MIC2287-34YML

LED Driver IC Overview

The MIC2287-34YML is a 1.2MHz pulse width modulated (PWM) boost-switching regulator optimized for constant-current white LED driver applications. It operates with an input voltage range of 2.5V to 10V and supports output voltages up to 34V. The device features over 500mA switch current capability and utilizes a 95mV feedback voltage reference. It is housed in a compact 2mm x 2mm MLF package or thin SOT-23, designed for efficient power management in portable electronics.

LED Driver IC Feature Summary

• Integrated 1.2MHz PWM operation for high-frequency efficiency
• Built-in overvoltage protection (OVP) up to 34V
• Compact footprint suitable for space-constrained designs

LED Driver IC Applications

• White LED backlighting
• Camera flash drivers
• Portable electronic lighting systems

LED Driver IC Procurement Notes

Verify the manufacturer designation carefully, as Micrel was acquired by Microchip Technology. Ensure the specific suffix matches the required package type (MLF vs. SOT-23) and voltage rating (34V OVP). Confirm RoHS compliance status and check for any recent Product Change Notifications (PCN) regarding packaging or testing sites that may affect supply chain logistics.

LED Driver IC Selection Notes

Select this component when a compact boost regulator is needed for driving white LEDs with precise current control. The 34V OVP rating makes it suitable for series LED configurations requiring higher voltage headroom. Consider the 1.2MHz switching frequency to minimize external passive component size while maintaining good transient response for battery-powered devices.

LED Driver IC Part Context

This part belongs to the MIC2287 family of LED drivers, which includes variants with different overvoltage protection levels, such as the MIC2287-15YML. The family is characterized by its small package options and integrated PWM dimming capabilities, catering to the demands of modern mobile and consumer electronics where board space and power efficiency are critical constraints.

LED Driver IC Replacement Considerations

Direct substitutes include other parts within the MIC2287 family with matching OVP ratings, such as the MIC2287-34YMLTR. Cross-referencing with Microchip's official documentation is recommended to ensure pin compatibility and electrical parameter equivalence before implementation.