MAX20051AUD+

LED Driver IC Overview

The MAX20051AUD+ is a synchronous-buck LED driver from Analog Devices Inc./Maxim Integrated, housed in a 14-TSSOP package. It delivers a regulated output current of 2A per channel with a switching frequency of 400kHz. The device supports both analog dimming via the REFI pin (0–1.2V range) and PWM dimming. It includes an integrated 5V/10mA LDO output for auxiliary power. The component operates within a temperature range of -40°C to +125°C and is designed for surface mount assembly.

LED Driver IC Feature Summary

• Synchronous buck topology for high-efficiency LED regulation
• Supports analog and PWM dimming control methods
• Integrated low-dropout regulator for system biasing

LED Driver IC Applications

• Automotive headlamps
• Daytime running lights (DRLs)
• Fog lamps
• Commercial lighting systems

LED Driver IC Procurement Notes

Verify the exact suffix 'AUD+' against official Analog Devices documentation to confirm package type and temperature grade. Ensure compatibility with automotive-grade specifications if used in vehicle applications. Cross-reference part numbers carefully as distributor listings may vary in accuracy regarding obsolete status or alternative revisions.

LED Driver IC Selection Notes

Select this component when a 2A constant current drive is required for high-power LEDs in space-constrained designs. The 14-TSSOP package suits surface-mount applications. Consider the integrated LDO if a separate 5V supply is needed for controller logic. Verify thermal management requirements given the 125°C operating limit.

LED Driver IC Part Context

This IC belongs to the MAX20051 family of synchronous-buck LED drivers. These devices are engineered for automotive and commercial lighting where reliability and precise current regulation are critical. The family typically offers multiple channel configurations and dimming options tailored for complex lighting architectures.

LED Driver IC Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Analog Devices technical support for qualified alternatives.