MAX1938EEI-TG069

Overview

The MAX1938EEI-TG069 is a two-phase CPU core supply controller manufactured by Analog Devices Inc./Maxim Integrated. Designed for high-performance computing applications, it regulates power delivery to central processing units. The device operates with an input voltage of up to 24 V and provides a single regulated output. It is housed in a 28-pin SSOP package with a width of 0.154 inches (3.90 mm). The component supports an operating temperature range from -40°C to +85°C and complies with RoHS standards for lead-free manufacturing.

Feature Summary

• Dual-phase control architecture for efficient CPU core power regulation
• Integrated shutdown capability for power management flexibility
• Compatible with standard SMBus/I2C interface protocols

Applications

• CPU core voltage regulation in server platforms
• High-performance desktop computer motherboards
• Workstation power supply systems

Procurement Notes

Verify the exact suffix TG069 against the manufacturer's current datasheet to confirm pinout and electrical specifications match your design requirements. Ensure the SSOP-28 package dimensions align with your PCB footprint. Confirm RoHS compliance status if required by your regional regulations. Cross-reference the part number with official Analog Devices documentation to avoid counterfeit components.

Selection Notes

Select this component when designing multi-phase buck converters for processor cores requiring precise voltage tracking. Consider the thermal performance of the SSOP-28 package relative to your system's airflow constraints. Evaluate the input voltage range compatibility with your system's main rail. Verify that the controller's switching frequency options meet your inductor size and efficiency targets.

Part Context

This part belongs to the MAX1938 series of specialized power management ICs designed for Intel and AMD processor power delivery. It serves as a dedicated controller rather than a complete regulator, requiring external MOSFETs and passive components. The EEI suffix typically denotes specific temperature and packaging variants within the Maxim Integrated portfolio.

Replacement Considerations

Consult Analog Devices official substitution guides for direct replacements. Generic two-phase controllers may not offer identical transient response characteristics or software compatibility. Verify pin-to-pin compatibility before swapping to ensure mechanical fit without PCB redesign.