MP3318GC-P

LED Driver IC Overview

The MP3318GC-P is a three-channel, step-up white LED (WLED) driver from Monolithic Power Systems. It supports linear and exponential dimming with I2C interface control. The device features a 42V internal MOSFET and operates with a power supply input range of 2.7V to 5.5V. Each channel provides a current sink configurable from 20mA to 150mA using external resistors. The IC utilizes peak-current mode regulation for the WLED boost converter.

LED Driver IC Feature Summary

• Integrates a 42V internal MOSFET for efficient step-up conversion
• Supports linear and exponential analog dimming methods
• Includes three independent current sinks for multi-LED strings
• Enables digital control via I2C communication interface

LED Driver IC Applications

• White LED backlighting in mobile devices
• Display illumination systems requiring precise current regulation
• Portable electronics utilizing I2C-controlled lighting

LED Driver IC Procurement Notes

Verify the specific suffix 'P' indicates lead-free compliance and RoHS status as per manufacturer documentation. Confirm package type and pinout compatibility with your PCB layout before ordering. Ensure I2C address settings align with system requirements. Cross-reference official MPS datasheets for absolute maximum ratings and thermal performance data.

LED Driver IC Selection Notes

Select this component when designing circuits requiring three independent WLED channels with high voltage headroom up to 38V output. It is suitable for applications needing both analog dimming flexibility and digital I2C configuration. Consider the 2.7V to 5.5V input range for battery-powered systems. Evaluate the 20mA to 150mA current sink range against LED string requirements.

LED Driver IC Part Context

This part belongs to the MP3318 family of WLED drivers from Monolithic Power Systems. The series focuses on energy-efficient power management for portable electronic displays. The MP3318GC-P variant specifically denotes the commercial grade or specific packaging option within this product line, designed for integration into compact mobile form factors.

LED Driver IC Replacement Considerations

Check for MP3318GC-Z as a potential alternative variant within the same family. Verify functional equivalence regarding pinout and electrical specifications before substitution. Consult official MPS documentation for any differences in operating temperature ranges or package dimensions between variants.