MIC2289-24YML

LED Driver IC Overview

The MIC2289-24YML is a white LED driver IC manufactured by Microchip Technology, formerly Micrel. It operates as a step-down DC-DC regulator with an internal switch and supports PWM dimming for backlight applications. The device accepts a DC input voltage range of 2.5V to 10V and delivers a maximum output current of 750mA. It features a fixed switching frequency of 1.2MHz and includes overvoltage protection rated at 24V. The component is housed in an 8-pin MLF (2x2mm) package with exposed pad, suitable for surface-mount assembly.

LED Driver IC Feature Summary

• Integrates internal power switches for compact design
• Supports analog and PWM dimming operations
• Includes 24V overvoltage protection circuitry

LED Driver IC Applications

• Backlight illumination systems
• White LED driving circuits

LED Driver IC Procurement Notes

Verify the manufacturer designation carefully, as the part was originally produced by Micrel Inc. before acquisition by Microchip Technology. Ensure the ordering suffix matches the required tape and reel quantity, typically 5000 units per reel. Confirm that the specific variant corresponds to the 24V overvoltage protection rating and the 8-MLF package type to avoid integration errors in PCB designs.

LED Driver IC Selection Notes

Select this component when designing space-constrained LED drivers requiring high efficiency and precise brightness control. The 1.2MHz switching frequency allows for smaller external passive components compared to lower-frequency alternatives. Consider the 2.5V minimum input voltage requirement for battery-powered applications and ensure the thermal performance of the 8-MLF package meets the system's heat dissipation needs under full load conditions.

LED Driver IC Part Context

The MIC2289 series represents a family of single-channel LED drivers designed for portable electronics. This specific model integrates regulation and switching functions into a small footprint, eliminating the need for external power transistors. It is commonly used in mobile devices and handheld gadgets where board space is limited and efficient power management is critical for extending battery life.

LED Driver IC Replacement Considerations

• MIC2289-34YML-TR
• MIC2289-24YML-TR

LED Driver IC FAQ

What is the maximum output voltage protection level?

The MIC2289-24YML features an overvoltage protection limit of 24V.

Does the device support digital or analog dimming?

The component supports both analog and PWM dimming operations for brightness control.