MAX20419ATGB/V+

Voltage Regulators - DC DC Switching Regulators Overview

The MAX20419ATGB/V+ is a high-efficiency, three-output low-voltage DC-DC converter IC designed for automotive applications. It integrates a synchronous 750mA boost converter and two synchronous buck converters. The boost output provides a fixed 5V at up to 750mA. The dual buck channels operate within a 3.0V to 5.5V input range, delivering adjustable outputs from 0.8V to 3.8V with a maximum current of 3.6A per channel. The device operates at a fixed 2.2MHz switching frequency and supports PWM and skip modes. It features ±1.9% accuracy for the boost output and ±1.4% for the buck outputs. The component is housed in a 24-pin, 4mm x 4mm TQFN package with an exposed pad and is qualified to AEC-Q100 standards for operation between -40°C and +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a single synchronous boost converter and two synchronous buck converters in one compact package.
• Supports ASIL C functional safety requirements through redundant circuits and diagnostic features.
• Features programmable spread spectrum modulation to minimize electromagnetic interference (EMI).
• Includes comprehensive protection mechanisms such as overcurrent, overtemperature, and short-circuit detection.

Voltage Regulators - DC DC Switching Regulators Applications

• Advanced Driver Assistance Systems (ADAS)
• Automotive infotainment systems
• System-on-Chip (SoC) power supply architectures

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'ATGB/V+' against official Analog Devices documentation to confirm pinout and thermal characteristics. Ensure the selected variant meets the required automotive qualification standards. Cross-reference the ordering information with the manufacturer's latest datasheet to validate availability and compliance with RoHS directives before finalizing procurement plans.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is needed for low-voltage automotive power distribution. The integrated boost and dual buck topology reduces external component count compared to discrete solutions. Consider the 2.2MHz switching frequency for smaller passive sizes. Verify that the load requirements fit within the 750mA boost and 3.6A buck limits. Ensure the design accommodates the specific thermal dissipation needs of the 24-pin TQFN package.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the MAX204xx family of multi-output DC-DC converters optimized for automotive environments. It combines multiple power stages into a single chip to save board space. The series is characterized by high efficiency and robust diagnostic capabilities suitable for safety-critical applications. It serves as a centralized power management unit for complex electronic control units requiring multiple voltage rails.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult official Analog Devices substitution guides for verified alternatives. Generic equivalents may not support the same ASIL C certification or integrated topology. Verify compatibility with existing layout and control signals if swapping components.