V version. The family is designed specifically for portable applications where space and efficiency are critical constraints for driving high-power LEDs.

LED Driver IC Replacement Considerations

Direct substitutes include MIC2291-34YML-TR for higher voltage tolerance or MIC2291YD5-TR for alternative packaging. Verify compatibility regarding over-voltage protection thresholds and physical footprint dimensions before substitution.