MIC2297-38YML-TR

LED Driver IC Overview

The MIC2297-38YML-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 supports up to 10 series-connected WLEDs. The device features an internal 40V switch with a guaranteed switch current of 1.2A, enabling output currents up to 0.12A and power up to 3.6W. Operating at frequencies of 600kHz or 1.2MHz depending on the suffix, it utilizes a simple current mirror technique to drive up to 60 derived elements in mobile phone applications.

LED Driver IC Feature Summary

• Optimized for driving multiple series-connected white LEDs with high brightness
• Integrates a 40V internal switch capable of handling 1.2A switch current
• Supports PWM dimming control for brightness adjustment
• Eliminates the need for multiple external ballast resistors

LED Driver IC Applications

• Mobile phone backlighting systems
• White LED driver circuits
• Portable electronic display illumination

LED Driver IC Procurement Notes

Verify the specific suffix (e.g., -38 vs -42) against the required switching frequency specification, as variants operate at different frequencies such as 600kHz or 1.2MHz. Confirm the package type is 10-VFDFN Exposed Pad or 10-MLF. Ensure compliance with RoHS standards and check for lead-free certification. Validate that the supplier provides official Microchip Technology documentation for the exact part number to avoid counterfeit components.

LED Driver IC Selection Notes

Select this component when designing LED drivers requiring a compact solution for 6 to 10 series white LEDs. The choice depends on the required operating frequency; verify if 600kHz or 1.2MHz operation is needed for the specific application constraints. Ensure the input voltage range of 2.5V to 10V matches the system power supply. Consider the 1.2A switch current capability for driving higher brightness requirements without external pass transistors.

LED Driver IC Part Context

This part belongs to the MIC2297 family of PMIC LED drivers manufactured by Microchip Technology. It is designed specifically for portable devices where space and efficiency are critical. The device integrates the necessary switching elements and control logic into a small footprint, simplifying the design of high-brightness LED backlights for consumer electronics.

LED Driver IC Replacement Considerations

Check for other MIC2297 variants with different suffixes if the switching frequency requirement differs. Verify pin compatibility and thermal performance when substituting with similar boost regulators from other manufacturers.