MIC2291BD5-TR

LED Driver IC Overview

The MIC2291BD5-TR is a 1.2MHz PWM boost-switching regulator optimized for high-current white LED applications. It operates within an ambient temperature range of -40°C to +85°C and supports junction temperatures up to 125°C. The device features analog and PWM dimming capabilities, delivering a switch current of 1.2A per channel. Packaged in a surface-mount TSOT-23-5 format, it functions as a DC-DC regulator designed specifically for camera flash systems.

LED Driver IC Feature Summary

• Integrated 1.2MHz pulse width modulation boost switching regulator architecture
• Supports both analog and PWM dimming control methods
• Optimized for high-current white LED driving requirements
• Surface mount TSOT-23-5 package design

LED Driver IC Applications

• Camera Flash systems
• White LED photo lighting
• High-current LED driver circuits

LED Driver IC Procurement Notes

Verify the manufacturer designation carefully, as some distributor listings incorrectly identify this component as Texas Instruments while official documentation confirms Microchip Technology or Micrel origin. Ensure the part number suffix matches the specific tape-and-reel packaging configuration. Confirm the operating temperature range aligns with your system's thermal requirements before procurement.

LED Driver IC Selection Notes

Select this component when a compact solution for high-current white LED illumination is required. The integrated boost topology eliminates external inductors in some configurations, saving board space. Consider the 1.2MHz switching frequency for EMI management and the dual dimming options for flexible control interface integration in mobile or portable devices.

LED Driver IC Part Context

This component belongs to the MIC2291 family of LED drivers. It serves as a specialized power management IC for portable electronics requiring bright, controlled white LED output. The device integrates the necessary switching elements and control logic into a small footprint, distinguishing it from discrete LED driver solutions.

LED Driver IC Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify pin compatibility and electrical specifications with alternative vendors before substitution.