MAX20408AFOF/VY+T

Voltage Regulators - DC DC Switching Regulators Overview

The MAX20408AFOF/VY+T is a fully synchronous buck converter from the MAX204xx family, manufactured by Analog Devices Inc./Maxim Integrated. It operates with an input voltage range of 3V to 36V and delivers up to 8A of output current. The device features a fixed 400kHz switching frequency and supports a minimum output voltage of 0.8V. It utilizes a 17-FC2QFN (3.5x3.75mm) package for surface mount installation. Key electrical parameters include a maximum output voltage of 10V and a quiescent current of 10µA.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Fully integrated synchronous rectification with high-side and low-side switches
• Optimized for dual-phase operation with high current sharing accuracy
• Supports spread-spectrum frequency modulation to minimize EMI noise
• Enables dropout operation at 99% duty cycle

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems
• Advanced Driver Assistance Systems (ADAS)
• Industrial high-voltage DC/DC converters
• Safety-critical automotive applications

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'OF' against official datasheets to confirm the 400kHz frequency variant. Ensure the 'T' indicates tape-and-reel packaging if required for automated assembly. Confirm AEC-Q100 qualification status for automotive deployment. Cross-reference the manufacturer part number directly with Analog Devices documentation to avoid confusion with similar MAX204xx models.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when an 8A continuous current capability is required within a compact footprint. The 400kHz frequency allows for smaller passive components compared to higher-frequency alternatives. Verify that the application requires a fixed frequency rather than programmable options. Ensure the system design accommodates the thermal requirements of the 17-lead QFN package under full load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the MAX204xx series of automotive-grade synchronous buck converters. The series offers pin-to-pin compatibility across various current ratings from 4A to 10A in single-phase configurations. These devices are designed for high efficiency and low static current, making them suitable for always-on systems in demanding environments.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

MAX20408AFOB/VY+T

Voltage Regulators - DC DC Switching Regulators FAQ

What is the switching frequency of the MAX20408AFOF/VY+T?

The MAX20408AFOF/VY+T operates at a fixed internal switching frequency of 400 kHz.

Does this device support dual-phase operation?

Yes, the MAX204xx series is optimized for dual-phase operation with high current sharing accuracy.