MAX20408AFOE/VY+

Voltage Regulators - DC DC Switching Regulators Overview

The MAX20408AFOE/VY+ is a fully synchronous buck converter IC from Analog Devices/Maxim Integrated, designed for automotive applications. It supports an input voltage range of 3V to 36V and delivers up to 8A output current. The device features a switching frequency of 2.1MHz and offers programmable or fixed output voltages starting at 0.8V. It operates within a temperature range of -40°C to 125°C and utilizes a 17-PowerWFQFN package with wettable flanks.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Fully integrated synchronous buck topology with dual-phase capability
• Optimized EMI performance through spread spectrum frequency modulation
• Built-in low-dropout regulator (LDO) for auxiliary power needs
• Comprehensive protection including cycle-by-cycle and hiccup current limiting

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems
• Telematics control units
• Body electronics modules
• ADAS sensor power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix VY+ indicates the lead-free RoHS-compliant variant with wettable flank packaging. Confirm AEC-Q100 qualification status for your target automotive grade requirements. Check official distributor channels for current availability as supply may be limited. Ensure compatibility with your PCB footprint for the 17-PowerWFQFN package.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when high efficiency and compact size are critical for 36V automotive bus architectures. The 2.1MHz frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the built-in LDO if a secondary rail is needed without additional circuitry. Verify thermal management capabilities for the intended load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the MAX204xx family of automotive-grade buck converters. It shares architectural similarities with the MAX20406 and MAX20410 but differs in current rating and switching frequency. The family targets robust power delivery in space-constrained automotive environments requiring high reliability and electromagnetic interference control.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other members of the MAX204xx series such as the MAX20406AFOA/VY+T or MAX20410AFOB/VY+, depending on required current capacity. Cross-reference pinouts and thermal pads before substitution. Verify that alternative parts meet the same AEC-Q100 automotive qualification standards.