MAX20051AUD/V+W

LED Driver IC Overview

The MAX20051AUD/V+W is a high-efficiency, fully synchronous step-down (buck) LED driver IC from Analog Devices / Maxim Integrated. It integrates two internal power MOSFETs with a typical on-resistance of 0.14 ohms to deliver up to 2A of output current for driving series LED strings. The device supports a wide input voltage range from 4.5V to 65V and offers selectable switching frequencies of 400kHz or 2.1MHz. It features analog PWM dimming capability and holds AEC-Q100 automotive qualification.

LED Driver IC Feature Summary

• Fully synchronous buck topology with integrated high-side and low-side MOSFETs
• Wide input voltage compatibility supporting 4.5V to 65V sources
• Configurable switching frequency options for optimized inductor selection
• Automotive-grade reliability with AEC-Q100 certification

LED Driver IC Applications

• Automotive exterior lighting systems
• High-brightness LED string drivers
• Industrial LED illumination modules

LED Driver IC Procurement Notes

Verify the specific suffix 'W' against official Analog Devices documentation to confirm package type and temperature rating variations. Ensure the selected variant matches the required thermal management and pinout configuration for the target PCB layout. Cross-reference the datasheet revision history for any updates to electrical characteristics or recommended operating conditions prior to final procurement.

LED Driver IC Selection Notes

Select this component when designing LED drivers requiring high input voltages up to 65V and currents up to 2A. The integrated MOSFETs reduce external component count compared to discrete solutions. Choose between 400kHz and 2.1MHz frequencies based on available space for passive components and efficiency requirements. Ensure the application environment meets the specified operating temperature range for reliable long-term performance.

LED Driver IC Part Context

This part belongs to the MAX20051/MAX20053 family of synchronous buck LED drivers designed for robust performance in demanding environments. The series is characterized by its ability to drive multiple LEDs in series while maintaining high efficiency through synchronous rectification. It serves as a key solution for applications where size constraints and thermal performance are critical design factors.

LED Driver IC Replacement Considerations

Consult official substitution guides for compatible alternatives within the MAX20051 family or similar synchronous buck LED drivers. Verify that any substitute maintains the same input voltage range, current capacity, and package dimensions to ensure board compatibility without redesign.