MAX8550ETI+TG104

Overview

The MAX8550ETI+TG104 is a PMIC integrating a synchronous-buck PWM controller, an LDO, and a reference buffer for DDR memory power. It generates VDDQ (2V-28V input, up to 15A), VTT (LDO sourcing/sinking up to 1.5A continuous/3A peak), and VTR (10mA buffer). Features include I2C control, tracking outputs, and operation from -40°C to +85°C in a 28-TQFN package.

Feature Summary

• Integrates buck controller, LDO, and reference buffer
• Supports high current output for VDDQ generation
• Enables precise voltage regulation via I2C interface
• Provides redundant power supply capabilities

Applications

• Desktop motherboard DDR memory power
• Notebook system DDR power solutions
• Graphic card memory power supplies
• Redundant power supply systems

Procurement Notes

Verify the G104 suffix against official Analog Devices documentation to confirm specific tape-and-reel or packaging specifications. Ensure compatibility with existing PCB footprints and thermal requirements. Cross-reference the exact part number with authorized distributors to avoid counterfeit components. Confirm RoHS compliance status prior to final procurement decisions.

Selection Notes

Select this component when designing DDR memory power architectures requiring integrated buck, LDO, and reference functions. Consider its ability to track REFIN voltage and support high peak currents. Evaluate thermal dissipation needs given the TQFN package. Verify I2C address configuration and ensure adequate input voltage range for the target application environment.

Part Context

Part of the MAX8550/MAX8551 family designed for DDR power solutions. These devices simplify board design by combining multiple regulators into a single IC. They are widely used in computing platforms requiring stable and efficient memory power delivery. The integration reduces component count and saves valuable PCB space compared to discrete solutions.

Replacement Considerations

MAX8551ETE+T